NES 2.0 Mapper 452: Difference between revisions
From NESdev Wiki
Jump to navigationJump to search
NewRisingSun (talk | contribs) No edit summary |
NewRisingSun (talk | contribs) (Lock functionality) |
||
| Line 8: | Line 8: | ||
|| 0=V, 1=H in UNROM mode, | || 0=V, 1=H in UNROM mode, | ||
|| CIRAM A10 in AOROM mode | || CIRAM A10 in AOROM mode | ||
++------- Lock Pp if either bit is set | |||
|+------- PRG A17 in UNROM mode | |+------- PRG A17 in UNROM mode | ||
+-------- PRG A18 | +-------- PRG A18 | ||
+-------- PRG banking mode | +-------- PRG banking mode | ||
0=UNROM, 1=AOROM | 0=UNROM, 1=AOROM | ||
Revision as of 14:50, 2 April 2022
NES 2.0 Mapper 453 denotes the Realtec 8042 multicart circuit board, used for the 3-in-1 1995 World Competitive Champion Edition (DG-002) multicart. It supports both AOROM and UNROM banking modes.
Data Latch ($8000-$FFFF), write
D~[.PpM .BBB]
||| +++- PRG A16..A14 in UNROM mode,
||| PRG A17..A15 in AOROM mode
||+------ Mirroring
|| 0=V, 1=H in UNROM mode,
|| CIRAM A10 in AOROM mode
++------- Lock Pp if either bit is set
|+------- PRG A17 in UNROM mode
+-------- PRG A18
+-------- PRG banking mode
0=UNROM, 1=AOROM
