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SHVC-1J5M-20

A chipboard with a single ROM chip, 256k of RAM, and a MAD-1 chip.

All PCB information based on a document by Overload

Supported ROM sizes

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

Supported RAM sizes

  • 256 kbit

On-board chips

Chip numberChip type
U1MASKROM
U2256k SRAM
U3MAD-1
U4CIC

ROM Registration

A properly formatted internal header should have these values

Memory Address Value Explanation
FFD521H / 31HMap Mode
FFD602HCartridge Type
FFD709H ~ 0CHROM Size
FFD805HRAM 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
00-3F8000-FFFFROM (MIRROR)
20-3F6000-7FFFRAM
40-7F0000-FFFFROM
80-BF8000-FFFFROM (MIRROR)
A0-BF6000-7FFFRAM (MIRROR)
C0-FF0000-FFFFROM (MIRROR)

Games that use this PCB type:

Game Name Region Serial Code
Fushigi no Dungeon 2 - Fuurai no Shiren Japan SHVC-AAXJ-0
Sim City 2000 Japan SHVC-AWWJ-0
Sim City 2000 PAL SHVC-AWWJ-0
Civilization, Sid Meier's USA SNS-EQ-0
NHL 98 USA SNS-A8HE-0
PTO II: Pacific Theatre of Operations USA SNS-ATEE-0
Romance of the Three Kingdoms IV: Wall of Fire USA SNS-AS4E-0
Sim City 2000 USA SNS-AWWE-0

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