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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
| Supported RAM sizes
|
On-board chips
| Chip number | Chip type |
| U1 | MASKROM |
| U2 | 64k SRAM |
| U3 | MAD-1 |
| U4 | CIC |
ROM Registration
A properly formatted internal header should have these values
| Memory Address | Value | Explanation |
| FFD5 | 20H / 30H | Map Mode |
| FFD6 | 02H | Cartridge Type |
| FFD7 | 08H ~ 0CH | ROM Size |
| FFD8 | 03H | RAM 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 |
| 00-7F | 8000-FFFF | ROM |
| 70-7F | 0000-7FFF | RAM |
| 80-FF | 8000-FFFF | ROM (MIRROR) |
| F0-FF | 0000-7FFF | RAM (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 |