NES 2.0 Mapper 404: Difference between revisions
From NESdev Wiki
Jump to navigationJump to search
(Created page with "NES 2.0 Mapper 404 is used by the ''1998 Super HiK 8-in-1 (JY-021B)'' pirate multicart.") |
NewRisingSun (talk | contribs) No edit summary |
||
| Line 1: | Line 1: | ||
NES 2.0 Mapper 404 | {{DEFAULTSORT:404}}[[Category:Multicart mappers]] | ||
'''NES 2.0 Mapper 404''' denotes the '''JY012005''' [[MMC1]]-based multicart circuit board, used only for the ''1998 Super HiK 8-in-1 (JY-021B)'' multicart. | |||
==Outer Bank and Mode Register ($6000-$7FFF, write)== | |||
Mask: $E000 | |||
D~7654 3210 | |||
--------- | |||
LM.. ?BBb | |||
|| |+++- PRG/CHR A19..A17 | |||
|| +---- Always set to 1 by the menu | |||
|+-------- 0: PRG A17=MMC1 A17 (256 KiB inner PRG bank) | |||
| 1: PRG A17=b (128 KiB inner PRG bank) | |||
+--------- 1: Lock outer bank register | |||
Power-on value: $00 | |||
==MMC1-compatible registers ($8000-$FFFF)== | |||
Mask: $E000 | |||
See [[MMC1]]. | |||
Latest revision as of 13:52, 18 December 2021
NES 2.0 Mapper 404 denotes the JY012005 MMC1-based multicart circuit board, used only for the 1998 Super HiK 8-in-1 (JY-021B) multicart.
Outer Bank and Mode Register ($6000-$7FFF, write)
Mask: $E000 D~7654 3210 --------- LM.. ?BBb || |+++- PRG/CHR A19..A17 || +---- Always set to 1 by the menu |+-------- 0: PRG A17=MMC1 A17 (256 KiB inner PRG bank) | 1: PRG A17=b (128 KiB inner PRG bank) +--------- 1: Lock outer bank register Power-on value: $00
MMC1-compatible registers ($8000-$FFFF)
Mask: $E000
See MMC1.
