NES 2.0 Mapper 436

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Revision as of 13:10, 12 March 2022 by NewRisingSun (talk | contribs) (Created page with "{{DEFAULTSORT:439}}'''NES 2.0 Mapper 436''' denotes the '''ZLX-08''' plug-and-play VT02 console PCB, used by the ''Entertainment System 620-in-1'' plug-and-play console. It is uses normal OneBus banking, with one exception: the VT02's PRG A23 output (register $4100 bit 6 for PRG and bit 2 for CHR accesses) is connected to PRG-ROM A24, and PRG A23 comes from the VT02's I/O port at $410F, bit 5 instead. Since the I/O port is high-impedance on reset,...")
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NES 2.0 Mapper 436 denotes the ZLX-08 plug-and-play VT02 console PCB, used by the Entertainment System 620-in-1 plug-and-play console. It is uses normal OneBus banking, with one exception: the VT02's PRG A23 output (register $4100 bit 6 for PRG and bit 2 for CHR accesses) is connected to PRG-ROM A24, and PRG A23 comes from the VT02's I/O port at $410F, bit 5 instead. Since the I/O port is high-impedance on reset, which is pulled-up to a logical "1", the reset vectors are in the second 8 MiB part of ROM.

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