JPN CORPORATION

286LS

Processor

80286

Processor Speed

12/16MHz

Chip Set

Headland

Max. Onboard DRAM

4MB

Cache

None

BIOS

AMI

Dimensions

220mm x 220mm

I/O Options

None

NPU Options

80287

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

JP2

Turbo switch

JP10

Speaker

JP8

Reset switch

JP11

Turbo LED

JP9

Power LED & keylock

JP12

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Monitor type select color

JP3

Closed

 

Monitor type select monochrome

JP3

Open

»

CMOS memory normal operation

JP4

Open

 

CMOS memory clear

JP4

Closed

»

BIOS type select 27256

JP5

pins 2 & 3 closed

 

BIOS type select 27128

JP5

pins 1 & 2 closed

»

NPU clock speed select 10.4MHz

JP6

pins 1 & 2 closed

 

NPU clock speed select 4.8MHz

JP6

pins 2 & 3 closed

»

NPU mode select synchronous with CPU

JP7

Closed

 

NPU mode select asynchronous with CPU

JP7

Open

DRAM CONFIGURATION

Size

Bank 0 (D)

Bank 1 (D)

Parity 0 (D)

Parity 1 (D)

Bank 0 (S)

Bank 1 (S)

512KB

(4) 44256

NONE

(2) 41256

NONE

NONE

NONE

512KB

NONE

NONE

NONE

NONE

(2) 256K x 9

NONE

640KB

(4) 44256

(4) 4464

(2) 41256

(2) 4164

NONE

NONE

1MB

(4) 44256

(4) 44256

(2) 41256

(2) 41256

NONE

NONE

1MB

NONE

NONE

NONE

NONE

(2) 256K x 9

(2) 256K x 9

2MB

NONE

NONE

NONE

NONE

(2) 1M x 9

NONE

4MB

NONE

NONE

NONE

NONE

(4) 1M x 9

(2) 1M x 9

Notes:Model 286LS is available with either SIMM or SIPP sockets. DIP and SIMM/SIPP memory must be used separately.