INES Mapper 209: Difference between revisions

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{{DEFAULTSORT:209}}[[Category:INES Mappers]][[Category:Mappers with ROM nametables]]
{{DEFAULTSORT:209}}[[Category:INES Mappers]][[Category:Mappers with ROM nametables]]
This mapper is a variant on [[INES Mapper 090]] that allows the use of a more sophisticated mirroring control mode, including mapping CHR ROM into nametables. [[iNES Mapper 211]] forces the use of this more complex mirroring control.
'''iNES Mapper 209''' refers to versions of the ASIC mapper used by [[JY Company]] where bit 5 of port $D000 switches between simple nametable control (like [[INES Mapper 090]]) and extended nametable control that allows mapping CHR ROM into nametables (like [[iNES Mapper 211]]).

Revision as of 22:42, 3 November 2014

iNES Mapper 209 refers to versions of the ASIC mapper used by JY Company where bit 5 of port $D000 switches between simple nametable control (like INES Mapper 090) and extended nametable control that allows mapping CHR ROM into nametables (like iNES Mapper 211).