TMC RESEARCH CORPORATION

PAT3XAL (VER. 2.0)

Processor

80386SX/CX486SLC

Processor Speed

20/25/33/40MHz

Chip Set

VLSI

Max. Onboard DRAM

16MB

Cache

None

BIOS

Unidentified

Dimensions

220mm x 220mm

I/O Options

None

NPU Options

80387SX

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J4

Turbo LED

J8 (pins 1 - 2)

Reset switch

J6

Turbo switch

J8 (pins 4 - 5)

Speaker

J7

Power LED & keylock

J9

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

NPU synchronous with CPU

JP2

Open

 

NPU asynchronous with CPU

JP2

Closed

»

Monitor type select monochrome

JP4

Open

 

Monitor type select color

JP4

Closed

»

Battery type select internal

JP7

pins 1 & 2 closed

 

Battery type select external

JP7

Open

 

CMOS memory clear

JP7

pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

512KB

(2) 256K x 9

NONE

1MB

(2) 256K x 9

(2) 256K x 9

2MB

(2) 1M x 9

NONE

4MB

(2) 1M x 9

(2) 1M x 9

8MB

(2) 4M x 9

NONE

16MB

(2) 4M x 9

(2) 4M x 9

CPU SPEED CONFIGURATION

Speed

JP1

JP5

20MHz

pins 2 & 3 closed

pins 1 & 2 closed

25MHz

pins 1 & 2 closed

pins 2 & 3 closed

33MHz

pins 2 & 3 closed

pins 2 & 3 closed

40MHz

pins 1 & 2 closed

pins 1 & 2 closed