The Retro Web DTK PEM-0039N Micro House Encyclopedia of Main Boards Owner’s Manual
- July 31, 2024
- The Retro Web
Table of Contents
**The Retro Web DTK PEM-0039N Micro House Encyclopedia of Main Boards Owner’s Manual
**
CONNECTIONS
Purpose| Location| Purpose| Location
External battery| J2| Reset switch| JP51 pins 19-20
Power LED & keylock| JP51 pins 1-5| Turbo LED| JP51 pins 12-13
Speaker| JP51 pins 7-10| |
USER CONFIGURABLE SETTINGS
Function| Jumper| Position
íCMOS memory normal operation (Internal Battery)| J2| pins 2 & 3 closed
CMOS memory normal operation (External Battery)| J2| pins 1, 2, 3, & 4 closed
CMOS memory clear| J2| pins 3 & 4 closed
íTurbo mode disabled| JP51| pins 15 & 16 closed
Turbo mode enabled| JP51| pins 16 & 17 closed
Monitor type select monochrome| JP32| Open
Monitor type select color| JP32| Closed
DRAM CONFIGURATION
Size| Bank 0| Bank 1
1MB| (4) 256K x 9| NONE
2MB| (4) 256K x 9| (4) 256K x 9
4MB| (4) 1M x 9| NONE
5MB| (4) 256K x 9| (4) 1M x 9
8MB| (4) 1M x 9| (4) 1M x 9
16MB| (4) 4M x 9| NONE
20MB| (4) 1M x 9| (4) 4M x 9
20MB| (4) 4M x 9| (4) 1M x 9
32MB| (4) 4M x 9| (4) 4M x 9
64MB| (4) 16M x 9| NONE
80MB| (4) 4M x 9| (4) 16M x 9
80MB| (4) 16M x 9| (4) 4M x 9
128MB| (4) 16M x 9| (4) 16M x 9
CACHE CONFIGURATION
Size| Bank 0| TAG
32KB| (4) 8K x 8| (1) 8K x 8
64KB| (4) 16K x 8| (1) 8K x 8
128KB| (4) 32K x 8| (1) 8K x 8
CACHE JUMPER CONFIGURATION
Size| JP7| JP58
32KB| Open| pins 1 & 2 closed
64KB| Closed| pins 1 & 2 closed
128KB| Closed| pins 2 & 3 closed
CPU SPEED CONFIGURATION (PGA)
Size| JP7| JP58
32KB| Open| pins 1 & 2 closed
64KB| Closed| pins 1 & 2 closed
128KB| Closed| pins 2 & 3 closed
CPU SPEED CONFIGURATION (PQFP)
Speed| JP34| JP35
25MHz| Open| Closed
33MHz| Closed| Open
40MHz| Open| Open
Copyright © 1992, 1993, Micro House International303-443-3388. All rights reserved. Including the right of reproduction in any form.
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