psx-spx.github.io/arcadecabinets.md
Nicolas 'Pixel' Noble c602ea11a1 Initial conversion.
2020-07-23 11:49:17 -07:00

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# Arcade Cabinets
#### PSX-Based Arcade Boards
```
Namco System 11, System 12 (and System 10?)
Capcom/Sony ZN-1, ZN-2
Konami GV, Konami GQ
Taito FX-1A, Taito FX-1B
Atlus PSX, PS Arcade 95, Tecmo TPS
```
#### CPU
Same as in PSX. Except, one board is said to be having the CPU clocked at
48MHz, instead of 33MHz???<br/>
#### GPU
Same as in PSX. Except, most or all boards are said to have 2MB VRAM instead of
1MB. Unknown how the extra VRAM is accessed... maybe as Y=512..1023... (though
the PSX VRAM transfer commands are limited to 9bit Ysiz values, but maybe Y
coordinates can be 10bit wide).<br/>
#### ROM vs CDROM
Arcade games are stored on ROM (or FLASH) instead of using CDROM drives.<br/>
#### SPU
Most PSX-based arcade boards are having the PSX-SPU replaced by a different
sound chip (with each arcade manufacturer using their own custom sound chip,
often controlled by a separate sound CPU).<br/>
#### Controls
Arcade boards are typically having digital joysticks instead of joypads, with
differently named buttons (instead of /\,[],(),\>\<), probably accessed via
custom I/O ports (instead of serial transmission)? Plus additional coin inputs
and DIP switches.<br/>
Note: There's no documentation for those arcade boards yet, however, it might
be possible to extract that info from MAME source code.<br/>