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386-U

MICROMEDIA TECHNOLOGIES, INC.

386-U

Processor

80386DX/CX486DLC

Processor Speed

33/40MHz

Chip Set

UMC

Max. Onboard DRAM

32MB

Cache

64/128/256KB

BIOS

AMI

Dimensions

220mm x 220mm

I/O Options

None

NPU Options

80387DX/3167

CONNECTIONS

Purpose

Location

Purpose

Location

Speaker

W1

Turbo switch

W4

Power LED & keylock

W2

Turbo LED

W5

Reset switch

W3

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Factory configured - do not alter

W9

N/A

Factory configured - do not alter

W10

N/A

CMOS memory normal operation

W11

pins 1 & 2 closed

 

CMOS memory clear

W11

pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 3

1MB

(4) 256K x 9

NONE

2MB

(4) 256K x 9

(4) 256K x 9

4MB

(4) 1M x 9

NONE

5MB

(4) 1M x 9

(4) 256K x 9

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

32MB

(4) 4M x 9

(4) 1M x 9

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

64KB

(4) 8K x 8

(4) 8K x 8

(1) 8K x 8

128KB

(4) 32K x 8

NONE

(1) 8K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

WC1

WC2

WC3

WC4

WC5

64KB

pins 2 & 3

Open

Open

pins 1 & 2

pins 1 & 2

128KB

pins 1 & 2

Open

Closed

pins 1 & 2

pins 2 & 3

256KB

pins 2 & 3

Closed

Closed

pins 2 & 3

pins 2 & 3

Note:Pins designated should be in the closed position.

NPU CONFIGURATION

NPU

Mode

JP101

JP102

W6

W7

Enabled

Sync.

Open

pins 2 & 3

Closed

Closed

Disabled

Async.

Closed

pins 1 & 2

Open

Open

Note:Pins designated should be in the closed position.