ADVANCED MICROCOMPUTER SYSTEMS, INC.

SUPER I/O 20 (NP)

Card Type

Multi-I/O card

Chip Set

Unidentified

Maximum Onboard Memory

Unidentified

I/O Options

Serial ports (2)

Data Bus

16-bit ISA

CONNECTIONS

Function

Label

Function

Label

Serial port 1

J2

Serial port 2

J4

SERIAL PORT 1 ADDRESS SELECTION

Setting

J6/A

J6/B

»

COM2 (2F8h)

Open

Closed

 

COM4 (2E8h)

Closed

Open

 

Disabled

Open

Open

SERIAL PORT 2 ADDRESS SELECTION

Setting

J7/A

J7/B

 

COM1 (3F8h)

Closed

Open

»

COM3 (3E8h)

Open

Closed

 

Disabled

Open

Open

SERIAL PORT 1 INTERRUPT SELECTION

IRQ

SP1/A

SP1/B

SP1/C

SP1/D

SP1/E

SP1/F

 

2

Closed

Open

Open

Open

Open

Open

 

3

Open

Closed

Open

Open

Open

Open

»

4

Open

Open

Closed

Open

Open

Open

 

5

Open

Open

Open

Closed

Open

Open

 

6

Open

Open

Open

Open

Closed

Open

 

7

Open

Open

Open

Open

Open

Closed

 

10

Open

Open

Open

Open

Open

Open

 

11

Open

Open

Open

Open

Open

Open

 

12

Open

Open

Open

Open

Open

Open

 

15

Open

Open

Open

Open

Open

Open

 

14

Open

Open

Open

Open

Open

Open

SERIAL PORT 1 INTERRUPT SELECTION (CONTINUED)

IRQ

SP1/G

SP1/H

SP1/I

SP1/J

SP1/K

 

2

Open

Open

Open

Open

Open

 

3

Open

Open

Open

Open

Open

»

4

Open

Open

Open

Open

Open

 

5

Open

Open

Open

Open

Open

 

6

Open

Open

Open

Open

Open

 

7

Open

Open

Open

Open

Open

 

10

Closed

Open

Open

Open

Open

 

11

Open

Closed

Open

Open

Open

 

12

Open

Open

Closed

Open

Open

 

15

Open

Open

Open

Closed

Open

 

14

Open

Open

Open

Open

Closed

SERIAL PORT 2 INTERRUPT SELECTION

IRQ

SP2/A

SP2/B

SP2/C

SP2/D

SP2/E

SP2/F

 

2

Closed

Open

Open

Open

Open

Open

»

3

Open

Closed

Open

Open

Open

Open

 

4

Open

Open

Closed

Open

Open

Open

 

5

Open

Open

Open

Closed

Open

Open

 

6

Open

Open

Open

Open

Closed

Open

 

7

Open

Open

Open

Open

Open

Closed

 

10

Open

Open

Open

Open

Open

Open

 

11

Open

Open

Open

Open

Open

Open

 

12

Open

Open

Open

Open

Open

Open

 

15

Open

Open

Open

Open

Open

Open

 

14

Open

Open

Open

Open

Open

Open

SERIAL PORT 2 INTERRUPT SELECTION (CONTINUED)

IRQ

SP2/G

SP2/H

SP2/I

SP2/J

SP2/K

 

2

Open

Open

Open

Open

Open

»

3

Open

Open

Open

Open

Open

 

4

Open

Open

Open

Open

Open

 

5

Open

Open

Open

Open

Open

 

6

Open

Open

Open

Open

Open

 

7

Open

Open

Open

Open

Open

 

10

Closed

Open

Open

Open

Open

 

11

Open

Closed

Open

Open

Open

 

12

Open

Open

Closed

Open

Open

 

15

Open

Open

Open

Closed

Open

 

14

Open

Open

Open

Open

Closed