User's Manual

21
SDIO_DATA_0
I/O
SDIO data line 0
22
SDIO_DATA_1
I/O
SDIO data line 1
23
GND
－
Ground connections
24
NC
－
No connect
25
VIN_LDO
P
Internal Buck voltage generation pin
26
VIN_LDO_OUT
P
Internal Buck voltage generation pin
27
PCM_SYNC
I/O
PCM sync signal
28
PCM_IN
I
PCM data input
29
PCM_OUT
O
PCM Data output
30
PCM_CLK
I/O
PCM clock
31
LPO
I
External Low Power Clock input (32.768KHz)
32
GND
－
Ground connections
33
NC
－
No connect
34
VDDIO
P
I/O Voltage supply input
35
NC
－
No connect
36
VBAT
P
Main power voltage source input
37
NC
－
No connect
38
BT_REG_ON
I
Low asserting reset for Bluetooth core
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
NC
－
No connect
45
NC
－
No connect
46
NC
－
No connect
47
NC
－
No connect
48
NC
－
No connect
49
BT_WAKE
I
HOST wake-up Bluetooth device
50
BT_HOST_WAKE
O
Bluetooth device to wake-up HOST
Dimensions