NES 2.0 Mapper 387: Difference between revisions
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{{DEFAULTSORT:387}}[[Category:INES Mappers]][[Category:Mappers with ROM nametables]][[Category:Mappers with scanline IRQs]][[Category:Mappers with cycle IRQs]][[Category:Multicart mappers]] | {{DEFAULTSORT:387}}[[Category:INES Mappers]][[Category:Mappers with ROM nametables]][[Category:Mappers with scanline IRQs]][[Category:Mappers with cycle IRQs]][[Category:Multicart mappers]][[Category:Mappers using J.Y. Company ASIC]] | ||
'''NES 2.0 Mapper 387''' denotes J.Y. Company's '''YY850735C''' and '''YY850817C''' circuit boards, used for the multicarts: | '''NES 2.0 Mapper 387''' denotes J.Y. Company's '''YY850735C''' and '''YY850817C''' circuit boards, used for the multicarts: | ||
* ''1996 Super HiK 4-in-1 (JY-087)'' | * ''1996 Super HiK 4-in-1 (JY-087)'' | ||
Latest revision as of 00:21, 8 December 2021
NES 2.0 Mapper 387 denotes J.Y. Company's YY850735C and YY850817C circuit boards, used for the multicarts:
- 1996 Super HiK 4-in-1 (JY-087)
- 1996 Super HIK 4-in-1 (JY-089)
- 1996 Super HIK 4-in-1 (JY-093)
- 1996 Super HIK 4-in-1 (JY-094)
It uses the J.Y. Company ASIC, has 512 MiB of PRG-ROM and 1 MiB of CHR-ROM. NES 2.0 Mapper 386 is almost the same but changes the outer PRG bank size from 128 to 256 KiB.
Outer Bank Register ($D003)
Mask: $F003
7654 3210
---- ----
..L? PCpc
|| |||+- CHR A18, ignored if L=1
|| ||+-- PRG A17
|| |+--- CHR A19
|| +---- PRG A18
|+------ Always 1
+------- Select outer CHR-ROM bank size
0: Mask $900x/$A00x to 256 KiB, use c
1: Mask $900x/$A00x to 512 KiB, ignore c
For a description of all other registers, see J.Y. Company ASIC.
