GPIO Peripheral Interface

Use the SYSTEM_GPIO_0_IO_CTRL or SYSTEM_GPIO_1_IO_CTRL parameter to reference the GPIO interface.

Table 1. GPIO PortsWhere n is 0 or 1, and where BIT can be configured to as 1, 2, 4, 8, or 16 bits.

Port	Direction	Description
system_gpio_n_io_read[BIT-1:0]	Input	GPIO input.
system_gpio_n_io_write[BIT-1:0]	Output	GPIO output.
system_gpio_n_io_writeEnable[BIT-1:0]	Output	GPIO output enable.

Table 2. GPIO Register Map

Address Offset	Register Name	Privilege	Width
0x0000_0000	Input	Read	32
0x0000_0004	Output	Read/Write	32
0x0000_0008	Output Enable	Read/Write	32
0x0000_0020	Interrupt Rise Enable	Read/Write	32
0x0000_0024	Interrupt Fall Enable	Read/Write	32
0x0000_0028	Interrupt High Enable	Read/Write	32
0x0000_002C	Interrupt Low Enable	Read/Write	32