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SHVC-1A3M-20

A board with a single ROM chip, 64k of RAM and a MAD-1 chip

All PCB information based on a document by Overload

Supported ROM sizes

  • 2 Mbit
  • 4 Mbit
  • 8 Mbit
  • 16 Mbit
  • 32 Mbit

Supported RAM sizes

  • 64k kbit

On-board chips

Chip numberChip type
U1MASKROM
U264k SRAM
U3MAD-1
U4CIC

ROM Registration

A properly formatted internal header should have these values

Memory Address Value Explanation
FFD520H / 30HMap Mode
FFD602HCartridge Type
FFD708H ~ 0CHROM Size
FFD803HRAM Size

Memory Mapping

In order to get a game to work properly on an emulator, the following mapping should be used for this PCB.

Bank Address Usage
00-7F8000-FFFFROM
70-7F0000-7FFFRAM
80-FF8000-FFFFROM (MIRROR)
F0-FF0000-7FFFRAM (MIRROR)

Games that use this PCB type:

Game Name Region Serial Code
Super Famista 3 Japan SHVC-N6-0
Desert Fighter PAL SPAL-OS-0
Might & Magic II: Gate To Another World PAL SPAL-MG-0
Sensible Soccer: European Champions, International Sensible Soccer PAL SPAL-8S-0
Sensible Soccer: European Champions, International Sensible Soccer PAL SPAL-8S-1
Championship Soccer '94 USA SNS-67-0
Dig & Spike Volleyball USA SNS-VH-0
Equinox USA SNS-EX-0
Legend Of Zelda, The: A Link to the Past USA SNS-ZF-0
Lufia and the Fortress of Doom USA SNS-ES-0
Pro Sport Hockey USA SNS-UI-0
Ultima VI: The False Prophet USA SNS-U6-0
Wizardry V: Heart of the Maelstrom USA SNS-W5-0

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