Specifications

Wi-linktechCommunicationTechnologies(Shanghai)Co.,Ltd
3.2 Pin definition
The PIN
#
Pin name type describe
1 GND GND Module to Ground
2 VCC The POWER 1.8v-4.3v power supply, typical value 3.3v
3 MIC_BIAS Analog Output MIC BIAS output
4 MIC_P Analog Input Microphone input
5 MIC_N Analog Input Common mode voltage
6 AOUTP Analog Output
Speaker output positive
7 AOUTN Analog Output
Speaker output negative
8 PD7 The I/O
SDA1/I2SDIN/PWM1/SSPDIN/UTXD0/UTXD1/ANTCTL1
/PD MDAT/PWM0/ADC3
9 PD6 The I/O
SCL1/I2SDOUT/PWM0/SSPDOUT/URXD0/URXD1/CL
KOUT/ PDMCLK/PWM1/ADC2
10 PC6 The I/O
SCL1/I2SDOUT/PWM4/SSPDOUT/URXD0/URXD1/SWT
CK/ PDMCLK/PWM5
11 RST
Analog Input
Reset resets the feet
12 PA3 The I/O
SDA1/I2SDIN/PWM3/SSPDIN/UTXD0/UTXD1/ANTCTL1
/PD MDAT/PWM
13 PA2 The I/O
SCL1/I2SDOUT/PWM2/SSPDOUT/URXD0/URXD1/ANTC
TL0 /PDMCLK/PWM3
14 PA1
The I/O
SDA0/I2SFRM/PWM1/SSPCSN/UTXD0/UTXD1/ANTCTL
0/P DMDAT/PWM0
15 PA0
The I/O
SCL0/I2SCLK/PWM0/SSPCLK/URXD0/URXD1/CLKOUT/
PD MCLK/PWM1
16 PA7
The I/O
SDA1/I2SDIN/PWM1/SSPDIN/UTXD0/UTXD1/ANTCTL0
/PD MDAT/PWM0
17 PA6 The I/O
SCL1/I2SDOUT/PWM0/SSPDOUT/URXD0/URXD1/CLKO
UT/ PDMCLK/PWM1
18 RFT
Analog Output
External RF antenna leads out
19 PD5 The I/O
SDA0/I2SFRM/PWM5/SSPCSN/UTXD0/UTXD1/ANTCTL
0/P DMDAT/PWM4/ADC1
20 PD4
The I/O
SCL0/I2SCLK/PWM4/SSPCLK/URXD0/URXD1/ANTCTL0
/PD MCLK/PWM5/ADC0
21 PC7
The I/O
SDA1/I2SDIN/PWM5/SSPDIN/UTXD0/UTXD1/SWDIO/P
D MDAT/PWM4
2019.09
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