3.2.4.3 PIOC Bank
The PIOC bank is mainly used for RPi, and JTAG interface over power rails VDDIN33 and VDDSDMMC2. The following schematic shows the PIOC bank distribution.
The following table describes each PIOC bank function.
| PIO | Power Rail | Function | Signal Description |
|---|---|---|---|
|
PC0 |
VDDIN33 |
RPI_GPCLK2 |
RPI GPCLK2 signal/USBA CC2 (not connected by default, R121 DNP) |
|
PC1 |
VDDIN33 |
GMAC0_INT |
SODIMM interrupt line |
|
PC2 |
VDDIN33 |
MCP16502_INT |
MCP16502 interrupt line |
|
PC3 |
VDDIN33 |
RPI_GPIO17 |
RPI GPIO17 signal |
|
PC4 |
VDDIN33 |
RPI_GPIO27 |
RPI GPIO27 signal |
|
PC5 |
VDDIN33 |
MBUS1_AN |
mikroBUS1 analog input |
|
PC6 |
VDDIN33 |
FLEXCOM0_IO1 |
LVDS/MIPI/MBUS1/MBUS2/RPI/M.2 TWCK |
|
PC7 |
VDDIN33 |
FLEXCOM0_IO0 |
LVDS/MIPI/MBUS1/MBUS2/RPI/M.2 TWD |
|
PC8 |
VDDIN33 |
USBA_VBUS_DETECT |
USBA VBUS detection |
|
PC9 |
VDDIN33 |
MBUS_nRST |
mikroBUS1 and mikroBUS2 Reset signal |
|
PC10 |
VDDIN33 |
USER_BUTTON |
Board user button |
|
PC11 |
VDDIN33 |
RPI_GPIO25 |
RPI GPIO25 signal |
|
PC12 |
VDDIN33 |
RPI_GPIO24 |
RPI GPIO24 signal |
|
PC13 |
VDDIN33 |
MBUS2_AN |
mikroBUS2 analog input |
|
PC14 |
VDDIN33 |
RPI_I2S_DIN0 |
RPI I2S DIN0 signal |
|
PC15 |
VDDIN33 |
RPI_I2S_WS |
RPI I2S WS signal |
|
PC16 |
VDDIN33 |
RPI_I2S_CK |
RPI I2S Clock signal |
|
PC17 |
VDDIN33 |
RPI_I2S_DOUT0 |
RPI I2S DOUT0 signal |
|
PC18 |
VDDIN33 |
PC18 PIO |
USBB overcurrent detection/RPI GPIO16 signal (not connected by default, R104 DNP) |
|
PC19 |
VDDIN33 |
PC19 PIO |
USBC overcurrent detection/RPI GPIO26 signal (not connected by default, R109 DNP) |
|
PC20 |
VDDIN33 |
USBB_EN_5V |
USBB Enable signal |
|
PC21 |
VDDIN33 |
USBC_EN_5V |
USBC Enable signal |
|
PC22 |
VDDIN33 |
JTAG_NTRST |
JTAG NTRST signal |
|
PC23 |
VDDIN33 |
JTAG_TCK |
JTAG TCK signal |
|
PC24 |
VDDIN33 |
JTAG_TMS |
JTAG TMS signal |
|
PC25 |
VDDIN33 |
JTAG_TDI |
JTAG TDI signal |
|
PC26 |
VDDIN33 |
JTAG_TDO |
JTAG TDO signal |
|
PC27 |
VDDSDMMC2 |
PC27 PIO |
M.2 SDMMC CMD signal/M.2 SPI MOSI signal |
|
PC28 |
VDDSDMMC2 |
PC28 PIO |
M.2 SDMMC CMD signal/M.2 SPI MISO signal |
|
PC29 |
VDDSDMMC2 |
PC29 PIO |
M.2 SDMMC DAT0 signal/M.2 SPI clock signal |
|
PC30 |
VDDSDMMC2 |
SDMMC2_DAT1 |
M.2 SDMMC2 DAT1 signal |
|
PC31 |
VDDSDMMC2 |
SDMMC2_DAT2 |
M.2 SDMMC2 DAT2 signal |