User's Manual

XR-50B WIFI module
Copyright © 2019 ShenzhenJiXinInteligence Co., Ltd All Rights Reserved
Page 9 of 17
24
MIC2+
MIC2+
25
MIC2-
MIC2-
26
PA7
UART1_TX;SPI1_CS2;TWI0_SDA;CSI_D7;WUPIO3;EINTA7
27
GND
Ground
28
PA6
UART1_RX;SPI1_CS1;TWI0_SCL;CSI_D6;WUPIO2;EINTA6
29
PA5
UART1_CTS;SD_DATA3;TWI0_SDA;CSI_D5;WUPIO1;EINTA5
30
PA4
UART1_RTS;SD_DATA2;TWI0_SCL;CSI_D4;WUPIO0;EINTA7
31
PA11
ADC_CH1;PWM3/ECT3;DMIC_DATA;CSI_VSYNC;EINTA11
32
PA10
ADC_CH0;PWM2/ECT2;DMIC_CLK;CSI_HSYNC;EINTA10
33
PA9
FEM_CTRL2;PWM1/ECT1;TWI1_SDA;CSI_MCLK;EINTA9
34
PA8
FEM_CTRL1;PWM0/ECT0;TWI1_SCL;CSI_PCLK;EINTA8
35
PA16
ADC_CH6;IR_RX ;I2S_LRCLK;UART1_RTS;EINTA16
36
GND
Ground
37
PA15
ADC_CH5;PWM7/ECT7;I2S_DO; UART1_CTS;EINTA15
38
PA14
ADC_CH4 ；PWM6/ECT6 ；I2S_DI ；UART1_RX;EINTA14
39
RST
Reset
40
VCC
Power supply input，2.7~5.5V