3.4.8 Xplained PRO Extension Header
The PIC32CXMTSH-DB hosts a dual-row, 20-pin male connector (J20) to interface with standard Xplained PRO extension boards. The Xplained PRO connector is Microchip’s proprietary interface port intended to connect different evaluation platforms from AVR and Arm microcontrollers. Refer to Table 3-11 for more information about the connector.
The power header, J19, can be used as supply for extension boards. Refer to Table 3-10 for more information about the connector.
| Pin No | Signal | PIO | Pin No | Signal | PIO |
|---|---|---|---|---|---|
| 1 | — | — | 2 | GND | GND |
| 3 | ADC+ | PA30 | 4 | ADC- | PB1 |
| 5 | GPIO1 | PA18 | 6 | GPIO2 | PA20 |
| 7 | PWM+ | PD3 | 8 | PWM- | PD16 |
| 9 | IRQ/GPIO | PA3 | 10 | SS/GPIO | PA2 |
| 11 | TWD | PA16 | 12 | TWCK | PA17 |
| 13 | RXD | PA13 | 14 | TXD | PA12 |
| 15 | SS | PA11 | 16 | MOSI | PA8 |
| 17 | MISO | PA9 | 18 | SCK | PA10 |
| 19 | GND | GND | 20 | VCC | 3V3 |
The Xplained PRO connector allows the connection of a wide range of modules. Typically, electricity meters require communications capabilities, which could be added by connecting RF or PLC modules, such as the ATREB215-XPRO or PL460-EK kits from Microchip.