Data Sheet

Page 13
25 NC
—
No connect
26 NC
—
No connect
27 PCM_SYNC
I/O PCM sync signal
28 PCM_IN I PCM DATA INPUT
29 PCM_OUT I PCM DATA OUTPUT
30 PCM_CLK I/O PCM CLK
31 LPO
—
No connect
32
GND
—
Ground connections
33 NC
—
No connect
34 VDDIO P I/O Voltage supply input 1.8V or 3.3V
35 NC
—
No connect
36 VCC P 3.3V INPUT
37 NC
—
No connect
38 BT_REG_ON
—
BT_EN(GPIO11)
39 GND
—
Ground connections
40 UART_TXD O
Bluetooth UART interface
41
UART_RXD
I
Bluetooth UART interface
42 UART_RTS_N O
Bluetooth UART interface
43 UART_CTS_N I
Bluetooth UART interface
44 SD_RESET
—
No connect
45 NC
—
No connect
46 GND
—
Ground connections
47 NC
—
No connect
48 GND
—
Ground connections
49 HOST_WAKE_BT
—
HOST_WAKE_BT(GPIO13)