MVS cartridge: Difference between revisions

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MVS cartridges are made of two boards:
Unlike [[AES cartridge]]s, the sprite graphics aren't pre-serialized by a [[NEO-ZMC2]] or [[PRO-CT0]] chip. The complete [[C ROM]] data bus is exposed to the cartridge edge, it's then decoded by the chip included on the [[MVS hardware|board]].
*The [[PROG board]] which holds the [[P ROM|P]] (68k code) and [[V ROM|V]] (samples) ROMs.
*The [[CHA board]] which holds the [[C ROM|C]] (sprite graphics), [[V ROM|V]] (z80 code) and [[S ROM|S]] (fix graphics) ROMs.


Unlike [[AES cartridge]]s, the graphics data aren't pre-decoded by a [[NEO-ZMC2]] chip. The complete graphics data bus is exposed to the cartridge edge, it is then decoded by the NEO-ZMC2 (or [[PRO-CT0]]) chip included on the [[MVS hardware|board]].
Since NEO-ZMC2 isn't present, [[NEO-ZMC]] is used to multiplex the [[YM2610|ADPCM-A and ADPCM-B]] data accesses to the [[V ROM]]s.
 
Since NEO-ZMC2 isn't present, [[NEO-ZMC]] is used to direct the [[YM2610|ADPCM-A and ADPCM-B]] data requests to one V ROM.


The cartridge connector has 2*2*60 (240) pins. See [[pinouts]].
The cartridge connector has 2*2*60 (240) pins. See [[pinouts]].


[[Category:Cartridge systems]]
[[Category:Cartridge systems]]

Revision as of 05:07, 9 January 2012

Unlike AES cartridges, the sprite graphics aren't pre-serialized by a NEO-ZMC2 or PRO-CT0 chip. The complete C ROM data bus is exposed to the cartridge edge, it's then decoded by the chip included on the board.

Since NEO-ZMC2 isn't present, NEO-ZMC is used to multiplex the ADPCM-A and ADPCM-B data accesses to the V ROMs.

The cartridge connector has 2*2*60 (240) pins. See pinouts.

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