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MICROFRAME 486P

MONOLITHIC SYSTEMS, INC. (COLORADO MSI)

MICROFRAME 486P

Processor

80486SX/80487SX/80486DX/80486DX2

Processor Speed

25/33/50/66(internal)MHz

Chip Set

C & T PEAK DM

Max. Onboard DRAM

32MB

Cache

128KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

Bus mouse connector

NPU Options

4167

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J1

Auxiliary keyboard

J15

IDE interface LED

J3

Bus mouse

J19

Front panel composite cable

J6

Speaker

J27

Ready LED

J7

Power LED & keylock

J44

Reset switch

J8

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

CMOS memory normal operation

J2

Open

 

CMOS memory clear

J2

Closed

»

Factory configured - do not alter

J9

Open

»

Factory configured - do not alter

J10

pins 2 & 3 closed

»

Factory configured - do not alter

J11

Closed

»

Factory configured - do not alter

J17

pins 2 & 3 closed

»

Monitor type select color

J18

pins 2 & 3 closed

 

Monitor type select monochrome

J18

pins 1 & 2 closed

»

Factory configured - do not alter

J20

pins 1 & 2 closed

»

Bus mouse enabled

J21

Closed

 

Bus mouse disabled

J21

Open

»

Factory configured - do not alter

J22

pins 1 & 2 closed

»

Factory configured - do not alter

J23

pins 2 & 3 closed

»

Factory configured - do not alter

J24

Open

»

Cache enabled

J32

pins 1 & 2 closed

 

Cache disabled

J32

pins 2 & 3 closed

»

DMA signal select active high

J35

pins 1 & 2 closed

 

DMA signal select active low

J35

pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

1MB

(1) 256K x 36

NONE

NONE

NONE

2MB

(1) 512K x 36

NONE

NONE

NONE

3MB

(1) 512K x 36

(1) 256K x 36

NONE

NONE

4MB

(1) 1M x 36

NONE

NONE

NONE

5MB

(1) 1M x 36

(1) 256K x 36

NONE

NONE

6MB

(1) 512K x 36

(1) 1M x 36

NONE

NONE

7MB

(1) 512K x 36

(1) 1M x 36

(1) 256K x 36

NONE

8MB

(1) 2M x 36

NONE

NONE

NONE

9MB

(1) 2M x 36

(1) 256K x 36

NONE

NONE

10MB

(1) 2M x 36

(1) 512K x 36

NONE

NONE

11MB

(1) 2M x 36

(1) 512K x 36

(1) 256K x 36

NONE

12MB

(1) 2M x 36

(1) 1M x 36

NONE

NONE

13MB

(1) 2M x 36

(1) 1M x 36

(1) 256K x 36

NONE

14MB

(1) 2M x 36

(1) 512K x 36

(1) 1M x 36

NONE

15MB

(1) 2M x 36

(1) 512K x 36

(1) 1M x 36

(1) 256K x 36

16MB

(1) 2M x 36

(1) 2M x 36

NONE

NONE

17MB

(1) 2M x 36

(1) 2M x 36

(1) 256K x 36

NONE

18MB

(1) 2M x 36

(1) 2M x 36

(1) 512K x 36

NONE

19MB

(1) 2M x 36

(1) 2M x 36

(1) 512K x 36

(1) 256K x 36

20MB

(1) 2M x 36

(1) 2M x 36

(1) 1M x 36

NONE

21MB

(1) 2M x 36

(1) 2M x 36

(1) 1M x 36

(1) 256K x 36

22MB

(1) 2M x 36

(1) 2M x 36

(1) 512K x 36

(1) 1M x 36

DRAM CONFIGURATION (CON’T)

Size

Bank 0

Bank 1

Bank 2

Bank 3

24MB

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

NONE

25MB

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

(1) 256K x 36

26MB

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

(1) 512K x 36

28MB

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

(1) 1M x 36

32MB

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

CACHE CONFIGURATION

Size

Bank 0

TAG

128KB

(4) 32K x 8

(1) 32K x 8

CPU TYPE CONFIGURATION

Type

J12

J13

J14

80486SX

Open

pins 2 & 3 closed

Open

80487SX

Closed

pins 2 & 3 closed

pins 2 & 3 closed

80486DX

Closed

pins 1 & 2 closed

pins 1 & 2 closed

80486DX2

Closed

pins 1 & 2 closed

pins 1 & 2 closed