GPIO Registers

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MMIO Interfaces

Name Physical address
SceGpio0Reg 0xE20A0000
SceGpio1Reg 0xE0100000

Registers

Offset Size Description
0x00 4 Port mode (1=out, 0=in) (1 bit each port)
0x04 4 Port read (1=low, 0=high?) (1 bit each port)
0x08 4 Port set (1 bit each port)
0x0C 4 Port clear (1 bit each port)
0x14 4 Interrupt mode (2 bits) for interrupts 0-15
0x18 4 Interrupt mode (2 bits) for interrupts 16-31
0x34 4 Port read latched? (1=low, 0=high?) (1 bit each port)

Gpio0 ports

Bit Description
6 Game card LED
7 PS Button Blue LED