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I/O: Difference between revisions
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Dan Docs information
m (→DMG mode) |
(Dan Docs information) |
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==DMG mode==
*$FF00 - Joypad
*$FF01 - Serial transfer (also used in the Turbo File GB's communication protocol)
*$FF02 - Serial control (also used in the Mobile GB Adapter (64KB/s, bits 0 and 1 high), and the DMG-07 4-Player Adapter for "ping" packets)
*$FF04 - Divider
*$FF05 - Timer counter
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**HDMA dest low
**HDMA count
*$FF56 - Infrared port RP Register (infrared is also used with the Pokémon Pikachu 2 virtual pet, Pocket Sakura, Full Changer)
**Bit 0: Is the Game Boy Color's infrared light on/off? (read/write)
**Bit 1: Infrared signal (0=receiving it, 1=normal/no signal) (read only)
**Bit 2-5: Unknown/unused?
**Bit 6-7: Enable signal read? (0=disable, 3=enable) (read/write). It is also capable of resetting bit 1 to 0 when disabled and re-enabled under certain conditions.
*$FF68-$FF69 - BG/OBJ palettes
**$FF68 - Bg pal sel
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