Product Specs

6. Pin Description
Pin No. Pin Name Description Pad Type
1
GND
Ground connection
2
GND
Ground connection
3
GND
Ground connection
4
GPIO_3
General_purpose I/O
5
VDD_IO
VDDIO
6
3P3V
MAIN POWER
7
UART_RTS
UART request to send output
8
GND
Ground connection
9
GND
Ground connection
10
UART_TX
UART transmit data
11
UART_CTS
UART clear to send input
12 UART_RX UART receive data
13
BT_HOST_WAKE
General_purpose I/O
14
BT_CLK_REQ
General_purpose I/O
15 GPIO_4 PUART_TX General_purpose I/O, PUART_TX
16
GND
Ground connection
17
GND
Ground connection
18
BT_DEV_WAKE
General_purpose I/O
19
PCM_SYNC
General_purpose I/O
20
I2C_SDA
PCM_IN
General_purpose I/O
21 PCM_CLK PUART_RX General_purpose I/O, PUART_RX
22 GPIO_6 General_purpose I/O
23
I2C_SCL
PCM_OUT
General_purpose I/O