Editing Memory management controller (Nintendo) (section)

===MMC1===
[[File:Nintendo-NES-Tetris-Cartridge-Board.jpg|link=File:Nintendo-NES-Tetris-Cartridge-Board.jpg|thumb|right|A ''[[Tetris (NES video game)|Tetris]]'' cartridge showing an MMC1B1 chip]]
* Manufacturer: [[Nintendo]]
* Games: ''[[The Legend of Zelda (video game)|The Legend of Zelda]]'', ''[[Mega Man 2]]'', ''[[Metroid]]'', ''[[Godzilla: Monster of Monsters]]'', ''[[Teenage Mutant Ninja Turtles (NES video game)|Teenage Mutant Ninja Turtles]]'', and more.
The MMC1 is Nintendo's first custom MMC [[integrated circuit]] to incorporate support for saved games and multi-directional scrolling configurations.<ref name="np"/>{{rp|p.30}}
The chip comes in at least five different versions: ''MMC1A'', ''MMC1B1'', ''MMC1B2'', ''MMC1B3'' and ''MMC1C''. The differences between the different versions are slight, mostly owing to savegame memory protection behavior. The MMC1 chip allows for switching of different memory banks. Program ROM can be selected in 16KB or 32KB chunks, and character [[Read-only memory|ROM]] can be selected in 4KB or 8KB chunks. An unusual feature of this memory controller is that its input is [[Serial communication|serial]], rather than [[Parallel communication|parallel]], so 5 sequential writes (with [[bit shifting]]) are needed to send a command to the [[Integrated circuit|circuit]].<ref>{{Cite web|url=http://wiki.nesdev.com/w/index.php/MMC1|title=MMC1 - Nesdev wiki|website=wiki.nesdev.com}}</ref>