...because we can't all be on the bleeding edge...





BABY 286MB Ver. 1.20

INFORMTECH INTERNATIONAL, INC.

BABY 286MB Ver. 1.20

Processor

80286

Processor Speed

5/6/8/10MHz

Chip Set

C & T

Max. Onboard DRAM

1MB

SRAM Cache

None

BIOS

Unidentified

Dimensions

330mm x 218mm

I/O Options

Auxilliary keyboard connector

NPU Options

80287

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

Power good signal detect from power supply

J14

pins 2 & 3 closed

 

Power good signal detect from board

J14

pins 1 & 2 closed

 

BIOS type select 27256

J15

pins 1 & 2 closed

 

BIOS type select 27128

J15

pins 2 & 3 closed

Factory configured - do not alter

SW1/Switch 5

closed

Monitor type select monochrome

SW1/Switch 6

open

 

Monitor type select color

SW1/Switch 6

closed

CONNECTIONS

Purpose

Location

Purpose

Location

Speaker

P1

Power LED & keylock

P4

Turbo LED

P2

Auxilliary keyboard

P6

Reset switch

P3

External battery

P8

DRAM CONFIGURATION

Size

Bank 0

Bank 1

SW1/Switch 3

SW2/Switch 4

 

256KB

(18) 4164

(18) 4164

closed

open

 

512KB

(18) 41256

NONE

open

open

640KB

(18) 41256

(18) 4164

closed

closed

 

1024KB

(18) 41256

(18) 41256

open

closed

NPU SPEED CONFIGUARATION

NPU Speed

Clock Rate

J7

J8

80287-12

8/12MHz

open

pins 1 & 2 closed

80287-12

6.7/10MHz

open

pins 1 & 2 closed

80287-10

6.7/10MHz

open

pins 1 & 2 closed

80287-10

5.3/8MHz

closed

pins 2 & 3 closed

80287-8

5.3/8MHz

closed

pins 2 & 3 closed

80287-8

4.4/6MHz

closed

pins 2 & 3 closed

80287-6

4.4/6MHz

closed

pins 2 & 3 closed

80287-6

2.6/4MHz

closed

pins 1 & 2 closed

BATTERY TYPE CONFIGUARATION

Battery

J12

J13

Internal lithium (2 x 3VDC)

pins 1 & 2 closed

closed

 

External lithium (6VDC)

open

closed

 

External alkaline (6VDC)

open

open

SYSTEM CLOCK WAIT STATE CONFIGURATION

Speed

Wait State

J2

J5

J8

J11

10MHz

0

closed

pins 1 & 2

closed

pins 1 & 2

10MHz

1

open

pins 1 & 2

open

pins 1 & 2

12MHz

0

closed

pins 2 & 3

closed

pins 2 & 3

12MHz

1

open

pins 2 & 3

open

pins 2 & 3

Note:Pins designated should be in the closed position.

I/O MODE WAIT STATE CONFIGURATION

Wait States

8-BIT

I/O

8-BIT

Memory

16-BIT

I/O

16-BIT

Memory

SW1/

Switch 1

SW1/

Switch 2

0

0 (6)

0 (6)

0 (3)

0 (3)

closed

closed

1

0 (6)

0 (6)

0 (3)

1 (4)

closed

open

2

1 (7)

1 (7)

1 (4)

1 (4)

open

closed

3

2 (8)

2 (8)

1 (4)

2 (5)

open

open