View source for Hardware/External Interface

{{Infobox MMIO
| ppc = Partial
| arm = Full
| base = 0x0d806800
| len = 0x80
| bits = 32
| ppcirq = 4
}}
{{hwstub}}
{{yagcd}}

The External Interface (EXI) is an interface to communicate with external devices like the Gamecube memory cards slots, which can be used for memory cards, usb gecko, sdgecko, or nintendo's waikiki's debug adaptor.

On the Wii, the PowerPC's reset vector (0xfff00000) is mapped to memory within the EXI while on the GameCube this was mapped to the IPL masked bootrom. Since there is no IPL in the Wii ROM, this memory is written to by [[IOS]] when it bootstraps the [[Broadway]].