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





286/12

SINGA

286/12

Processor

80286

Processor Speed

12/16/20MHz

Chip Set

C & T

Max. Onboard DRAM

1MB

Cache

None

BIOS

Phoenix

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

80287

CONNECTIONS

Purpose

Location

Purpose

Location

Turbo switch

J1

Power LED & keylock

J6

External battery

J3

Reset switch

J15

Speaker

J5

Turbo LED

J16

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

CPU speed select 12MHz

J1

pins 1 & 2 closed

 

CPU speed select 8MHz

J1

pins 2 & 3 closed

CPU Speed select switchable at turbo switch

J2

pins 1 & 2 closed

 

CPU Speed select switchable at keyboard

J2

pins 2 & 3 closed

DMA clock speed select iOSC/2

J4

pins 2 & 3 closed

 

DMA clock speed select iOSC/1

J4

pins 1 & 2 closed

DRAM access speed select 8MHz

J10

pins 1 & 2 closed

 

DRAM access speed select 12MHz

J10

pins 2 & 3 closed

BIOS access speed select 8MHz

J11

pins 2 & 3 closed

 

BIOS access speed select 12MHz

J11

pins 1 & 2 closed

DMA clock slow down enabled

J12

pins 1 & 2 closed

 

DMA clock slow down disabled

J12

pins 2 & 3 closed

Keyboard controller speed select 8MHz

J13

pins 1 & 2 closed

 

Keyboard controller speed select 4MHz

J13

pins 2 & 3 closed

NPU speed select 8MHz

J14

pins 2 & 3 closed

 

NPU speed select 4.77MHz

J14

pins 1 & 2 closed

Battery type select internal

J17

Closed

 

Battery type select external

J17

Open

Battery charge mode select normal

J18

Open

 

Battery charge mode select fast

J18

Closed

Monitor type select color

S1/3

On

 

Monitor type select monochrome

S1/3

Off

DRAM CONFIGURATION

Size

Bank 0

Bank 1

256KB

(18) 4164

(18) 4164

512KB

(18) 41256

NONE

640KB

(18) 41256

(18) 4164

1MB

(18) 41256

(18) 41256

DRAM SWITCH CONFIGURATION

Size

S1/1

S1/2

S1/4

256KB

On

On

Off

512KB

Off

On

Off

640KB

On

Off

Off

1MB (512KB base)

Off

Off

Off

1MB (640KB base)

Off

Off

On