= HF8V = / = SP8WJT = / = SP0106RZ =

HF-17589


PROJECT: HF-17589
TYPE: GSEP2112
WS DATABASE: WS-078
DESCRIPTION: VCR front PCB with VFD driver DMB5208
BRAND: DAEWOO
STATUS: z
PROJECT START DATE:
LOCALISATION: --
DOCUMENTATION: nil
PCB: TPD57589
CPU CATALOG NUMBER: UC-526



Project Info

This module was dissasembled and CPU goes to reserve.
DMB5208 is DAEWOO rebranded MITSUBISHI M50754 MELPS740 processor.
Similiar MELPS740 M50744 (UC-391) is used in my 'retro' project HF-12244

Through the years I gathered small collection of MELPS740 microcontrollers, mainly from old consumer and bureau electronics:

UC-### MICROPROCESSOR NAME BRAND NAME FAMILY
(SUBFAMILY, CORE)		 DISPOSITION REMARKS THN ADR TYPE
UC-197 M50754 MITSUBISHI MELPS740 reserve ROM6144, RAM192, 4MHz, EXT 0x05 0xB6
UC-293 M38002 MITSUBISHI MELPS740 (3800) HF-17243 2MIPS, EXT 0x51 0xB6
UC-391 M50744 MITSUBISHI MELPS740 HF-12244 8b, ROM4K, RAM144, CLK 4MHz, ADR SPC 64K, EXT 0x2B 0xB6
UC-392 M50745 MITSUBISHI MELPS740 HF-17706 ROM6144, RAM192, 4MHz, EXT 0x27 0xB6
UC-526 DMB5208 (M50754) DAEWOO MELPS740 HF-17589->reserve ROM6144, RAM192, 4MHz, EXT 0x56 0xB6

Another MELPS740 retro systems are quite possible, but thats not concrete plans yet. I already wrote some assembler code in ASL and I found this rather well-made instruction set. I also wrote my own macro assembler but it is still not debugged.





Sources:
[1] M50754 datasheet
[2] MELPS740 Programming Manual
[3] MELPS740 Instructions


Prefix 17

HF Register

Microcontrollers in my constructions and external equipment

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