NES 2.0 Mapper 358: Difference between revisions
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[[Category:Multicart mappers]] | [[Category:Multicart mappers]] | ||
NES 2.0 Mapper 358 is used for yet another variation of [[INES Mapper 090]] from J.Y. Company, used on the ''1997 Super Game 7-in-1 (JY-016)'' multicart (PCB number YY860606C), and possibly others. It differs from [[ | NES 2.0 Mapper 358 is used for yet another variation of [[INES Mapper 090]] from J.Y. Company, used on the ''1997 Super Game 7-in-1 (JY-016)'' multicart (PCB number YY860606C), and possibly others. It differs from most other mappers using the [[J.Y. Company ASIC]] in the way the outer 512 KiB CHR-ROM bank is selected. | ||
==Outer Bank Register ($D003)== | ==Outer Bank Register ($D003)== | ||
Mask: $F803 | Mask: $F803 | ||
7654 3210 | 7654 3210 | ||
---- ---- | ---- ---- | ||
| Line 15: | Line 13: | ||
0: Mask to 256 KiB, CHR A18=0 | 0: Mask to 256 KiB, CHR A18=0 | ||
1: Mask to 512 KiB, CHR A18=1 in 2 KiB CHR banking mode, otherwise CHR A18=0 | 1: Mask to 512 KiB, CHR A18=1 in 2 KiB CHR banking mode, otherwise CHR A18=0 | ||
For a description of all other registers, see [[J.Y. Company ASIC]]. | |||
{{DEFAULTSORT:358}}[[Category:INES Mappers|358]][[Category:Mappers with ROM nametables|358]][[Category:Mappers with scanline IRQs|358]][[Category:Mappers with cycle IRQs|358]] | |||
Revision as of 16:01, 3 October 2018
NES 2.0 Mapper 358 is used for yet another variation of INES Mapper 090 from J.Y. Company, used on the 1997 Super Game 7-in-1 (JY-016) multicart (PCB number YY860606C), and possibly others. It differs from most other mappers using the J.Y. Company ASIC in the way the outer 512 KiB CHR-ROM bank is selected.
Outer Bank Register ($D003)
Mask: $F803
7654 3210
---- ----
..M. .ppC
| ||+-- CHR-ROM A18 if M=0, ignored if M=1
| ++--- PRG-ROM A17-A18
+-------- Outer CHR bank size and selection
0: Mask to 256 KiB, CHR A18=0
1: Mask to 512 KiB, CHR A18=1 in 2 KiB CHR banking mode, otherwise CHR A18=0
For a description of all other registers, see J.Y. Company ASIC.
