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D386SX CPU (REV. B) Motherboard Settings and Configuration







TEXAS MICRO, INC.

D386SX CPU (REV. B)

Device Type

Single board computer

Processor

80386SX

Processor Speed

20/25MHz

Chip Set

Unidentified

Maximum Onboard Memory

16MB

Cache

None

BIOS

Unidentified

Dimensions

183mm x 122mm

I/O Options

Floppy drive interface, IDE interface, parallel port, serial ports (2)

NPU Options

80387SX

CONNECTIONS

Purpose

Location

Purpose

Location

IDE interface

J1

Serial port 1

J4

Floppy drive interface

J2

Parallel port

J5

Serial port 2

J3

External battery

JP1

USER CONFIGURABLE SETTINGS

Function

Label

Position

Battery enabled

JP1

Pins 1 & 2 closed

 

Battery disabled

JP1

Pins 2 & 3 closed

 

External battery installed

JP1

Closed

Parallel port IRQ select IRQ7

JP2

Pins 2 & 3 closed

 

Parallel port IRQ select IRQ5

JP2

Pins 1 & 2 closed

User program setup loaded

JP3

Pins 2 & 3 closed

 

Default program setup loaded

JP3

Pins 1 & 2 closed

Monitor type select color

JP4

Pins 1 & 2 closed

 

Monitor type select monochrome

JP4

Pins 2 & 3 closed

SIMM 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








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