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SHVC-1B0N-01

A PCB board that has a DSP1 chip, 74LS139 and 74HCU04 decoders and a single ROM chip

All PCB information based on a document by Overload

Supported ROM sizes

  • 2 Mbit
  • 4 Mbit
  • 8 Mbit

Supported RAM sizes

This PCB does not have a RAM chip

On-board chips

Chip numberChip type
U1ROM
U2UPD77C25
U374LS139
U474HCU04
U5CIC

ROM Registration

A properly formatted internal header should have these values

Memory Address Value Explanation
FFD520H / 30HMap Mode
FFD603HCartridge Type
FFD708H ~ 0AHROM Size
FFD800HRAM 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
00-1F8000-FFFFROM
30-3F8000-FFFFDSP
80-9F8000-FFFFROM (MIRROR)
B0-BF8000-FFFFDSP (MIRROR)

Games that use this PCB type:


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