INES Mapper 016/Submapper table

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INES Mapper 016 submapper table
Submapper # Meaning Note
0 Unspecified Emulate both FCG-1/2 and LZ93D50 chips in their respective CPU address ranges.
1 LZ93D50 with 128 byte serial EEPROM (24C01) Deprecated, use INES Mapper 159 instead.
2 Datach Joint ROM System Deprecated, use INES Mapper 157 instead.
3 8 KiB of WRAM instead of serial EEPROM Deprecated, use INES Mapper 153 instead.
4 FCG-1/2 Responds only in the CPU $6000-$7FFF address range; IRQ counter is not latched.
5 LZ93D50 with no or 256-byte serial EEPROM (24C02) Responds only in the CPU $8000-$FFFF address range; IRQ counter is latched.

If there are 256 bytes of serial EEPROM, they will be denoted as PRG-NVRAM in the NES 2.0 header (byte value $20). See: INES Mapper 016