Popolon Musical Memory Mapper
Contents |
Description
The Musical Memory Mapper (MMM) cartridge is a standard 1024kB external memory extension for MSX1, MSX2, MSX2 + and MSX Turbo R sold by Popolon and Repro Factory (2013~2016).
Additionally it has the following features:
- A SN76489AN sound chip used in various game consoles of the 80s built-in.
- A write protection function and the ability to manage its memory regardless of other memory mappers.
- MMM initializes Memory Mapper pages on each memory bank of 0000h~3FFFh, 4000h~7FFFh, 8000h~BFFFh and C000h~FFFFh in the order 3, 2, 1, 0 at MSX startup to provide compatibility with MSX1.
Many memory mapper cartridges support reading the mapper registers to support some non-standard compliant software which attempts to do so. The first version of MMM is a memory mapper does not provide this ability. The second version of MMM (chrome case) does allow mapper read-back to be enabled. By default it is disabled.
The cartridge contacts are gold plated. The price is around €42.
Gallery
Specifications
- 1024kB of RAM
- SN76489AN inside (I/O ports: #3F)
See the manual for more information.
Minimum System Requirements
- MSX1 computer, one free slot cartridge
Software
- CHKMEM.BIN (Utility that displays the slot of RAM, memory mapper and MegaRAM by LARK)
- LRT2MSX.COM (included in SGTOOL.ZIP) allows to run Loretta no Shouzou (SG-1000).
- Mapper info (by Yukke)
- MEGA16.COM (Megarom with ASC16 mapper loader)
- MEMTEST.COM (RAM of memory mapper tester by Masatoshi Fujimoto)
- ROM2MMM.COM (MSX ROM loader by GDX)
- SG1000.COM (Sega SG-1000 ROM loader by GDX)
- VGMPLAY.COM (Music player for SN76489 and many other chips by Grauw)
- TESTMAP.COM (Memory mapper RAM tester by Marteen)
- SofaRom (MegaROM and ROM loader by Louthrax)