TOP MICROSYSTEMS, INC.

286 MODEL-1010-200, VER 1.25

Processor

80286

Processor Speed

12/16/20MHz

Chip Set

C & T

Max. Onboard DRAM

2MB

Cache

None

BIOS

Phoenix

Dimensions

330mm x 218mm

I/O Options

16-bit external memory card slot

NPU Options

80287

CONNECTIONS

Purpose

Location

Purpose

Location

Speaker

J1

Power LED & keylock

J4

Reset switch

J2

External battery

J6

Turbo LED

J3

16-bit external memory card

S1

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Monitor type select color

J5

pins 2 & 3 closed

 

Monitor type select monochrome

J5

pins 1 & 2 closed

»

NPU is synchronous with CPU

J19

pins 3 & 4 closed

 

NPU is synchronous with oscillator installed at U17

J19

pins 1 & 2 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

512KB

(4) 44256

NONE

NONE

NONE

640KB

(4) 44256

(4) 4464

NONE

NONE

1MB

(4) 44256

(4) 44256

NONE

NONE

2MB

(4) 44256

(4) 44256

(4) 44256

(4) 44256

DRAM PARITY CONFIGURATION

Size

P 0

P 1

P 2

P 3

512KB

(2) 41256

NONE

NONE

NONE

640KB

(2) 41256

(2) 41256

(2) 4164

NONE

1MB

(2) 41256

(2) 41256

NONE

NONE

2MB

(2) 41256

(2) 41256

(2) 41256

(2) 41256