Sony HBM-512
This page was last modified 21:16, 12 December 2018 by Msxholder. Based on work by Robosoft and Gdx and others.

The Sony HBM-512 memory mapper is one of the few memorymappers made by an original MSX manufacturer and runs on any MSX2 computer. It was originally designed for the Sony HB-G900P videocomputer and doesn't work on computers that run on a higher clockfrequency than 3.58MHz, because of the slow RAM chips.


This cartridge is intended to be expandable to 1024kB.

Contents

Gallery

The pcb shown in the picture is not from the HBM-512: its a clone for an philips case !


Sony HBM-512 cartridge front
Sony HBM-512 cartridge back
Sony HBM-512 PCB
Sony HBM-512 box
Sony HBM-512 Manual front
Sony HBM-512 Manual back

Minimum System Requirements

  • MSX2 computer, one free slot cartridge

Note: As all standard Memory Mapper, this cartridge is not supported by MSX1 computers except with Nextor or a MSX-DOS2 unbridled (like Sunrise CF interface). On MSX1 without Nextor, we need to manually initialize pages order of the mapper from basic before it can be used.

Software

  • CHKMEM.BIN (Utility that displays the slot of RAM, Memory Mapper and MegaRAM by LARK)
  • Mapper Info (by Yukke)
  • MEGA16.COM (loader for megaroms with 16k mapper)
  • MEMTEST.COM (RAM of Memory Mapper tester by Masatoshi Fujimoto)
  • TESTMAP.COM (RAM of Memory Mapper tester by Marteen)
  • SofaRom (MegaRoms and Roms loader by Louthrax)

Links