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CYWUSB6934-48LTXC

型号:

CYWUSB6934-48LTXC

品牌:

CYPRESS[ CYPRESS ]

页数:

33 页

PDF大小:

381 K

CYWUSB6934  
CYWUSB6932  
WirelessUSB™ LS 2.4 GHz DSSS Radio  
SoC  
Features  
Functional Description  
2.4-GHz radio transceiver  
The CYWUSB6932/CYWUSB6934 Integrated Circuits (ICs)  
are highly integrated 2.4-GHz Direct Sequence Spread  
Spectrum (DSSS) Radio System-on-Chip (SoC) ICs. From the  
Serial Peripheral Interface (SPI) to the antenna, these ICs are  
single-chip 2.4-GHz DSSS Gaussian Frequency Shift Keying  
(GFSK) baseband modems that connect directly to a micro-  
controller via simple serial interface.  
Operates in the unlicensed Industrial, Scientific, and Medical  
(ISM) band (2.4 GHz–2.483 GHz)  
-90-dBm receive sensitivity  
Up to 0 dBm output power  
Range of up to 10 meters or more  
Data throughput of up to 62.5 kbits/sec  
The CYWUSB6932 transmit-only IC and the CYWUSB6934  
transceiver IC are available in a small footprint 48-pin QFN  
package.  
Highly integrated low cost, minimal number of external  
components required  
Applications  
Dual DSSS reconfigurable baseband correlators  
SPI microcontroller interface (up to 2-MHz data rate)  
13-MHz ± 50-ppm input clock operation  
Low standby current < 1 µA  
PC Human Interface Devices (HIDs)  
Mice  
Keyboards  
Joysticks  
Peripheral Gaming Devices  
Game Controllers  
Console Keyboards  
Integrated 30-bit Manufacturing ID  
Operating voltage from 2.7V to 3.6V  
General  
Operating temperature from 0° to 70°C  
Presenter Tools  
Remote Controls  
Consumer Electronics  
Barcode Scanners  
POS Peripherals  
Toys  
Offered in a small footprint 48 Quad Flat Pack No Leads  
(QFN)  
Logic Block Diagram – CYWUSB6932/CYWUSB6934  
DIOVAL  
DIO  
GFSK  
Modulator  
DSSS  
Baseband  
A
RFOUT  
RFIN  
SERDES  
A
IRQ  
SS  
SCK  
MISO  
MOSI  
DSSS  
Baseband  
B
Digital  
SERDES  
B
GFSK  
Demodulator  
RESET  
PD  
Synthesizer  
CYWUSB6934Only  
Cypress Semiconductor Corporation  
Document 38-16007 Rev. *J  
198 Champion Court  
San Jose, CA 95134-1709  
408-943-2600  
Revised October 1, 2009  
[+] Feedback  
 
CYWUSB6934  
CYWUSB6932  
Both the receiver and transmitter integrated Voltage Controlled  
Oscillator (VCO) and synthesizer have the agility to cover the  
complete 2.4-GHz GFSK radio transmitter ISM band. The  
synthesizer provides the frequency-hopping local oscillator for  
the transmitter and receiver. The VCO loop filter is also  
integrated on-chip.  
Applications Support  
The CYWUSB6932/CYWUSB6934 ICs are supported by the  
CY3632 WirelessUSB Development Kit. The development kit  
provides all of the materials and documents needed to cut the  
cord on wired applications including two radio modules that  
connect directly to two prototyping platform boards, compre-  
hensive WirelessUSB protocol code examples a WirelessUSB  
Listener tool and all of the associated schematics, gerber files  
and bill of materials.  
GFSK Modem  
The transmitter uses a DSP-based vector modulator to convert  
the 1-MHz chips to an accurate GFSK carrier.  
The CY4632 WirelessUSB LS Keyboard Mouse Reference  
Design provides a production-worthy example of a wireless  
mouse and keyboard system.  
The receiver uses a fully integrated Frequency Modulator (FM)  
detector with automatic data slicer to demodulate the GFSK  
signal.  
The CY3633 WirelessUSB LS Gaming Development Kit  
provides support for designing a wireless gamepad for the major  
gaming consoles and is offered as an accessory to the CY3632  
WirelessUSB.  
Dual DSSS Baseband  
Data is converted to DSSS chips by a digital spreader.  
De-spreading is performed by an oversampled correlator. The  
DSSS baseband cancels spurious noise and assembles  
properly correlated data bytes.  
Functional Overview  
The CYWUSB6932/CYWUSB6934 ICs provide a complete  
WirelessUSB LS SPI to antenna radio modem. The SoC is  
designed to implement wireless devices operating in the  
worldwide 2.4-GHz Industrial, Scientific, and Medical (ISM)  
frequency band (2.400 GHz–2.4835 GHz). It is intended for  
systems compliant with world-wide regulations covered by ETSI  
EN 301 489-1 V1.4.1, ETSI EN 300 328-1 V1.3.1 (European  
Countries); FCC CFR 47 Part 15 (USA and Industry Canada)  
and ARIB STD-T66 (Japan).  
The DSSS baseband has three operating modes: 64 chips/bit  
Single Channel, 32 chips/bit Single Channel, and 32 chips/bit  
Single Channel Dual Data Rate (DDR).  
64 Chips/Bit Single Channel  
The baseband supports a single data stream operating at 15.625  
kbits/sec. The advantage of selecting this mode is its ability to  
tolerate a noisy environment. This is because the 15.625  
kbits/sec data stream utilizes the longest PN Code resulting in  
the highest probability for recovering packets over the air. This  
mode can also be selected for systems requiring data transmis-  
sions over longer ranges.  
The CYWUSB6934 IC contains a 2.4-GHz radio transceiver, a  
GFSK modem and a dual DSSS reconfigurable baseband. The  
CYWUSB6932 IC contains a 2.4-GHz radio transmit-only, a  
GFSK modem and a DSSS baseband. The radio and baseband  
are both code- and frequency-agile. Forty-nine spreading codes  
selected for optimal performance (Gold codes) are supported  
across 78 1-MHz channels yielding a theoretical spectral  
capacity of 3822 channels. Both ICs support a range of up to 10  
meters or more.  
32 Chips/Bit Single Channel  
The baseband supports a single data stream operating at 31.25  
kbits/sec.  
32 Chips/Bit Single Channel Dual Data Rate (DDR)  
The baseband spreads bits in pairs and supports a single data  
stream operating at 62.5 kbits/sec.  
2.4-GHz Radio  
The receiver and transmitter are a single-conversion low-Inter-  
mediate Frequency (low-IF) architecture with fully integrated IF  
channel matched filters to achieve high performance in the  
presence of interference. An integrated Power Amplifier (PA)  
provides an output power control range of 30 dB in seven steps.  
Serializer/Deserializer (SERDES)  
The CYWUSB6934 IC has a data Serializer/Deserializer  
(SERDES), which provides byte-level framing of transmit and  
receive data. Bytes for transmission are loaded into the SERDES  
and receive bytes are read from the SERDES via the SPI  
interface. The SERDES provides double buffering of transmit  
and receive data. While one byte is being transmitted by the  
radio the next byte can be written to the SERDES data register  
insuring there are no breaks in transmitted data.  
Table 1. Internal PA Output Power Step Table  
PA Setting  
Typical Output Power (dBm)  
7
6
5
4
3
2
1
0
0
–2.4  
–5.6  
After a receive byte has been received it is loaded into the  
SERDES data register and can be read at any time until the next  
byte is received, at which time the old contents of the SERDES  
data register will be overwritten. The CYWUSB6932 IC only has  
a data Serializer.  
–9.7  
–16.4  
–20.8  
–24.8  
–29.0  
Document 38-16007 Rev. *J  
Page 2 of 33  
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CYWUSB6934  
CYWUSB6932  
To check for a quiet channel before transmitting, first set up  
receive mode properly and read the RSSI register (Reg 0x22). If  
the valid bit is zero, then force the Carrier Detect register (Reg  
0x2F, bit 7=1) to initiate an ADC conversion. Then, wait greater  
than 50 μs and read the RSSI register again. Next, clear the  
Carrier Detect Register (Reg 0x2F, bit 7=0) and turn the receiver  
OFF. Measuring the noise floor of a quiet channel is inherently a  
'noisy' process so, for best results, this procedure should be  
repeated several times (~20) to compute an average noise floor  
level. A RSSI register value of 0-10 indicates a channel that is  
relatively quiet. A RSSI register value greater than 10 indicates  
the channel is probably being used. A RSSI register value  
greater than 28 indicates the presence of a strong signal.  
Application Interfaces  
Both ICs have a fully synchronous SPI slave interface for  
connectivity to the application MCU. Configuration and  
byte-oriented data transfer can be performed over this interface.  
An interrupt is provided to trigger real time events.  
An optional SERDES Bypass mode (DIO) is provided for appli-  
cations that require a synchronous serial bit-oriented data path.  
This interface is for data only.  
Clocking and Power Management  
A 13-MHz crystal (±50 ppm or better) is directly connected to  
X13IN and X13 without the need for external capacitors. Both ICs  
have a programmable trim capability for adjusting the on-chip  
load capacitance supplied to the crystal. The Radio Frequency  
(RF) circuitry has on-chip decoupling capacitors. Both devices  
are powered from a 2.7V to 3.6V DC supply. Both devices can  
be shutdown to a fully static state using the PD pin.  
Application Interfaces  
SPI Interface  
The CYWUSB6932/CYWUSB6934 ICs have a four-wire SPI  
communication interface between an application MCU and one  
or more slave devices. The SPI interface supports single-byte  
and multi-byte serial transfers. The four-wire SPI communica-  
tions interface consists of Master Out-Slave In (MOSI), Master  
In-Slave Out (MISO), Serial Clock (SCK), and Slave Select (SS).  
Below are the requirements for the crystal to be directly  
connected to X13IN and X13:  
Nominal Frequency: 13 MHz  
Operating Mode: Fundamental Mode  
Resonance Mode: Parallel Resonant  
Frequency Stability: ± 50 ppm  
Series Resistance: 100 ohms  
Load Capacitance: 10 pF  
The SPI receives SCK from an application MCU on the SCK pin.  
Data from the application MCU is shifted in on the MOSI pin.  
Data to the application MCU is shifted out on the MISO pin. The  
active-low Slave Select (SS) pin must be asserted to initiate a  
SPI transfer.  
The application MCU can initiate a SPI data transfer via a  
multi-byte transaction. The first byte is the Command/Address  
byte, and the following bytes are the data bytes as shown in  
Figure 2 through Figure 3. The SS signal should not be  
deasserted between bytes. The SPI communications is as  
follows:  
Drive Level: 10 uW–100 uW  
Receive Signal Strength Indicator (RSSI)  
The RSSI register (Reg 0x22) (applies only to the CYWUSB6934  
IC) returns the relative signal strength of the ON-channel signal  
power and can be used to:  
Command Direction (bit 7) = “0” Enables SPI read transaction.  
A “1” enables SPI write transactions.  
1. Determine the connection quality  
Command Increment (bit 6) = “1” Enables SPI auto address  
increment. When set, the address field automatically incre-  
ments at the end of each data byte in a burst access, otherwise  
the same address is accessed.  
2. Determine the value of the noise floor  
3. Check for a quiet channel before transmitting.  
The internal RSSI voltage is sampled through  
a 5-bit  
analog-to-digital converter (ADC). A state machine controls the  
conversion process. Under normal conditions, the RSSI state  
machine initiates a conversion when an ON-channel carrier is  
detected and remains above the noise floor for over 50 μs. The  
conversion produces a 5-bit value in the RSSI register (Reg  
0x22, bits 4:0) along with a valid bit, RSSI register (Reg 0x22, bit  
5). The state machine then remains in HALT mode and does not  
reset for a new conversion until the receive mode is toggled off  
and on. Once a connection has been established, the RSSI  
register can be read to determine the relative connection quality  
of the channel. A RSSI register value lower than 10 indicates that  
the received signal strength is low, a value greater than 28  
indicates a strong signal level.  
Six bits of address.  
Eight bits of data.  
The SPI communications interface has a burst mechanism,  
where the command byte can be followed by as many data bytes  
as desired. A burst transaction is terminated by deasserting the  
slave select (SS = 1). For burst read transactions, the application  
MCU must abide by the timing shown in Figure 12.  
The SPI communications interface single read and burst read  
sequences are shown in Figure 1 and Figure 2, respectively.  
The SPI communications interface single write and burst write  
sequences are shown in Figure 3 and Figure 4, respectively.  
Document 38-16007 Rev. *J  
Page 3 of 33  
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CYWUSB6934  
CYWUSB6932  
Table 2. SPI Transaction Format  
Byte 1  
Byte 1+N  
[7:0]  
Bit #  
7
6
[5:0]  
Bit Name  
DIR  
INC  
Address  
Data  
Figure 1. SPI Single Read Sequence  
S C K  
S S  
M O S I  
M IS O  
c m d  
a d d r  
D IR  
IN C  
A 5  
A 4  
A 3  
A 2  
A 1  
A 0  
0
0
d a ta to m c u  
D 7  
D 6  
D 5  
D 4  
D 3  
D 2  
D 1  
D 0  
Figure 2. SPI Burst Read Sequence  
S C K  
S S  
cm d  
addr  
D IR  
IN C  
M O S I  
M IS O  
0
1
A 5  
A 4  
A 3  
A 2  
A 1  
A 0  
data to m cu  
data to m cu  
1+N  
1
D 7  
D 6  
D 5  
D 4  
D 3  
D 2  
D 1  
D 0  
D 7  
D 6  
D 5  
D 4  
D 3  
D 2  
D 1  
D 0  
Figure 3. SPI Single Write Sequence  
SCK  
SS  
cmd  
addr  
data from mcu  
DIR  
INC  
MOSI  
MISO  
D6  
D5  
D4  
D3  
D2  
D1  
D0  
A5  
A4  
A3  
A2  
A1  
A0  
D7  
1
0
Figure 4. SPI Burst Write Sequence  
SCK  
SS  
cmd  
addr  
data from mcu  
data from mcu  
1+N  
1
DIR  
INC  
MOSI  
MISO  
D7  
D6  
D5  
D4  
D3  
D2  
D1  
D0  
D7  
D6  
D5  
D4  
D3  
D2  
D1  
D0  
1
1
A5  
A4  
A3  
A2  
A1  
A0  
Document 38-16007 Rev. *J  
Page 4 of 33  
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CYWUSB6934  
CYWUSB6932  
Wake Interrupt  
DIO Interface  
When the PD pin is low, the oscillator is stopped. After PD is  
deasserted, the oscillator takes time to start, and until it has done  
so, it is not safe to use the SPI interface. The wake interrupt  
indicates that the oscillator has started, and that the device is  
ready to receive SPI transfers.  
The DIO communications interface is an optional SERDES  
bypass data-only transfer interface. In receive mode, DIO and  
DIOVAL are valid after the falling edge of IRQ, which clocks the  
data as shown in Figure 5. In transmit mode, DIO and DIOVAL  
are sampled on the falling edge of the IRQ, which clocks the data  
as shown in Figure 6. The application MCU samples the DIO and  
DIOVAL on the rising edge of IRQ.  
The wake interrupt is enabled by setting bit 0 of the Wake Enable  
register (Reg 0x1C, bit 0=1). Whether or not a wake interrupt is  
pending is indicated by the state of bit 0 of the Wake Status  
register (Reg 0x1D, bit 0). Reading the Wake Status register  
(Reg 0x1D) clears the interrupt.  
Interrupts  
The CYWUSB6932/CYWUSB6934 ICs feature three sets of  
interrupts: transmit, receive (CYWUSB6934 only), and a wake  
interrupt. These interrupts all share a single pin (IRQ), but can  
be independently enabled/disabled. In transmit mode, all receive  
interrupts are automatically disabled, and in receive mode all  
transmit interrupts are automatically disabled. However, the  
contents of the enable registers are preserved when switching  
between transmit and receive modes.  
Transmit Interrupts  
Four interrupts are provided to flag the occurrence of transmit  
events. The interrupts are enabled by writing to the Transmit  
Interrupt Enable register (Reg 0x0D), and their status may be  
determined by reading the Transmit Interrupt Status register  
(Reg 0x0E). If more than 1 interrupt is enabled, it is necessary to  
read the Transmit Interrupt Status register (Reg 0x0E) to  
determine which event caused the IRQ pin to assert.  
Interrupts are enabled and the status read through 6 registers:  
Receive Interrupt Enable (Reg 0x07), Receive Interrupt Status  
(Reg 0x08), Transmit Interrupt Enable (Reg 0x0D), Transmit  
Interrupt Status (Reg 0x0E), Wake Enable (Reg 0x1C), Wake  
Status (Reg 0x1D).  
The function and operation of these interrupts are described in  
detail in Section .  
Receive Interrupts  
If more than 1 interrupt is enabled at any time, it is necessary to  
read the relevant interrupt status register to determine which  
event caused the IRQ pin to assert. Even when a given interrupt  
source is disabled, the status of the condition that would  
otherwise cause an interrupt can be determined by reading the  
appropriate interrupt status register. It is therefore possible to  
use the devices without making use of the IRQ pin at all.  
Firmware can poll the interrupt status register(s) to wait for an  
event, rather than using the IRQ pin.  
Eight interrupts are provided to flag the occurrence of receive  
events, four each for SERDES A and B. In 64 chips/bit and 32  
chips/bit DDR modes, only the SERDES A interrupts are  
available, and the SERDES B interrupts will never trigger, even  
if enabled. The interrupts are enabled by writing to the Receive  
Interrupt Enable register (Reg 0x07), and their status may be  
determined by reading the Receive Interrupt Status register (Reg  
0x08). If more than one interrupt is enabled, it is necessary to  
read the Receive Interrupt Status register (Reg 0x08) to  
determine which event caused the IRQ pin to assert.  
The polarity of all interrupts can be set by writing to the Configu-  
ration register (Reg 0x05), and it is possible to configure the IRQ  
pin to be open drain (if active low) or open source (if active high).  
The function and operation of these interrupts are described in  
detail in Section .  
Figure 5. DIO Receive Sequence  
IRQ  
DIOVAL  
DIO  
v8  
v9  
v10  
d10  
v11  
d11  
v12  
d12  
v13  
d13  
v14  
d14  
v...  
d...  
v0  
d0  
v1  
d1  
v2  
d2  
v3  
d3  
v4  
d4  
v5  
d5  
v6  
v7  
data to mcu  
d6  
d7  
d8  
d9  
Figure 6. DIO Transmit Sequence  
IRQ  
DIOVAL  
DIO  
v8  
v9  
v10  
v11  
d11  
v12  
d12  
v13  
d13  
v14  
d14  
v...  
d...  
v0  
v1  
v2  
d2  
v3  
d3  
v4  
d4  
v5  
v6  
v7  
data from mcu  
d8  
d9  
d10  
d0  
d1  
d5  
d6  
d7  
Document 38-16007 Rev. *J  
Page 5 of 33  
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CYWUSB6934  
CYWUSB6932  
Application Examples  
Figure 7. CYWUSB6932 Transmit-Only Battery-Powered Device  
LDO/  
3.3 V  
0.1μF  
DC2DC  
+
-
Battery  
PCB Trace  
Inverted “F”  
Antenna  
(PIFA)  
Vcc  
Vcc  
RESET  
10pF  
Optical  
Mouse  
Sensor  
RFOUT  
PD  
IRQ  
WUSB LS  
Application MCU  
13MHz  
Crystal  
SPI  
4
Buttons  
Figure 8. CYWUSB6934 USB Bridge Transceiver  
PCB Trace Antenna  
3.3V  
5V  
LDO  
0.1μF  
0.1µF 4.7µF  
1µF  
2.0 pF  
1.2 pF  
2.0 pF  
3.3 nH  
USB I/F  
RESET  
Vcc  
1.3K  
RFIN  
PD  
IRQ  
RFOUT  
Cypress  
enCoRe™  
USB MCU  
2.2 nH  
27 pF  
D+/D-  
2
2.2K  
2.2K  
WirelessUSB LS  
SCK  
MOSI  
MISO  
SS  
13MHz  
Crystal  
Document 38-16007 Rev. *J  
Page 6 of 33  
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CYWUSB6934  
CYWUSB6932  
Register Descriptions  
Table 3 displays the list of registers inside the CYWUSB6932/CYWUSB6934 ICs that are addressable through the SPI interface. All  
registers are read and writable, except where noted.  
Table 3. CYWUSB6932/CYWUSB6934 Register Map[2]  
Register Name  
Revision ID  
Mnemonic  
REG_ID  
Address  
0x00  
Page  
Default  
0x07  
0x00  
0x00  
0x01  
0x03  
0x00  
0x00  
0x00  
0x00  
0x00  
0x00  
0x00  
0x00  
0x00  
0x00  
Access  
RO  
page 8  
Control  
REG_CONTROL  
REG_DATA_RATE  
REG_CONFIG  
0x03  
page 8  
RW  
RW  
RW  
RW  
RW  
RO  
Data Rate  
0x04  
page 9  
Configuration  
SERDES Control  
0x05  
page 9  
REG_SERDES_CTL  
0x06  
page 10  
page 10  
page 11  
page 13  
page 13  
page 13  
page 13  
page 14  
page 15  
page 16  
page 16  
Receive SERDES Interrupt Enable REG_RX_INT_EN  
Receive SERDES Interrupt Status REG_RX_INT_STAT  
0x07[1]  
0x08[1]  
0x09[1]  
0x0A[1]  
0x0B[1]  
0x0C[1]  
0x0D  
Receive SERDES Data A  
Receive SERDES Valid A  
Receive SERDES Data B  
Receive SERDES Valid B  
REG_RX_DATA_A  
REG_RX_VALID_A  
REG_RX_DATA_B  
REG_RX_VALID_B  
RO  
RO  
RO  
RO  
Transmit SERDES Interrupt Enable REG_TX_INT_EN  
Transmit SERDES Interrupt Status REG_TX_INT_STAT  
RW  
RO  
0x0E  
Transmit SERDES Data  
Transmit SERDES Valid  
PN Code  
REG_TX_DATA  
REG_TX_VALID  
REG_PN_CODE  
0x0F  
RW  
RW  
RW  
0x10  
0x18–0x11  
page 16 0x1E8B6A3DE0E9B2  
22  
Threshold Low  
Threshold High  
Wake Enable  
REG_THRESHOLD_L  
REG_THRESHOLD_H  
REG_WAKE_EN  
0x19[1]  
0x1A[1]  
0x1C  
page 17  
page 17  
page 17  
page 18  
page 18  
page 19  
page 19  
page 19  
page 20  
page 20  
20  
0x08  
0x38  
0x00  
0x01  
0x04  
0x00  
0x00  
0x00  
0x00  
0x00  
0x00  
0x00  
0x00  
0x00  
0x64  
RW  
RW  
RW  
RO  
RW  
RW  
RO  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RO  
Wake Status  
REG_WAKE_STAT  
REG_ANALOG_CTL  
REG_CHANNEL  
0x1D  
Analog Control  
Channel  
0x20  
0x21  
0x22[1]  
Receive Signal Strength Indicator  
PA Bias  
REG_RSSI  
REG_PA  
0x23  
Crystal Adjust  
REG_CRYSTAL_ADJ  
REG_VCO_CAL  
0x24  
VCO Calibration  
Reg Power Control  
Carrier Detect  
0x26  
REG_PWR_CTL  
0x2E  
REG_CARRIER_DETECT  
REG_CLOCK_MANUAL  
REG_CLOCK_ENABLE  
REG_SYN_LOCK_CNT  
REG_MID  
0x2F  
page 21  
page 21  
page 21  
page 21  
page 21  
Clock Manual  
0x32  
Clock Enable  
0x33  
Synthesizer Lock Count  
Manufacturing ID  
0x38  
0x3C–0x3F  
Notes  
1. Register not applicable to CYWUSB6932.  
2. All registers are accessed Little Endian.  
Document 38-16007 Rev. *J  
Page 7 of 33  
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CYWUSB6934  
CYWUSB6932  
Table 4. Revision ID Register  
Addr: 0x00  
REG_ID  
Default: 0x07  
7
6
5
4
3
2
1
0
Silicon ID  
Product ID  
Bit  
7:4  
3:0  
Name  
Silicon ID  
Product ID These are the Product ID revision bits. Fixed at value 0111. These bits are read-only.  
Description  
These are the Silicon ID revision bits. 0000 = Rev A, 0001 = Rev B, etc. These bits are read-only.  
Table 5. Control  
Addr: 0x03  
REG_CONTROL  
Default: 0x00  
7
6
5
4
3
2
1
0
RX  
Enable  
TX  
Enable  
PN Code  
Select  
Bypass Internal Auto Internal  
Internal PA  
Enable  
Reserved  
Reserved  
Syn Lock Signal  
PA  
Disable  
Bit  
Name  
Description  
7
RX Enable  
The Receive Enable bit is used to place the IC in receive mode.  
1 = Receive Enabled  
0 = Receive Disabled  
6
5
TX Enable  
The Transmit Enable bit is used to place the IC in transmit mode.  
1 = Transmit Enabled  
0 = Transmit Disabled  
PN Code  
Select  
The Pseudo-Noise Code Select bit selects between the upper or lower half of the 64 chips/bit PN code.  
1 = 32 Most Significant Bits of PN code are used  
0 = 32 Least Significant Bits of PN code are used  
This bit applies only when the Code Width bit is set to 32 chips/bit PN codes (Reg 0x04, bit 2=1).  
4
BypassInternal This bit controls whether the state machine waits for the internal Syn Lock Signal before waiting for the amount  
Syn Lock  
Signal  
of time specified in the Syn Lock Count register (Reg 0x38), in units of 2 μs. If the internal Syn Lock Signal is  
used then set Syn Lock Count to 25 to provide additional assurance that the synthesizer has settled.  
1 = Bypass the Internal Syn Lock Signal and wait the amount of time in Syn Lock Count register (Reg 0x38)  
0 = Wait for the Syn Lock Signal and then wait the amount of time specified in Syn Lock Count register (Reg  
0x38)  
It is recommended that the application MCU sets this bit to 1 in order to guarantee a consistent settle time for  
the synthesizer.  
3
2
Auto Internal  
PA Disable  
The Auto Internal PA Disable bit is used to determine the method of controlling the Internal Power Amplifier.  
The two options are automatic control by the baseband or by firmware through register writes. For external PA  
usage, please see the description of the REG_ANALOG_CTL register (Reg 0x20).  
1 = Register controlled Internal PA Enable  
0 = Auto controlled Internal PA Enable  
When this bit is set to 1, the enabled state of the Internal PA is directly controlled by bit Internal PA Enable  
(Reg 0x03, bit 2). It is recommended that this bit is set to 0, leaving the PA control to the baseband.  
Internal PA  
Enable  
The Internal PA Enable bit is used to enable or disable the Internal Power Amplifier.  
1 = Internal Power Amplifier Enabled  
0 = Internal Power Amplifier Disabled  
This bit only applies when the Auto Internal PA Disable bit is selected (Reg 0x03, bit 3=1), otherwise this bit is  
don’t care.  
1
0
Reserved  
Reserved  
This bit is reserved and should be written with a zero.  
This bit is reserved and should be written with a zero.  
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Table 6. Data Rate  
Addr: 0x04  
REG_DATA_RATE  
Default: 0x00  
7
6
5
4
3
2
1
0
Reserved  
Code Width  
Data Rate  
Sample Rate  
Bit  
Name  
Description  
7:3 Reserved  
These bits are reserved and should be written with zeroes.  
2[3] Code Width The Code Width bit is used to select between 32 chips/bit and 64 chips/bit PN codes.  
1 = 32 chips/bit PN codes  
0 = 64 chips/bit PN codes  
The number of chips/bit used impacts a number of factors such as data throughput, range and robustness to  
interference. By choosing a 32 chips/bit PN-code, the data throughput can be doubled or even quadrupled (when  
double data rate is set). A 64 chips/bit PN code offers improved range over its 32 chips/bit counterpart as well  
as more robustness to interference. By selecting to use a 32 chips/bit PN code a number of other register bits  
are impacted and need to be addressed. These are PN Code Select (Reg 0x03, bit 5), Data Rate (Reg 0x04, bit  
1), and Sample Rate (Reg 0x04, bit 0).  
1[3] Data Rate  
The Data Rate bit allows the user to select Double Data Rate mode of operation which delivers a raw data rate  
of 62.5 kbits/sec.  
1 = Double Data Rate - 2 bits per PN code (No odd bit transmissions)  
0 = Normal Data Rate - 1 bit per PN code  
This bit is applicable only when using 32 chips/bit PN codes which can be selected by setting the Code Width  
bit (Reg 0x04, bit 2=1). When using Double Data Rate, the raw data throughput is 62.5 kbits/sec because every  
32 chips/bit PN code is interpreted as 2 bits of data. When using this mode a single 64 chips/bit PN code is  
placed in the PN code register. This 64 chips/bit PN code is then split into two and used by the baseband to offer  
the Double Data Rate capability. When using Normal Data Rate, the raw data throughput is 32kbits/sec.  
Additionally, Normal Data Rate enables the user to potentially correlate data using two differing 32 chips/bit PN  
codes.  
0[3] Sample Rate The Sample Rate bit allows the use of the 12x sampling when using 32 chips/bit PN codes and Normal Data Rate.  
1 = 12x Oversampling  
0 = 6x Oversampling  
Using 12xoversampling improves the correlators receive sensitivity. When using 64 chips/bit PN codesor Double  
Data Rate this bit is don’t care. The only time when 12x oversampling can be selected is when a 32 chips/bit PN  
code is being used with Normal Data Rate.  
Table 7. Configuration  
Addr: 0x05  
REG_CONFIG  
Default: 0x01  
7
6
5
4
3
2
1
0
Reserved  
IRQ Pin Select  
Bit  
Name  
Description  
These bits are reserved and should be written with zeroes.  
7:2 Reserved  
1:0 IRQ Pin Select The Interrupt Request Pin Select bits are used to determine the drive method of the IRQ pin.  
11 = Open Source (IRQ asserted = 1, IRQ deasserted = Hi-Z)  
10 = Open Drain (IRQ asserted = 0, IRQ deasserted = Hi-Z)  
01 = CMOS (IRQ asserted = 1, IRQ deasserted = 0)  
00 = CMOS Inverted (IRQ asserted = 0, IRQ deasserted = 1)  
Notes  
3. The following Reg 0x04, bits 2:0 values are not valid:  
001 – Not Valid  
010 – Not Valid  
011 – Not Valid  
111 – Not Valid.  
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Table 8. SERDES Control  
Addr: 0x06  
REG_SERDES_CTL  
Default: 0x03  
7
6
5
4
3
2
1
0
Reserved  
SERDES  
Enable  
EOF Length  
Bit  
Name  
Description  
7:4 Reserved  
These bits are reserved and should be written with zeroes.  
3
SERDES  
Enable  
The SERDES Enable bit is used to switch between bit-serial mode and SERDES mode.  
1 = SERDES enabled.  
0 = SERDES disabled, bit-serial mode enabled.  
When the SERDES is enabled data can be written to and read from the IC one byte at a time, through the  
use of the SERDES Data registers. The bit-serial mode requires bits to be written one bit at a time through  
the use of the DIO/DIOVAL pins, refer to section 3.2. It is recommended that SERDES mode be used to  
avoid the need to manage the timing required by the bit-serial mode.  
2:0 EOF Length  
The End of Frame Length bits are used to set the number of sequential bit times for an inter-frame gap  
without valid data before an EOF event will be generated. When in receive mode and a valid bit has been  
received the EOF event can then be identified by the number of bit times that expire without correlating any  
new data. The EOF event causes data to be moved to the proper SERDES Data Register and can also be  
used to generate interrupts. If 0 is the EOF length, an EOF condition will occur at the first invalid bit after a  
valid reception.  
Table 9. Receive SERDES Interrupt Enable  
Addr: 0x07  
REG_RX_INT_EN  
Default: 0x00  
7
6
5
4
3
2
1
0
Underflow B  
Overflow B  
EOF B  
Full B  
Underflow A  
Overflow A  
EOF A  
Full A  
Bit  
Name  
Description  
7
6
5
Underflow B The Underflow B bit is used to enable the interrupt associated with an underflow condition with the Receive  
SERDES Data B register (Reg 0x0B)  
1 = Underflow B interrupt enabled for Receive SERDES Data B  
0 = Underflow B interrupt disabled for Receive SERDES Data B  
An underflow condition occurs when attempting to read the Receive SERDES Data B register (Reg 0x0B) when  
it is empty.  
Overflow B  
EOF B  
The Overflow B bit is used to enable the interrupt associated with an overflow condition with the Receive  
SERDES Data B register (Reg 0x0B)  
1 = Overflow B interrupt enabled for Receive SERDES Data B  
0 = Overflow B interrupt disabled for Receive SERDES Data B  
An overflow condition occurs when new received data is written into the Receive SERDES Data B register (Reg  
0x0B) before the prior data is read out.  
The End of Frame B bit is used to enable the interrupt associated with the Channel B Receiver EOF condition.  
1 = EOF B interrupt enabled for Channel B Receiver.  
0 = EOF B interrupt disabled for Channel B Receiver.  
The EOF IRQ asserts during an End of Frame condition. End of Frame conditions occur after at least one bit  
has been detected, and then the number of invalid bits in the frame exceeds the number in the EOF length field.  
If 0 is the EOF length, and EOF condition will occur at the first invalid bit after a valid reception. This IRQ is  
cleared by reading the receive status register  
4
Full B  
The Full B bit is used to enable the interrupt associated with the Receive SERDES Data B register (Reg 0x0B)  
having data placed in it.  
1 = Full B interrupt enabled for Receive SERDES Data B  
0 = Full B interrupt disabled for Receive SERDES Data B  
A Full B condition occurs when data is transferred from the Channel B Receiver into the Receive SERDES Data  
B register (Reg 0x0B). This could occur when a complete byte is received or when an EOF event occurs whether  
or not a complete byte has been received.  
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Bit  
Name  
Description  
3
Underflow A The Underflow A bit is used to enable the interrupt associated with an underflow condition with the Receive  
SERDES Data A register (Reg 0x09)  
1 = Underflow A interrupt enabled for Receive SERDES Data A  
0 = Underflow A interrupt disabled for Receive SERDES Data A  
An underflow condition occurs when attempting to read the Receive SERDES Data A register (Reg 0x09) when  
it is empty.  
2
1
Overflow A  
EOF A  
The Overflow A bit is used to enable the interrupt associated with an overflow condition with the Receive  
SERDES Data A register (0x09)  
1 = Overflow A interrupt enabled for Receive SERDES Data A  
0 = Overflow A interrupt disabled for Receive SERDES Data A  
An overflow condition occurs when new receive data is written into the Receive SERDES Data A register (Reg  
0x09) before the prior data is read out.  
The End of Frame A bit is used to enable the interrupt associated with an End of Frame condition with the Channel  
A Receiver.  
1 = EOF A interrupt enabled for Channel A Receiver.  
0 = EOF A interrupt disabled for Channel A Receiver.  
The EOF IRQ asserts during an End of Frame condition. End of Frame conditions occur after at least one bit  
has been detected, and then the number of invalid bits in a frame exceeds the number in the EOF length field.  
If 0 is the EOF length, an EOF condition will occur at the first invalid bit after a valid reception. This IRQ is cleared  
by reading the receive status register.  
0
Full A  
The Full A bit is used to enable the interrupt associated with the Receive SERDES Data A register (0x09) having  
data written into it.  
1 = Full A interrupt enabled for Receive SERDES Data A  
0 = Full A interrupt disabled for Receive SERDES Data A  
A Full A condition occurs when data is transferred from the Channel A Receiver into the Receive SERDES Data  
A register (Reg 0x09). This could occur when a complete byte is received or when an EOF event occurs whether  
or not a complete byte has been received.  
Table 10. Receive SERDES Interrupt Status[4]  
Addr: 0x08  
REG_RX_INT_STAT  
Default: 0x00  
7
6
5
4
3
2
1
0
Valid B  
Flow Violation  
B
EOF B  
Full B  
Valid A  
Flow Violation  
A
EOF A  
Full A  
Bit  
Name  
Valid B  
Description  
7
The Valid B bit is true when all the bits in the Receive SERDES Data B register (Reg 0x0B) are valid.  
1 = All bits are valid for Receive SERDES Data B.  
0 = Not all bits are valid for Receive SERDES Data B.  
When data is written into the Receive SERDES Data B register (Reg 0x0B) this bit is set if all of the bits within  
the byte that has been written are valid. This bit cannot generate an interrupt.  
6
5
Flow Violation The Flow Violation B bit is used to signal whether an overflow or underflow condition has occurred for the  
B
Receive SERDES Data B register (Reg 0x0B).  
1 = Overflow/underflow interrupt pending for Receive SERDES Data B.  
0 = No overflow/underflow interrupt pending for Receive SERDES Data B.  
Overflow conditions occur when the radio loads new data into the Receive SERDES Data B register (Reg  
0x0B) before the prior data has been read. Underflow conditions occur when trying to read the Receive  
SERDES Data B register (Reg 0x0B) when the register is empty. This bit is cleared by reading the Receive  
Interrupt Status register (Reg 0x08)  
EOF B  
The End of Frame B bit is used to signal whether an EOF event has occurred on the Channel B receive.  
1 = EOF interrupt pending for Channel B.  
0 = No EOF interrupt pending for Channel B.  
An EOF condition occurs for the Channel B Receiver when receive has begun and then the number of bit  
times specified in the SERDES Control register (Reg 0x06) elapse without any valid bits being received. This  
bit is cleared by reading the Receive Interrupt Status register (Reg 0x08)  
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Bit  
Name  
Full B  
Description  
4
The Full B bit is used to signal when the Receive SERDES Data B register (Reg 0x0B) is filled with data.  
1 = Receive SERDES Data B full interrupt pending.  
0 = No Receive SERDES Data B full interrupt pending.  
A Full B condition occurs when data is transferred from the Channel B Receiver into the Receive SERDES  
Data B register (Reg 0x0B). This could occur when a complete byte is received or when an EOF event occurs  
whether or not a complete byte has been received.  
3
2
Valid A  
The Valid A bit is true when all of the bits in the Receive SERDES Data A Register (Reg 0x09) are valid.  
1 = All bits are valid for Receive SERDES Data A.  
0 = Not all bits are valid for Receive SERDES Data A.  
When data is written into the Receive SERDES Data A register (Reg 0x09) this bit is set if all of the bits within  
the byte that has been written are valid. This bit cannot generate an interrupt.  
Flow Violation The Flow Violation A bit is used to signal whether an overflow or underflow condition has occurred for the  
A
Receive SERDES Data A register (Reg 0x09).  
1 = Overflow/underflow interrupt pending for Receive SERDES Data A.  
0 = No overflow/underflow interrupt pending for Receive SERDES Data A.  
Overflow conditions occur when the radio loads new data into the Receive SERDES Data A register (Reg  
0x09) before the prior data has been read. Underflow conditions occur when trying to read the Receive  
SERDES Data A register (Reg 0x09) when the register is empty. This bit is cleared by reading the Receive  
Interrupt Status register (Reg 0x08)  
1
0
EOF A  
Full A  
The End of Frame A bit is used to signal whether an EOF event has occurred on the Channel A receive.  
1 = EOF interrupt pending for Channel A.  
0 = No EOF interrupt pending for Channel A.  
An EOF condition occurs for the Channel A Receiver when receive has begun and then the number of bit  
times specified in the SERDES Control register (0x06) elapse without any valid bits being received. This bit  
is cleared by reading the Receive Interrupt Status register (Reg 0x08).  
The Full A bit is used to signal when the Receive SERDES Data A register (Reg 0x09) is filled with data.  
1 = Receive SERDES Data A full interrupt pending.  
0 = No Receive SERDES Data A full interrupt pending.  
A Full A condition occurs when data is transferred from the Channel A Receiver into the Receive SERDES  
Data A Register (Reg 0x09). This could occur when a complete byte is received or when an EOF event occurs  
whether or not a complete byte has been received.  
Note  
4. All status bits are set and readable in the registers regardless of IRQ enable status. This allows a polling scheme to be implemented without enabling IRQs. The status  
bits are affected by TX Enable and RX Enable (Reg 0x03, bits 7:6). For example, the receive status will read 0 if the IC is not in receive mode. These registers are  
read-only.  
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Table 11. Receive SERDES Data A  
Addr: 0x09  
REG_RX_DATA_A  
Default: 0x00  
7
6
5
4
3
2
1
0
Data  
Bit Name  
Description  
7:0 Data  
Received Data for Channel A. The over-the-air received order is bit 0 followed by bit 1, followed by bit 2, followed by  
bit 3, followed by bit 4, followed by bit 5, followed by bit 6, followed by bit 7. This register is read-only.  
Table 12. Receive SERDES Valid A  
Addr: 0x0A  
REG_RX_VALID_A  
Default: 0x00  
7
6
5
4
3
2
1
0
Valid  
Bit Name  
Description  
7:0 Valid  
These bits indicate which of the bits in the Receive SERDES Data A register (Reg 0x09) are valid. A “1” indicates that  
the corresponding data bit is valid for Channel A.  
If the Valid Data bit is set in the Receive Interrupt Status register (Reg 0x08) all eight bits in the Receive SERDES  
Data A register (Reg 0x0A) are valid. Therefore, it is not necessary to read the Receive SERDES Valid A register (Reg  
0x0C). This register is read-only.  
Figure 9. Receive SERDES Data B  
Addr: 0x0B  
REG_RX_DATA_B  
Default: 0x00  
7
6
5
4
3
2
1
0
Data  
Bit Name  
Description  
7:0 Data  
Received Data for Channel B. The over-the-air received order is bit 0 followed by bit 1, followed by bit 2, followed by  
bit 3, followed by bit 4, followed by bit 5, followed by bit 6, followed by bit 7. This register is read-only.  
Table 13. Receive SERDES Valid B  
Addr: 0x0C  
REG_RX_VALID_B  
Default: 0x00  
7
6
5
4
3
2
1
0
Valid  
Bit Name  
Description  
7:0 Valid These bits indicate which of the bits in the Receive SERDES Data B register (Reg 0x0B) are valid. A “1” indicates that  
the corresponding data bit is valid for Channel B.  
If the Valid Data bit is set in the Receive Interrupt Status register (0x08) all eight bits in the Receive SERDES Data B  
register (Reg 0x0B) are valid. Therefore, it is not necessary to read the Receive SERDES Valid B register (Reg 0x0C).  
This register is read-only.  
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Table 14. Transmit SERDES Interrupt Enable  
Addr: 0x0D  
REG_TX_INT_EN  
Default: 0x00  
7
6
5
4
3
2
1
0
Reserved  
Underflow  
Overflow  
Done  
Empty  
Bit  
Name  
Description  
7:4 Reserved These bits are reserved and should be written with zeroes.  
3
Underflow The Underflow bit is used to enable the interrupt associated with an underflow condition associated with the  
Transmit SERDES Data register (Reg 0x0F)  
1 = Underflow interrupt enabled.  
0 = Underflow interrupt disabled.  
An underflow condition occurs when attempting to transmit while the Transmit SERDES Data register (Reg 0x0F)  
does not have any data.  
2
Overflow  
The Overflow bit is used to enabled the interrupt associated with an overflow condition with the Transmit SERDES  
Data register (0x0F).  
1 = Overflow interrupt enabled.  
0 = Overflow interrupt disabled.  
An overflow condition occurs when attempting to write new data to the Transmit SERDES Data register (Reg  
0x0F) before the preceding data has been transferred to the transmit shift register.  
1
0
Done  
The Done bit is used to enable the interrupt that signals the end of the transmission of data.  
1 = Done interrupt enabled.  
0 = Done interrupt disabled.  
The Done condition occurs when the Transmit SERDES Data register (Reg 0x0F) has transmitted all of its data  
and there is no more data for it to transmit.  
Empty  
The Empty bit is used to enable the interrupt that signals when the Transmit SERDES register (Reg 0x0F) is empty.  
1 = Empty interrupt enabled.  
0 = Empty interrupt disabled.  
The Empty condition occurs when the Transmit SERDES Data register (Reg 0x0F) is loaded into the transmit  
buffer and it's safe to load the next byte  
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Table 15. Transmit SERDES Interrupt Status[5]  
Addr: 0x0E  
REG_TX_INT_STAT  
Default: 0x00  
7
6
5
4
3
2
1
0
Reserved  
Underflow  
Overflow  
Done  
Empty  
Bit  
Name  
Description  
7:4 Reserved These bits are reserved. This register is read-only.  
3
Underflow The Underflow bit is used to signal when an underflow condition associated with the Transmit SERDES Data register  
(Reg 0x0F) has occurred.  
1 = Underflow Interrupt pending.  
0 = No Underflow Interrupt pending.  
This IRQ will assert during an underflow condition to the Transmit SERDES Data register (Reg 0x0F). An underflow  
occurs when the transmitter is ready to sample transmit data, but there is no data ready in the Transmit SERDES  
Data register (Reg 0x0F). This will only assert after the transmitter has transmitted at least one bit. This bit is cleared  
by reading the Transmit Interrupt Status register (Reg 0x0E).  
2
Overflow The Overflow bit is used to signal when an overflow condition associated with the Transmit SERDES Data register  
(0x0F) has occurred.  
1 = Overflow Interrupt pending.  
0 = No Overflow Interrupt pending.  
This IRQ will assert during an overflow condition to the Transmit SERDES Data register (Reg 0x0F). An overflow  
occurs when the new data is loaded into the Transmit SERDES Data register (Reg 0x0F) before the previous data  
has been sent. This bit is cleared by reading the Transmit Interrupt Status register (Reg 0x0E).  
1
0
Done  
The Done bit is used to signal the end of a data transmission.  
1 = Done Interrupt pending.  
0 = No Done Interrupt pending.  
This IRQ will assert when the data is finished sending a byte of data and there is no more data to be sent. This will  
only assert after the transmitter has transmitted as least one bit. This bit is cleared by reading the Transmit Interrupt  
Status register (Reg 0x0E)  
Empty  
The Empty bit is used to signal when the Transmit SERDES Data register (Reg 0x0F) has been emptied.  
1 = Empty Interrupt pending.  
0 = No Empty Interrupt pending.  
This IRQ will assert when the transmit serdes is empty. When this IRQ is asserted it is ok to write to the Transmit  
SERDES Data register (Reg 0x0F). Writing the Transmit SERDES Data register (Reg 0x0F) will clear this IRQ. It  
will be set when the data is loaded into the transmitter, and it is ok to write new data.  
Note  
5. All status bits are set and readable in the registers regardless of IRQ enable status. This allows a polling scheme to be implemented without enabling IRQs. The status  
bits are affected by the TX Enable and RX Enable (Reg 0x03, bits 7:6). For example, the transmit status will read 0 if the IC is not in transmit mode. These registers  
are read-only.  
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Table 16. Transmit SERDES Data  
Addr: 0x0F  
REG_TX_DATA  
Default: 0x00  
7
6
5
4
3
2
1
0
Data  
Bit Name  
Description  
7:0 Data Transmit Data. The over-the-air transmitted order is bit 0 followed by bit 1, followed by bit 2, followed by bit 3, followed  
by bit 4, followed by bit 5, followed by bit 6, followed by bit 7.  
Table 17. Transmit SERDES Valid  
Addr: 0x10  
REG_TX_VALID  
Default: 0x00  
7
6
5
4
3
2
1
0
Valid  
Bit Name  
Description  
7:0 Valid[6] The Valid bits are used to determine which of the bits in the Transmit SERDES Data register (reg 0x0F) are valid.  
1 = Valid transmit bit.  
0 = Invalid transmit bit.  
Table 18. PN Code  
Default:  
0x1E8B6A3DE0E9B222  
REG_PN_CODE  
Addr: 0x11-18  
63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32  
Address 0x18 Address 0x17 Address 0x16 Address 0x15  
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10  
9
8
7
6
5
4
3
2
1
0
Address 0x14  
Address 0x13  
Address 0x12  
Address 0x11  
Bit  
Name  
Description  
63:0 PN Codes The value inside the 8 byte PN code register is used as the spreading code for DSSS communication. All 8 bytes  
can be used together for 64 chips/bit PN code communication, or the registers can be split into two sets of 32  
chips/bit PN codes and these can be used alone or with each other to accomplish faster data rates. Not any 64  
chips/bit value can be used as a PN code as there are certain characteristics that are needed to minimize the  
possibility of multiple PN codes interfering with each other or the possibility of invalid correlation. The over-the-air  
order is bit 0 followed by bit 1... followed by bit 62, followed by bit 63.  
Note  
6. The Valid bit in the Transmit SERDES Valid register (Reg 0x10) is used to mark whether the radio will send data or preamble during that bit time of the data byte. Data  
is sent LSB first. The SERDES will continue to send data until there are no more VALID bits in the shifter. For example, writing 0x0F to the Transmit SERDES Valid  
register (Reg 0x10) will send half a byte.  
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Table 19. Threshold Low  
Addr: 0x19  
REG_THRESHOLD_L  
Default: 0x08  
7
6
5
4
3
2
1
0
Reserved  
Threshold Low  
Bit  
Name  
Reserved  
Description  
7
This bit is reserved and should be written with zero.  
6:0 Threshold Low The Threshold Low value is used to determine the number of missed chips allowed when attempting to  
correlate a single data bit of value ‘0’. A perfect reception of a data bit of ‘0’ with a 64 chips/bit PN code would  
result in zero correlation matches, meaning the exact inverse of the PN code has been received. By setting  
the Threshold Low value to 0x08 for example, up to eight chips can be erroneous while still identifying the  
value of the received data bit. This value along with the Threshold High value determine the correlator count  
values for logic ‘1’ and logic ‘0’. The threshold values used determine the sensitivity of the receiver to  
interference and the dependability of the received data. By allowing a minimal number of erroneous chips  
the dependability of the received data increases while the robustness to interference decreases. On the  
other hand increasing the maximum number of missed chips means reduced data integrity but increased  
robustness to interference and increased range.  
Table 20. Threshold High  
Addr: 0x1A  
REG_THRESHOLD_H  
Default: 0x38  
7
6
5
4
3
2
1
0
Reserved  
Threshold High  
Bit  
Name  
Reserved  
Description  
7
This bit is reserved and should be written with zero.  
6:0  
Threshold High The Threshold High value is used to determine the number of matched chips allowed when attempting to  
correlate a single data bit of value ‘1’. A perfect reception of a data bit of ‘1’ with a 64 chips/bit or a 32 chips/bit  
PN code would result in 64 chips/bit or 32 chips/bit correlation matches, respectively, meaning every bit was  
received perfectly. By setting the Threshold High value to 0x38 (64-8) for example, up to eight chips can be  
erroneous while still identifying the value of the received data bit. This value along with the Threshold Low  
value determine the correlator count values for logic ‘1’ and logic ‘0’. The threshold values used determine  
the sensitivity of the receiver to interference and the dependability of the received data. By allowing a minimal  
number of erroneous chips the dependability of the received data increases while the robustness to inter-  
ference decreases. On the other hand increasing the maximum number of missed chips means reduced  
data integrity but increased robustness to interference and increased range.  
Table 21. Wake Enable  
Addr: 0x1C  
REG_WAKE_EN  
Default: 0x00  
7
6
5
4
3
2
1
0
Reserved  
Wakeup  
Enable  
Bit  
Name  
Description  
7:1 Reserved  
These bits are reserved and should be written with zeroes.  
0
Wakeup Enable Wakeup interrupt enable.  
0 = disabled  
1 = enabled  
A wakeup event is triggered when the PD pin is deasserted and once the IC is ready to receive SPI commu-  
nications.  
Document 38-16007 Rev. *J  
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CYWUSB6932  
Table 22. Wake Status  
Addr: 0x1D  
REG_WAKE_STAT  
Default: 0x01  
1 0  
7
6
5
4
3
2
Reserved  
Wakeup Status  
Bit  
Name  
Description  
7:1 Reserved  
These bits are reserved. This register is read-only.  
0
Wakeup Status Wakeup status.  
0 = Wake interrupt not pending  
1 = Wake interrupt pending  
This IRQ will assert when a wakeup condition occurs. This bit is cleared by reading the Wake Status register  
(Reg 0x1D). This register is read-only.  
Table 23. Analog Control  
Addr: 0x20  
REG_ANALOG_CTL  
Default: 0x00  
7
6
5
4
3
2
1
0
Reserved  
Reg Write  
Control  
MID Read  
Enable  
Reserved  
Reserved  
PA Output  
Enable  
PA Invert  
Reset  
Bit  
Name  
Reserved  
Description  
This bit is reserved and should be written with zero.  
7
6
Reg Write Control Enables write access to Reg 0x2E and Reg 0x2F.  
1 = Enables write access to Reg 0x2E and Reg 0x2F  
0 = Reg 0x2E and Reg 0x2F are read-only  
5
MID Read Enable The MID Read Enable bit must be set to read the contents of the Manufacturing ID register (Reg 0x3C-0x3F).  
Enabling the Manufacturing ID register (Reg 0x3C-0x3F) consumes power. This bit should only be set when  
reading the contents of the Manufacturing ID register (Reg 0x3C-0x3F).  
1 = Enables read of MID registers  
0 = Disables read of MID registers  
4:3 Reserved  
These bits are reserved and should be written with zeroes.  
2
1
0
PA Output Enable The Power Amplifier Output Enable bit is used to enable the PACTL pin for control of an external power  
amplifier.  
1 = PA Control Output Enabled on PACTL pin  
0 = PA Control Output Disabled on PACTL pin  
PA Invert  
Reset  
The Power Amplifier Invert bit is used to specify the polarity of the PACTL signal when the PA Output Enable  
bit is set high. PA Output Enable and PA Invert cannot be simultaneously changed.  
1 = PACTL active low  
0 = PACTL active high  
The Reset bit is used to generate a self-clearing device reset.  
1 = Device Reset. All registers are restored to their default values.  
0 = No Device Reset.  
Document 38-16007 Rev. *J  
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CYWUSB6932  
Table 24. Channel  
Addr: 0x21  
REG_CHANNEL  
Default: 0x00  
7
6
5
4
3
2
1
0
Reserved  
Channel  
Bit  
Name  
Description  
7
Reserved This bit is reserved and should be written with zero.  
6:0 Channel The Channel register (Reg 0x21) is used to determine the Synthesizer frequency. A value of 2 corresponds to a  
communication frequency of 2.402 GHz, while a value of 79 corresponds to a frequency of 2.479GHz. The channels  
are separated from each other by 1 MHz intervals.  
Limit application usage to channels 2-79 to adhere to FCC regulations. FCC regulations require that channels 0 and  
1 and any channel greater than 79 be avoided. Use of other channels may be restricted by other regulatory agencies.  
The application MCU must ensure that this register is modified before transmitting data over the air for the first time.  
Table 25. Receive Signal Strength Indicator (RSSI)[7]  
Addr: 0x22  
REG_RSSI  
Default: 0x00  
7
6
5
4
3
2
1
0
Reserved  
Valid  
RSSI  
Bit  
Name  
Description  
7:6 Reserved These bits are reserved. This register is read-only.  
5
Valid  
The Valid bit indicates whether the RSSI value in bits [4:0] are valid. This register is Read Only.  
1 = RSSI value is valid  
0 = RSSI value is invalid  
4:0 RSSI  
The Receive Strength Signal Indicator (RSSI) value indicates the strength of the received signal. This is a read  
only value with the higher values indicating stronger received signals meaning more reliable transmissions.  
Table 26. PA Bias  
Addr: 0x23  
REG_PA  
Default: 0x00  
7
6
5
4
3
2
1
0
Reserved  
PA Bias  
Bit  
Name  
Description  
7:3 Reserved These bits are reserved and should be written with zeroes.  
2:0 PA Bias  
The Power Amplifier Bias (PA Bias) bits are used to set the transmit power of the IC through increasing (values up  
to 7) or decreasing (values down to 0) the gain of the on-chip Power Amplifier. The higher the register value the  
higher the transmit power. By changing the PA Bias value signal strength management functions can be accom-  
plished. For general purpose communication a value of 7 is recommended.  
Note  
7. The RSSI will collect a single value each time the part is put into receive mode via Control register (Reg 0x03, bit 7=1). See Section for more details.  
Document 38-16007 Rev. *J  
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CYWUSB6932  
Table 27. Crystal Adjust  
Addr: 0x24  
REG_CRYSTAL_ADJ  
Default: 0x00  
7
6
5
4
3
2
1
0
Reserved  
Clock Output  
Disable  
Crystal Adjust  
Bit  
Name  
Description  
This bit is reserved and should be written with zero.  
7
6
Reserved  
Clock Output  
Disable  
The Clock Output Disable bit disables the 13 MHz clock driven on the X13OUT pin.  
1 = No 13-MHz clock driven externally.  
0 = 13-MHz clock driven externally.  
If the 13-MHz clock is driven on the X13OUT pin then receive sensitivity will be reduced by –4 dBm on  
channels 5+13n. By default the 13-MHz clock output pin is enabled. This pin is useful for adjusting the  
13-MHz clock, but it interfere with every 13th channel beginning with 2.405GHz channel. Therefore, it is  
recommended that the 13-MHz clock output pin be disabled when not in use.  
5:0 Crystal Adjust  
The Crystal Adjust value is used to calibrate the on-chip parallel load capacitance supplied to the crystal.  
Each increment of the Crystal Adjust value typically adds 0.135 pF of parallel load capacitance. The total  
range is 8.5 pF, starting at 8.65 pF. These numbers do not include PCB parasitics, which can add an  
additional 1–2 pF.  
Table 28. VCO Calibration  
Addr: 0x26  
REG_VCO_CAL  
Default: 0x00  
7
6
5
4
3
2
1
0
VCO Slope Enable  
Reserved  
Bit  
Name  
Description  
7:6 VCO Slope Enable The Voltage Controlled Oscillator (VCO) Slope Enable bits are used to specify the amount of variance  
(Write-Only)  
automatically added to the VCO.  
11 = –5/+5 VCO adjust. The application MCU must configure this option during initialization.  
10 = –2/+3 VCO adjust.  
01 = Reserved.  
00 = No VCO adjust.  
These bits are undefined for read operations.  
5:0 Reserved  
These bits are reserved and should be written with zeroes.  
Table 29. Reg Power Control  
Addr: 0x2E  
REG_PWR_CTL  
Default: 0x00  
7
6
5
4
3
2
1
0
Reg Power  
Control  
Reserved  
Bit  
Name  
Description  
7
Reg Power When set, this bit disables unused circuitry and saves radio power. The user must set Reg 0x20, bit 6=1 to enable  
Control  
writes to Reg 0x2E. The application MCU must set this bit during initialization.  
6:0 Reserved  
These bits are reserved and should be written with zeroes.  
Document 38-16007 Rev. *J  
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Table 30. Carrier Detect  
Addr: 0x2F  
REG_CARRIER_DETECT  
Default: 0x00  
7
6
5
4
3
2
1
0
Carrier Detect  
Override  
Reserved  
Bit  
Name  
Description  
7
Carrier Detect Override When set, this bit overrides carrier detect. The user must set Reg 0x20, bit 6=1 to enable writes to  
Reg 0x2F.  
6:0 Reserved  
These bits are reserved and should be written with zeroes.  
Table 31. Clock Manual  
Addr: 0x32  
REG_CLOCK_MANUAL  
Default: 0x00  
7
6
5
4
3
2
1
0
Manual Clock Overrides  
Bit  
7:0  
Name  
Description  
Manual Clock Overrides This register must be written with 0x41 after reset for correct operation  
Table 32. Clock Enable  
Addr: 0x33  
REG_CLOCK_ENABLE  
Default: 0x00  
7
6
5
4
3
2
1
0
Manual Clock Enables  
Bit  
Name  
Description  
This register must be written with 0x41 after reset for correct operation  
7:0 Manual Clock  
Enables  
Table 33. Synthesizer Lock Count  
Addr: 0x38  
REG_SYN_LOCK_CNT  
Default: 0x64  
7
6
5
4
3
2
1
0
Count  
Bit Name  
Description  
7:0 Count Determines the length of delay in 2µs increments for the synthesizer to lock when auto synthesizer is enabled via  
Control register (0x03, bit 1=0) and not using the PLL lock signal. The default register setting is typically sufficient.  
Table 34. Manufacturing ID  
Addr: 0x3C-3F  
REG_MID  
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10  
9
8
7
6
5
4
3
2
1
0
Address 0x3F  
Address 0x3E  
Address 0x3D  
Address 0x3C  
Bit  
Name  
Description  
31:30 Address[31:3 These bits are read back as zeroes.  
0]  
29:0  
Address[29:0] These bits are the Manufacturing ID (MID) for each IC. The contents of these bits cannot be read unless  
the MID Read Enable bit (bit 5) is set in the Analog Control register (Reg 0x20). Enabling the Manufacturing  
ID register (Reg 0x3C-0x3F) consumes power. The MID Read Enable bit in the Analog Control register (Reg  
0x20, bit 5) should only be set when reading the contents of the Manufacturing ID register (Reg 0x3C-0x3F).  
This register is read-only.  
Document 38-16007 Rev. *J  
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Pin Definitions  
Table 35. Pin Description Table for the CYWUSB6932/CYWUSB6934  
Pin QFN  
Name  
RFIN  
Type  
Input  
Default  
Description  
46  
5
Input RF Input. Modulated RF signal received (CYWUSB6934 only).  
RFOUT  
X13  
Output  
Input  
N/A  
N/A  
N/A  
RF Output. Modulated RF signal to be transmitted.  
Crystal Input. (refer to Section ).  
38  
35  
26  
33  
X13IN  
X13OUT  
PD  
Input  
Crystal Input. (refer to Section ).  
Output/Hi-Z Output System Clock. Buffered 13-MHz system clock.  
Input  
N/A  
Power Down. Asserting this input (low), will put the  
CYWUSB6932/CYWUSB6934 in the Suspend Mode (X13OUT is 0 when PD is  
low).  
14  
34  
20  
19  
21  
23  
24  
25  
22  
RESET  
PACTL  
DIO  
Input  
I/O  
N/A  
Active LOW Reset. Device reset.  
Input PACTL. External Power Amplifier control. Pull-down or make output.  
Input Data Input/Output. SERDES Bypass Mode Data Transmit/Receive.  
Input Data I/O Valid. SERDES Bypass Mode Data Transmit/Receive Valid.  
I/O  
DIOVAL  
IRQ  
I/O  
Output /Hi-Z Output IRQ. Interrupt and SERDES Bypass Mode DIOCLK.  
MOSI  
MISO  
SCK  
Input  
Output/Hi-Z  
Input  
N/A  
Hi-Z  
N/A  
N/A  
H
Master-Output-Slave-Input Data. SPI data input pin.  
Master-Input-Slave-Output Data. SPI data output pin.  
SPI Input Clock. SPI clock.  
SS  
Input  
Slave Select Enable. SPI enable.  
VCC  
VCC  
VCC = 2.7V to 3.6V.  
6, 9, 16, 28,  
29, 32, 41,  
42, 44, 45  
Ground = 0V.  
13  
GND  
NC  
GND  
N/A  
L
N/A  
Must be tied to Ground.  
1, 2, 3, 4, 7,  
8, 10, 11,  
12, 15, 17,  
18, 27, 30,  
31, 36, 37,  
39, 40, 43,  
47, 48  
L
Must be tied to Ground.  
Exposed GND  
Paddle  
GND  
Document 38-16007 Rev. *J  
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Figure 10. CYWUSB6934/CYWUSB6932, 48 QFN – Top View  
CYWUSB6934/CYWUSB6932  
Top View*  
NC  
NC  
1
2
3
4
5
6
7
8
9
36 NC  
35 X13IN  
34 PACTL  
33 PD  
NC  
NC  
RFOUT  
VCC  
32 VCC  
31 NC  
CYWUSB6934/CYWUSB6932  
48 QFN  
NC  
30 NC  
NC  
VCC  
29  
VCC  
28 VCC  
NC 10  
NC 11  
NC 12  
27 NC  
26 X13OUT  
25 SCK  
* E-PAD BOTTOMSIDE  
** CYWUSB6934 Only  
Document 38-16007 Rev. *J  
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CYWUSB6932  
Absolute Maximum Ratings  
Storage Temperature.................................. –65°C to +150°C  
Ambient Temperature with Power Applied.. –55°C to +125°C  
Supply Voltage on VCC relative to VSS ..........–0.3V to +3.9V  
DC Voltage to Logic Inputs[8].................. –0.3V to VCC +0.3V  
DC Voltage applied to  
Outputs in High-Z State .......................... –0.3V to VCC +0.3V  
Static Discharge Voltage (Digital)[9] ...........................>2000V  
Static Discharge Voltage (RF)[9] ................................... 500V  
Latch-up Current......................................+200 mA, –200 mA  
Operating Conditions  
VCC (Supply Voltage)..........................................2.7V to 3.6V  
TA (Ambient Temperature Under Bias) ............. 0°C to +70°C  
Ground Voltage.................................................................. 0V  
FOSC (Oscillator or Crystal Frequency)....... 13 MHz ±50 ppm  
DC Characteristics (Over the Operating Range)  
Table 36. DC Parameters  
Parameter  
Description  
Conditions  
Min.  
Typ.[11] Max.  
Unit  
V
VCC  
VOH1  
VOH2  
VOL  
VIH  
Supply Voltage  
2.7  
3.0  
VCC  
3.0  
3.6  
Output High Voltage condition 1  
Output High Voltage condition 2  
Output Low Voltage  
At IOH = –100.0 µA VCC – 0.1  
V
At IOH = –2.0 mA  
At IOL = 2.0 mA  
2.4  
V
0.0  
0.4  
V
[10]  
Input High Voltage  
2.0  
–0.3  
–1  
VCC  
V
VIL  
Input Low Voltage  
0.8  
+1  
V
IIL  
Input Leakage Current  
0 < VIN < VCC  
0.26  
3.5  
µA  
pF  
µA  
mA  
mA  
mA  
mA  
mA  
mA  
mA  
CIN  
Pin Input Capacitance (except X13, X13IN, RFIN)  
10  
10[14]  
ISleep  
Current consumption during power-down mode PD = LOW  
0.24  
3
IDLE ICC  
Current consumption without synthesizer  
ICC from PD high to oscillator stable.  
Average transmitter current consumption[12]  
Average transmitter current consumption[13]  
Current consumption during receive  
PD = HIGH  
STARTUP ICC  
TX AVG ICC1  
TX AVG ICC2  
RX ICC (PEAK)  
TX ICC (PEAK)  
1.8  
no handshake  
5.9  
with handshaking  
8.1  
57.7  
69.1  
28.7  
Current consumption during transmit  
SYNTH SETTLE ICC Current consumption with Synthesizer on, No  
Transmit or Receive  
Notes  
8. It is permissible to connect voltages above Vcc to inputs through a series resistor limiting input current to 1 mA. This can’t be done during power down mode. AC  
timing not guaranteed.  
9. Human Body Model (HBM).  
10. It is permissible to connect voltages above Vcc to inputs through a series resistor limiting input current to 1 mA.  
11. Typ. values measured with V = 3.0V @ 25°C  
CC  
12. Average Icc when transmitting a 5-byte packet (3 data bytes + 2 bytes of protocol) every 10 ms using the WirelessUSB LS 1-way protocol.  
13. Average Icc when transmitting a 5-byte packet (3 data bytes + 2 bytes of protocol) every 10 ms using the WirelessUSB LS 2-way protocol.  
14. Max. value measured with V = 3.3V  
CC  
Document 38-16007 Rev. *J  
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AC Characteristics[15]  
Table 37. SPI Interface[17]  
Parameter  
Description  
Min.  
476  
Typ.  
Max.  
Unit  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
tSCK_CYC  
tSCK_HI (BURST READ)  
tSCK_HI  
SPI Clock Period  
[16]  
SPI Clock High Time  
SPI Clock High Time  
SPI Clock Low Time  
238  
158  
tSCK_LO  
158  
tDAT_SU  
SPI Input Data Set-up Time  
SPI Input Data Hold Time  
SPI Output Data Valid Time  
10  
tDAT_HLD  
tDAT_VAL  
tSS_SU  
97[17]  
77[17]  
174[17]  
SPI Slave Select Set-up Time before first positive edge of SCK[18] 250  
tSS_HLD  
SPI Slave Select Hold Time after last negative edge of SCK  
80  
Figure 11. SPI Timing Diagram  
tSCK_CYC  
tSCK_HI  
tSCK_LO  
SCK  
SS  
tSS_SU  
tSS_HLD  
tDAT_SU  
tDAT_HLD  
data from m cu  
data from m cu  
data from m cu  
data to m cu  
data  
data  
M O SI  
M ISO  
tDAT_VAL  
data to m cu  
Figure 12. SPI Burst Read Every 9th SCK HI Stretch Timing Diagram  
tSCK_CYC  
tSCK_HI  
every 8th SCK_HI  
tSCK_LO  
tSCK_HI (BURST READ)  
every 9th SCK_HI  
every 10th SCK_HI  
SCK  
SS  
data to mcu  
data to mcu  
data to mcu  
data  
MISO  
tDAT_VAL  
Notes  
15. AC values are not guaranteed if voltages on any pin exceed Vcc.  
16. This stretch only applies to every 9th SCK HI pulse for SPI Burst Reads only.  
17. For F = 13 MHz ±50 ppm, 3.3v @ 25°C.  
OSC  
18. SCK must start low, otherwise the success of SPI transactions are not guaranteed.  
Document 38-16007 Rev. *J  
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Table 38. DIO Interface  
Parameter  
Transmit  
Description  
Min.  
2.1  
2.1  
0
Typ.  
Max.  
Unit  
µs  
µs  
µs  
µs  
µs  
µs  
µs  
µs  
µs  
µs  
Unit  
µs  
µs  
µs  
µs  
µs  
µs  
µs  
µs  
µs  
µs  
µs  
µs  
tTX_DIOVAL_SU  
tTX_DIO_SU  
DIOVAL Set-up Time  
DIO Set-up Time  
DIOVAL Hold Time  
DIO Hold Time  
tTX_DIOVAL_HLD  
tTX_DIO_HLD  
tTX_IRQ_HI  
0
Minimum IRQ High Time - 32 chips/bit DDR  
Minimum IRQ High Time - 32 chips/bit  
Minimum IRQ High Time - 64 chips/bit  
Minimum IRQ Low Time - 32 chips/bit DDR  
Minimum IRQ Low Time - 32 chips/bit  
Minimum IRQ Low Time - 64 chips/bit  
8
16  
32  
8
tTX_IRQ_LO  
16  
32  
Typ.  
Receive  
Min.  
–0.01  
–0.01  
–0.01  
–0.01  
–0.01  
–0.01  
Max.  
6.1  
tRX_DIOVAL_VLD  
DIOVAL Valid Time - 32 chips/bit DDR  
DIOVAL Valid Time - 32 chips/bit  
8.2  
DIOVAL Valid Time - 64 chips/bit  
16.1  
6.1  
tRX_DIO_VLD  
tRX_IRQ_HI  
tRX_IRQ_LO  
DIO Valid Time - 32 chips/bit DDR  
DIO Valid Time - 32 chips/bit  
8.2  
DIO Valid Time - 64 chips/bit  
16.1  
Minimum IRQ High Time - 32 chips/bit DDR  
Minimum IRQ High Time - 32 chips/bit  
Minimum IRQ High Time - 64 chips/bit  
Minimum IRQ Low Time - 32 chips/bit DDR  
Minimum IRQ Low Time - 32 chips/bit  
Minimum IRQ Low Time - 64 chips/bit  
1
1
1
8
16  
32  
Figure 13. DIO Receive Timing Diagram  
tRX_IRQ _HI  
tRX_IRQ _LO  
IRQ  
DIO /  
data  
data  
data  
DIO VAL  
tRX_DIO _VLD  
tRX_DIO VAL_VLD  
Figure 14. DIO Transmit Timing Diagram  
tTX_IRQ_HI  
tTX_IRQ_LO  
IRQ  
DIO/  
data  
data  
DIOVAL  
tTX_DIO_SU  
tTX_DIOVAL_SU  
tTX_DIO_HLD  
tTX_DIOVAL_HLD  
Document 38-16007 Rev. *J  
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Radio Parameters  
Table 39. Radio Parameters  
Parameter Description  
RF Frequency Range  
Conditions  
Min.  
Typ.  
Max. Unit  
[19]  
2.400  
2.483 GHz  
–3  
Radio Receiver (T = 25°C, V = 3.3V, fosc = 13.000 MHz, X13OUT off, 64 chips/bit, Threshold Low = 8, Threshold High = 56, BER < 10  
)
CC  
Sensitivity  
–90  
–10  
dBm  
dBm  
Maximum Received Signal  
RSSI value for PWRin > –40 dBm  
RSSI value for PWRin < –95 dBm  
Receive Ready[20]  
–20  
28–31  
0–10  
35  
µs  
Interference Performance  
Co-channel Interference rejection  
Carrier-to-Interference (C/I)  
C = –60 dBm  
11  
dB  
Adjacent (1 MHz) channel selectivity C/I 1 MHz  
Adjacent (2 MHz) channel selectivity C/I 2 MHz  
Adjacent (> 3 MHz) channel selectivity C/I > 3 MHz  
Image[21] Frequency Interference, C/I Image  
C = –60 dBm  
C = –60 dBm  
C = –67 dBm  
C = –67 dBm  
C = –67 dBm  
3
dB  
dB  
dB  
dB  
dB  
–30  
–40  
–20  
–25  
Adjacent (1 MHz) interference to in-band image  
frequency, C/I image ±1 MHz  
Out-of-Band Blocking Interference Signal Frequency  
30 MHz – 2399 MHz, except (FO/N & FO/N±1 MHz)[22] C = –67 dBm  
–30  
–20  
–39  
dBm  
dBm  
dBm  
[22]  
2498 MHz – 12.75 GHz, except (FO*N & FO*N±1 MHz)  
Intermodulation  
C = –67 dBm  
C = –64 dBm, Δf = 5,10 MHz  
Spurious Emission  
30 MHz–1 GHz  
–57  
–54  
–40[23] dBm  
dBm  
dBm  
1 GHz–12.75 GHz except (4.8 GHz - 5.0 GHz)  
4.8 GHz–5.0 GHz  
Radio Transmitter (T = 25°C, V = 3.3V, fosc = 13.000 MHz)  
CC  
Maximum RF Transmit Power  
RF Power Control Range  
RF Power Range Control Step Size  
Frequency Deviation  
PA = 7  
0
dBm  
dB  
30  
seven steps, monotonic  
4.3  
dB  
PN Code Pattern 10101010  
PN Code Pattern 11110000  
270  
320  
±125  
kHz  
kHz  
ns  
Frequency Deviation  
Zero Crossing Error  
Occupied Bandwidth  
100-kHz resolution bandwidth, –6 dBc 500  
kHz  
kHz  
Initial Frequency Offset  
In-band Spurious  
±75  
Second Channel Power (±2 MHz)  
> Third Channel Power (>3 MHz)  
Non-Harmonically Related Spurs  
30 MHz–12.75 GHz  
–30  
–40  
dBm  
dBm  
–54  
dBm  
Harmonic Spurs  
Second Harmonic  
–28  
–25  
–42  
dBm  
dBm  
dBm  
Third Harmonic  
Fourth and Greater Harmonics  
Notes  
19. Subject to regulation.  
20. Max. time after receive enable and the synthesizer has settled before receiver is ready.  
21. Image frequency is +4 MHz from desired channel (2 MHz low IF, high side injection).  
22. FO = Tuned Frequency, N = Integer.  
23. Antenna matching network and antenna will attenuate the output signal at these frequencies to meet regulatory requirements.  
Document 38-16007 Rev. *J  
Page 27 of 33  
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CYWUSB6934  
CYWUSB6932  
Power Management Timing  
[28]  
Table 40. Power Management Timing (The values below are dependent upon oscillator network component selection)  
Parameter  
tPDN_X13  
tSPI_RDY  
tPWR_RST  
tRST  
Description  
Time from PD deassert to X13OUT  
Time from oscillator stable to start of SPI transactions  
Power On to RESET deasserted  
Conditions  
Min.  
Typ  
Max.  
Unit  
µs  
µs  
µs  
µs  
µs  
µs  
µs  
ns  
µs  
µs  
µs  
2000  
1
VCC @ 2.7V  
1300  
1
Minimum RESET asserted pulse width  
Power On to PD deasserted[24]  
PD deassert to clocks running[25]  
tPWR_PD  
tWAKE  
1300  
2000  
tPD  
Minimum PD asserted pulse width  
PD assert to low power mode  
PD deassert to IRQ[26] assert (wake interrupt)[27]  
10  
tSLEEP  
50  
tWAKE_INT  
tSTABLE  
tSTABLE2  
2000  
2100  
2100  
PD deassert to clock stable  
to within ±10 ppm  
to within ±10 ppm  
IRQ assert (wake interrupt) to clock stable  
Figure 15. Power On Reset/Reset Timing  
tSPI_RDY  
tPDN_X13  
X13OUT  
VCC  
tPW R_RST  
tPW R_PD  
tRST  
RESET  
PD  
Figure 16. Sleep / Wake Timing  
tWAKE  
X13OUT  
PD  
tPD  
tSTABLE  
tSTABLE2  
tSLEEP  
tWAKE_INT  
IRQ  
Notes  
24. The PD pin must be asserted at power up to ensure proper crystal startup.  
25. When X13OUT is enabled.  
26. Both the polarity and the drive method of the IRQ pin are programmable. See page 9 for more details. Figure 16 illustrates default values for the Configuration register  
(Reg 0x05, bits 1:0).  
27. A wakeup event is triggered when the PD pin is deasserted. Figure 16 illustrates a wakeup event configured to trigger an IRQ pin event via the Wake Enable register  
(Reg 0x1C, bit 0=1).  
28. Measured with CTS ATXN6077A crystal.  
Document 38-16007 Rev. *J  
Page 28 of 33  
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CYWUSB6934  
CYWUSB6932  
Figure 17. AC Test Loads and Waveforms for Digital Pins  
AC Test Loads  
OUTPUT  
DC Test Load  
OUTPUT  
R1  
V
CC  
5 pF  
30 pF  
OUTPUT  
INCLUDING  
JIG AND  
SCOPE  
INCLUDING  
JIG AND  
SCOPE  
R2  
Max  
Typical  
ALL INPUT PULSES  
V
Parameter  
R1  
Unit  
Ω
Ω
Ω
V
CC  
90%  
10%  
90%  
10%  
1071  
GND  
R2  
937  
500  
1.4  
Fall time: 1 V/ns  
RTH  
Rise time: 1 V/ns  
VTH  
THÉ  
Equivalent to:  
OUTPUT  
VENIN EQUIVALENT  
VCC  
3.00  
V
R
TH  
V
TH  
Ordering Information  
Table 41. Ordering Information  
Part Number  
Radio  
Package Name  
Package Type  
Operating Range  
CYWUSB6932-48LFXC Transmitter  
CYWUSB6934-48LFXC Transceiver  
CYWUSB6934-48LTXC Transceiver  
48QFN (Punched) 48 Quad Flat Package No Leads Lead-Free  
48QFN (Punched) 48 Quad Flat Package No Leads Lead-Free  
Commercial  
Commercial  
Commercial  
48QFN (Sawn)  
48 Quad Flat Package No Leads Lead-Free  
Document 38-16007 Rev. *J  
Page 29 of 33  
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CYWUSB6934  
CYWUSB6932  
Package Description  
Figure 18. 48-pin Lead-Free QFN 7 x 7 mm LY48 (Punched)  
51-85152 *C  
The recommended dimension of the PCB pad size for the E-PAD underneath the QFN is 209 mils × 209 mils (width x length).  
Document 38-16007 Rev. *J  
Page 30 of 33  
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CYWUSB6934  
CYWUSB6932  
Figure 19. 48-pin QFN 7 x 7 x 1.0 mm LT48C (Sawn)  
001-53698 **  
Document 38-16007 Rev. *J  
Page 31 of 33  
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CYWUSB6934  
CYWUSB6932  
Document History Page  
Document Title: CYWUSB6932/CYWUSB6934 WirelessUSB™ LS 2.4 GHz DSSS Radio SoC  
Document Number: 38-16007  
Orig. of  
Change  
Submission  
Date  
Revision  
ECN  
Description of Change  
**  
123907  
125470  
127076  
LXA  
XGR  
KKU  
01/20/03  
04/28/03  
07/30/03  
New data sheet  
*A  
*B  
Preliminary release  
Updated pinouts, timing diagrams, AC Test loads, DC Characteristics, Radio  
Characteristics  
Removed die  
*C  
*D  
128886  
129180  
KKV  
TGE  
08/04/03  
12/04/03  
Minor change: removed table of contents and fixed layout of section 10.  
Updated AC and DC characteristics from char. results  
Updated register entries  
Changed package type from 56-pin QFN to 48-pin QFN  
Updated all pinouts and timing diagrams  
Updated block diagram and functional description  
Updated application interfaces  
Added Interrupt descriptions  
*E  
*F  
131851  
241471  
TGE  
ZTK  
12/15/03  
See ECN  
Changed Static Discharge Voltage (Digital) Specification of Section  
Removed Static Discharge Voltage (Digital) Specification of Section footnote  
Updated REG_DATA_RATE (0x04), 111—Not Valid  
Swapped bit field descriptions of REG_CONFIG  
Corrected Logic Block Diagram – CYWUSB6932/CYWUSB6934 and Figure 8  
Minor edits throughout  
*G  
284810  
ZTK  
See ECN  
Removed SOIC package option  
Updated ordering information section  
Added Table 1 Internal PA Output Power Step Table  
Added tSTABLE2 Parameter to Table 40 and Figure 16  
Corrected Figure 18 caption  
Corrected Figure 8 to show QFN matching network  
Removed Addr 0x01 and 0x02 - unused  
Updated Figure 10  
Updated Spurious Emissions parameters  
*H  
335758  
TGE  
See ECN  
Corrected Figure 8 - swap RFIN / RFOUT  
Corrected REG_CONTROL - bit 1 description  
Added Table 36 footnote 14 - Max. value measured with Vcc = 3.3V  
*I  
391306  
TGE  
DPT  
See ECN  
09/29/09  
Added receive ready parameter to Table 39  
*J  
2770967  
Added 48QFN package diagram (Sawn)  
Saw Marketing part number in ordering information.  
Updated package diagram for spec 51-85152  
Document 38-16007 Rev. *J  
Page 32 of 33  
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CYWUSB6934  
CYWUSB6932  
Sales, Solutions, and Legal Information  
Worldwide Sales and Design Support  
Cypress maintains a worldwide network of offices, solution centers, manufacturer’s representatives, and distributors. To find the office  
closest to you, visit us at cypress.com/sales.  
Products  
PSoC  
psoc.cypress.com  
clocks.cypress.com  
wireless.cypress.com  
memory.cypress.com  
image.cypress.com  
Clocks & Buffers  
Wireless  
Memories  
Image Sensors  
© Cypress Semiconductor Corporation, 2003-2009. The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the use of  
any circuitry other than circuitry embodied in a Cypress product. Nor does it convey or imply any license under patent or other rights. Cypress products are not warranted nor intended to be used for  
medical, life support, life saving, critical control or safety applications, unless pursuant to an express written agreement with Cypress. Furthermore, Cypress does not authorize its products for use as  
critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress products in life-support systems  
application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges.  
Any Source Code (software and/or firmware) is owned by Cypress Semiconductor Corporation (Cypress) and is protected by and subject to worldwide patent protection (United States and foreign),  
United States copyright laws and international treaty provisions. Cypress hereby grants to licensee a personal, non-exclusive, non-transferable license to copy, use, modify, create derivative works of,  
and compile the Cypress Source Code and derivative works for the sole purpose of creating custom software and or firmware in support of licensee product to be used only in conjunction with a Cypress  
integrated circuit as specified in the applicable agreement. Any reproduction, modification, translation, compilation, or representation of this Source Code except as specified above is prohibited without  
the express written permission of Cypress.  
Disclaimer: CYPRESS MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES  
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Cypress reserves the right to make changes without further notice to the materials described herein. Cypress does not  
assume any liability arising out of the application or use of any product or circuit described herein. Cypress does not authorize its products for use as critical components in life-support systems where  
a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress’ product in a life-support systems application implies that the manufacturer  
assumes all risk of such use and in doing so indemnifies Cypress against all charges.  
Use may be limited by and subject to the applicable Cypress software license agreement.  
Document 38-16007 Rev. *J  
Revised October 1, 2009  
Page 33 of 33  
All products and company names mentioned in this document may be the trademarks of their respective holders.  
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