User Manual

8223A-SR
FN-LINK
TECHNOLOGY LIMITED 10 Proprietary & Confidential Information
17 SDIO_DA
TA_CLK I/O SDIO clock line
18 SDIO_DA
TA_0 I/O SDIO data line 0
19 SDIO_DA
TA_1 I/O SDIO data line 1
20 GND
－
Ground connections
21 NC
－
Floating (Don’t connected to ground)
22 VDDIO
P I/O Voltage supply input 1.8V or 3.3V
23 NC
－
Floating (Don’t connected to ground)
24 LPO I
External Low Power Clock input (32.768KHz)
25 PCM_OUT
O PCM Data output
26 PCM_CLK I/O PCM
clock
27 PCM_IN
I PCM data input
28 PCM_SYNC I/O PCM
sync signal
29 NC
－
Floating (Don’t connected to ground)
30 NC
－
Floating (Don’t connected to ground)
31 GND
－
Ground connections
32 NC
－
Floating (Don’t connected to ground)
33 GND
－
Ground connections
34 BT_EN I
Enable pin for Bluetooth device
ON: pull high ; OFF: pull low
35 NC
－
Floating (Don’t connected to ground)
36 GND
－
Ground connections
37 NC
－
Floating (Don’t connected to ground)
38 NC
－
Floating (Don’t connected to ground)
39 Debug_UAR
T_TXD O Floating (Don’t connected to ground)
40 Debug_UAR
T_RXD I Floating (Don’t connected to ground)
41 UAR
T_RTS_N O Bluetooth UART interface
42 UAR
T_TXD O Bluetooth UART interface
43 UAR
T_RXD I Bluetooth UART interface
44 UAR
T_CTS_N I Bluetooth UART interface