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ABOVEFUNCTION CARD

AMERICAN COMPUTER & PERIPHERAL INC.

ABOVEFUNCTION CARD

Card Type

Multi I/O card

Chipset/Controller

Unidentified

I/O Options

Game port, memory, parallel port, serial port

Maximum DRAM

2MB

CONNECTIONS

Purpose

Location

Purpose

Location

Parallel port

CN1

Game port

CN3

Serial port

CN2

   

FACTORY CONFIGURED SETTING

Switch

Setting

SW1/4

N/A

GAME PORT

Setting

SW1/2

Enabled

On

 

Disabled

Off

REAL TIME CLOCK

Address/IRQ

SW1/3

SW1/5

SW1/6

2C0h/None

On

Off

Off

 

2C0h/IRQ2

On

Off

On

 

2C0h/IRQ5

On

On

Off

 

Disabled

Off

Off

Off

SERIAL PORT CONFIGURATION

COM/Address/IRQ

SW2/5

SW2/6

SW1/7

SW1/8

COM1/3F8h/IRQ4

On

On

On

Off

 

COM1/3F8h/IRQ3

On

On

Off

On

 

COM1/3F8h/None

On

On

Off

Off

 

COM2/2F8h/IRQ3

Off

On

Off

On

 

COM2/2F8h/IRQ4

Off

On

On

Off

 

COM2/2F8h/None

Off

On

Off

Off

 

Disabled

Off

Off

Off

Off

PARALLEL PORT CONFIGURATION

LPT/Address

SW2/7

SW2/8

LPT1/378h

On

On

 

LPT2/278h

Off

On

 

Disabled

Off

Off

MEMORY ALLOCATION

Setting

SW1/1

Fill conventional memory from 256KB to 640KB

On

 

All Abovefunction memory assigned to expanded memory

Off

STARTING MEMORY ADDRESS

Address

SW2/1

SW2/2

SW2/3

SW2/4

258h

Off

On

Off

On

 

268h

On

Off

Off

On

 

208h

On

On

On

On

 

218h

Off

On

On

On

 

2A8h

On

Off

On

Off

 

2B8h

Off

Off

On

Off

 

2E8h

On

Off

Off

Off

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

Bank 4

Bank 5

Bank 6

Bank 7

256KB

(9) 41256

None

None

None

None

None

None

None

512KB

(9) 41256

(9) 41256

None

None

None

None

None

None

768KB

(9) 41256

(9) 41256

(9) 41256

None

None

None

None

None

1MB

(9) 41256

(9) 41256

(9) 41256

(9) 41256

None

None

None

None

1.25MB

(9) 41256

(9) 41256

(9) 41256

(9) 41256

(9) 41256

None

None

None

1.5MB

(9) 41256

(9) 41256

(9) 41256

(9) 41256

(9) 41256

(9) 41256

None

None

1.75MB

(9) 41256

(9) 41256

(9) 41256

(9) 41256

(9) 41256

(9) 41256

(9) 41256

None

2MB

(9) 41256

(9) 41256

(9) 41256

(9) 41256

(9) 41256

(9) 41256

(9) 41256

(9) 41256

Note:Banks must be filled in numerical order. Partially filled banks will not function. The top chip of each row is the parity bit.