3.10 XPRO Header (J203)
The PIC32 WFI32E Curiosity Board provides the XPRO header (J203) to have a pin-to-pin compatibility for XPRO boards. The following table provides details of the XPRO header pins:
| Pin Number | Pin on XPRO Header | Pin Description of XPRO Header | Pin on WFI32E01 Module(1)(2) |
|---|---|---|---|
| J203-1 | ID(4) | Communication line to the ID chip on an extension board | PTA_BT_PRIO/RPK6/RK6 |
| J203-2 | GND | Ground | GND |
| J203-3 |
ADC(+) | Analog-to-Digital converter, alternatively positive part of differential ADC | TMS/AN6/CVD6/CVDR6/CVDT1/RPB6/RB6 |
| J203-4 |
ADC(-) | Analog-to-Digital converter, alternatively negative part of differential ADC | AN14/ANN0/CVD14/CVDR14/RPA14/RA14 |
| J203-5 | GPIO1 | General purpose I/O | ANA0/RPB12/RB12 |
| J203-6 | GPIO2 | General purpose I/O | PTA_BT_PRIO/RPK6/RK6 |
| J203-7 | PWM(+) | Pulse width modulation, alternatively positive part of differential PWM | TCK/PGC4/AN8/CVD8/CVDR8/RPB8/RB8 |
| J203-8 | PWM(-) | Pulse width modulation, alternatively negative part of differential PWM |
ANN1/CVD15/CVDR15/RPA13/RA13 |
| J203-9 | IRQ/GPIO(5) | Interrupt request line and/or general purpose I/O | AN17/CVD17/CVDR17/INT0/RPA10/RA10 |
| J203-10 | SPI_SS_B/GPIO | Client select for SPI and/or general purpose I/O(6) |
USBID/AN2/CVD2/CVDR2/CVDT5/RPB2/RB2 |
| J203-11 |
I2C_SDA | Data line for I2C interface | SDA1/RPA5/RA5 |
| J203-12 |
I2C_SCL | Clock line for I2C interface | SCL1/RPA4/RA4 |
| J203-13 | UART_RX | Receiver line of target device UART | TDI/PGD4/AN9/CVD9/CVDR9/RPB9/RB9 |
| J203-14 | UART_TX | Transmitter line of target device UART | PTA_BT_ACTIVE/RPK7/RK7 |
| J203-15 | SPI_SS_A | Client select for SPI. This pin must be preferably unique(6) | TDO/AN7/CVD7/CVDR7/CVDT0/RPB7/RB7 |
| J203-16 |
SPI_MOSI | Host-out, client-in line of serial peripheral interface(6) | BT_CLK_OUT/RPK4/RK4 |
| J203-17 | SPI_MISO | Host-in, client-out line of serial peripheral interface(6) | PTA_WLAN_ACTIVE/RPK5/RK5 |
| J203-18 | SPI_SCK | Clock for serial peripheral interface | SCK2/RPA11/RA11 |
| J203-19 | GND | Ground | GND |
| J203-20 | VCC | Power for extension board | NC |
Note:
- These are PPS pins that can be configured for any of the supported peripheral functions based on the end user application.
- For more details on the WFI32E01 pins and PTA signals, refer to the PIC32MZ W1 MCU and WFI32 Module with Wi-Fi® and Hardware-Based Security Accelerator Data Sheet (DS70005425).
- If using the AC243009 daughter board, the maximum frequency limit of the SPI2 interface is 12.5 MHz but the WFI32E01 Module can operate up to 20 MHz
- A jumper must be mounted on the (J210) connector to use the ID feature.
- A jumper must be mounted on the (J211) connector pin2 and pin3 to use this feature.
- Traditional Serial Communication Interface Documentation uses the terminology “Master” and “Slave”. The equivalent Microchip terminology used in this document is “Host” and “Client”, respectively.
- The user must not use XPRO-based touch boards and on-board temperature sensor (U204) simultaneously.