3.2.6.3 PIOC Bank

The PIOC bank is mainly used for the UART and TWI interfaces, over power rail VDDIN33.

The following schematic shows the PIOC bank distribution.

Figure 3-17. SAMA7G5 PIOC Bank Distribution

The following table describes each PIOC bank function.

Table 3-7. SAMA7G5 PIOs Pin Assignment and Signal Description
PIO	Power Rail	Function	Signal Description
PC0	VDDSDMMC1	SDMMC1_DAT1	SD Card data line 1
PC1	VDDSDMMC1	SDMMC1_DAT2	SD Card data line 2
PC2	VDDSDMMC1	SDMMC1_DAT3	SD Card data line 3
PC3	VDDIN33	SDMMC1_WP	SD Card connector write protect signal
PC4	VDDIN33	SDMMC1_CD	SD Card card detect
PC5	VDDIN33	SDMMC1_1V8SEL	SD Card signal voltage selection
PC6	VDDIN33	PC6	Power enable USB host port C
PC7	VDDIN33	PC7	USB over-current interrupt port A
PC8	VDDIN33	PC8	Power measurement interrupt
PC9	VDDIN33	FLEXCOM1_IO0	TWI data line for MCP16502, PAC1934 devices
PC10	VDDIN33	FLEXCOM1_IO1	TWI clock line for MCP16502, PAC1934 devices
PC11	VDDIN33	PC11	Power enable USB host port B
PC12	VDDIN33	PC12	USB over-current interrupt port B
PC13	VDDIN33	FLEXCOM8_IO1	TWI clock line for ECC608, RPi CSI camera, EEPROM1 or EEPROM2 devices
PC14	VDDIN33	FLEXCOM8_IO0	TWI data line for ECC608, RPi CSI camera, EEPROM1 or EEPROM2 devices
PC15	VDDIN33	PC15	Standby control CAN 0
PC16	VDDIN33	PC16	Standby control CAN 1
PC17	VDDIN33	PC17	USB over-current interrupt port C
PC18	VDDIN33	FLEXCOM9_IO0	TWI data line for mikroBUS 1, mikroBUS 2 or RPi connector devices
PC19	VDDIN33	FLEXCOM9_IO1	TWI clock line for mikroBUS 1, mikroBUS 2 or RPi connector devices
PC20	VDDIN33	PC20	mikroBUS 2 interrupt
PC21	VDDIN33	PC21	mikroBUS 1 interrupt
PC22	VDDIN33	PC22	USB over-current interrupt port B
PC23	VDDIN33	FLEXCOM7_IO0	mikroBUS 2 UART TX line
PC24	VDDIN33	FLEXCOM7_IO1	mikroBUS 2 UART RX line
PC25	VDDIN33	NTRST	JTAG - Test reset signal
PC26	VDDIN33	TCK_SWCLK	JTAG - Test clock/serial wire clock
PC27	VDDIN33	TMS_SWDIO	JTAG - Test mode select/serial wire input/output
PC28	VDDIN33	TDI	JTAG - Test data in
PC29	VDDIN33	TDO	JTAG - Test data out
PC30	VDDIN33	FLEXCOM10_IO0	RPi connector UART TX line
PC31	VDDIN33	FLEXCOM10_IO1	RPi connector UART RX line