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PCA/12

TANDON CORPORATION

PCA/12

Processor

80286

Processor Speed

12MHz

Chip Set

Unidentified

Max. Onboard DRAM

4MB

Cache

None

BIOS

Unidentified

Dimensions

254mm x 220mm

I/O Options

Parallel port, serial ports (2), floppy drive interface, IDE interface

NPU Options

80287

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J7

IDE interface

J13

Speaker

J9

Serial port 2

J14

Reset switch

J10

Serial port 1

J15

Parallel port

J11

Floppy drive interface

J16

IDE interface LED

J12

   

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

High speed clock disabled

E1

Closed

 

High speed clock enabled

E1

Open

NPU disabled

E2

pins 1 & 2 open

 

NPU enabled

E2

pins 1 & 2 closed

Factory configured - do not alter

E3

pins 2 & 3 closed

256KB - 512KB memory enabled

SW1/1

Off

 

256KB - 512KB memory disabled

SW1/1

On

512KB - 640KB memory enabled

SW1/2

Off

 

512KB - 640KB memory disabled

SW1/2

On

Security enabled

SW1/3

Off

 

Security disabled

SW1/3

On

Factory configured - do not alter

SW1/4

Off

Note: The location of E3 is unidentified.

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