Padial LPE-4FMB-V8SKP
Contents |
Description
The LPE-4FMB-V8SKP is 4MB RAM memory expansion with MegaRam modes.
This expansion seems the same as the LPE-4MB-V4SKP but programmed to support a extra MegaRam mode.
Cartridge contacts are gold plated.
Price: 85€.
Gallery
Specifications
- 4096kB DRAM chips configurable as Memory Mapper or MegaRAM (Konami4, Konami5, ASCII8 and ASCII16 compatible).
- Up to 14.3MHz.
- Mapper registers readable and auto-updated at MSX reset (FFh=0, FEh=1, FDh=2, FCh=3)
- MSX1/MSX2/MSX2+/MSX Turbo R compatible.
- Panasonic A1-WX/A1-WSX 5.37MHz turbo mode non-compatible.
- PCB compatible with Sony, Konami and MSX Cartridge Shop cartridge cases.
The upper 2048kB RAM are used for the MegaRAM mode. The mode selection register is accessible via the I/O port 54h. Set the bit 0 to enabled the MegaRAM mode. The bit 1 allows you to setect the mapper pages size (0/1 = 16K/8K).
Then, the most signifiant bytes of the switching addresses must be defined via the I/O ports 55h to 58h for the 8K mapper, or 5Ah and 5Bh for the 16K mapper.
For example, OUT &H54,&H80: OUT &H5A,&H60: OUT &H5A,&H70 define the ASCII 16K mapper.
The Rom mapper will be enabled after an MSX reset.
Minimum System Requirements
- MSX1 computer, one free slot cartridge
Software
- LPE4FMB.COM - Included Rom loader v1.6 (Rename the file LPE4FMB.COM)
- LPE4FMB2.COM - Included Rom loader v1.8 (Rename the file LPE4FMB2.COM)
- BMMS (Bigger Memory Mapper Selector)
- 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)