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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
|