iNES Mapper 207 represents the board used for Fudou Myouou Den.
It modifies Taito's X1-005 (80) in the exact same way that TLSROM (118) differs from MMC3 (4), by which we mean the X1-005's CHR A17 output is connected to CIRAM A10. Thus, it achieves 1scA/1scB/H controllable mirroring instead of H/V.
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= Mapper 207 =
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Registers:
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$7EF0: [MCCC CCCC]
M = Mirroring 0
C = CHR Reg 0
$7EF1: [MCCC CCCC]
M = Mirroring 1
C = CHR Reg 1
$7EF2-7EF5: CHR Regs 2-5
$7EF6-7EF7: was old mirroring control register, now ignored
$7EF8-7EFF: see iNES Mapper 080
CHR Setup:
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$0000 $0400 $0800 $0C00 $1000 $1400 $1800 $1C00
+---------------+---------------+-------+-------+-------+-------+
| <$7EF0> | <$7EF1> | $7EF2 | $7EF3 | $7EF4 | $7EF5 |
+---------------+---------------+-------+-------+-------+-------+
Mirroring:
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[ $7EF0 ][ $7EF0 ]
[ $7EF1 ][ $7EF1 ]
Mirroring bit of appropriate reg selects NTA or NTB
Categories: In NesCartDB, INES Mappers, MMC3-like mappers