CYW20702
Table 7. CYW20702 Signal Descriptions (Cont.)
WFBGA Pin
Power
Domain
Signal
I/O
Description
(50-Ball)
UART_RTS_N
E5
G7
I/O
I/O
VDDO
UART request to send output. Also mapped to the SPI
signal CS.
UART_CTS_N
VDDO
UART clear to send input. Also mapped to the SPI signal
SPI_CLK.
SCL
F7
E7
E8
G8
G6
F5
G5
C4
B6
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
VDDO
VDDO
VDDO
VDDO
VDDO
VDDO
VDDO
VDDO
VDDO
BSC clock. Also used for serial flash access (MISO).
BSC data. Also used for serial flash access (MOSI).
Serial flash SPI clock
SDA
SPIM_CLK
SPIM_CS_N
PCM_IN
PCM_OUT
PCM_CLK
PCM_SYNC
COEX_IN
USB
Serial flash active-low chip select
PCM/I2S data input
PCM/I2S data output
PCM/I2S clock
PCM sync/I2S word select
Coexistence input
HUSB_DP
HUSB_DN
Supplies
VDDIF
A8
A7
I/O
I/O
VDD_USB
VDD_USB
USB hub. If not used, connect to GND.
If not used, connect to GND.
B1
C1
E1
F1
G1
A6
F8
–
I
I
I
I
I
I
I
I
I
I
I
I
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Radio IF PLL supply
Radio PA supply
VDDTF
VDDLNA
VDDRF
VDDPX
VDDC
Radio LNA supply
Radio supply
Radio RF PLL supply
Core logic supply
VDDC
Core logic supply
VDDC
Core logic supply
VDDO
G4
A5
E6
C8
Digital I/O supply voltage
Digital I/O supply voltage
Digital I/O supply voltage
VDDO
VDDO
VDD_USB
USB transceiver supply voltage. If not used, connect to
GND.
VSS
VSS
VSS
VSS
C2
D2
F2
D3
–
–
–
–
N/A
N/A
N/A
N/A
Ground
Ground
Ground
Ground
Document Number: 002-14773 Rev. *L
Page 28 of 55
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