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ACB-530

SEA LEVEL SYSTEMS, INC.

ACB-530

Card Type

Serial card

Chip Set

Unidentified

I/O Options

Serial port

Data Bus

16-bit ISA

CONNECTIONS

Function

Label

Serial port

P1

USER CONFIGURABLE SETTINGS

Function

Label

Position

Factory configured do not alter

E2

Unidentified

Factory configured do not alter

E9

Unidentified

Factory configured do not alter

SW1/8

Unidentified

SERIAL PORT INTERRUPT SELECTION

IRQ

E3

 

2

Pins 1 & 2 closed

 

3

Pins 3 & 4 closed

 

4

Pins 5 & 6 closed

5

Pins 7 & 8 closed

 

7

Pins 9 & 10 closed

 

10

Pins 11 & 12 closed

 

11

Pins 13 & 14 closed

 

12

Pins 15 & 16 closed

 

15

Pins 17 & 18 closed

SERIAL PORT INTERRUPT MODE SELECTION

Setting

E1

DMA terminal count IRQ

Pins 1 & 2 closed

Single IRQ

Pins 3 & 4 closed

Shared IRQ

Pins 5 & 6 closed

BASE I/O ADDRESS SELECTION

Setting

SW1/1

SW1/2

SW1/3

SW1/4

SW1/5

SW1/6

SW1/7

238

Off

On

On

On

Off

Off

Off

 

280

Off

On

Off

On

On

On

On

 

2A0

Off

On

Off

On

Off

On

On

 

2E8

Off

On

Off

Off

Off

On

Off

 

300

Off

Off

On

On

On

On

On

 

328

Off

Off

On

On

Off

On

Off

 

3E8

Off

Off

Off

Off

Off

On

Off

DMA SELECTION

Setting

E2

Software enabled channel A

Pins 1 & 2 closed

Channel A always enabled

Pins 3 & 4 closed

No DMA for channel A

Pins 5 & 6 closed

Software enabled channel B

Pins 7 & 8 closed

Channel B always enabled

Pins 9 & 10 closed

No DMA for channel B

Pins 11 & 12 closed

DMA SELECTION (SINGLE CHANNEL A HALF DUPLEX)

Setting

E4

E5

Channel A/channel 0, half duplex channel B no DMA

Open

1 & 2, 3 & 4

Channel A/channel 1, half duplex channel B no DMA

Open

5 & 6, 7 & 8

Channel A/channel 2, half duplex channel B no DMA

Open

9 & 10, 11 & 12

Channel A/channel 3, half duplex channel B no DMA

Open

13 & 14, 15 & 16

Note: Pins designated should be in the closed position.

DMA SELECTION (SINGLE CHANNEL B HALF DUPLEX)

Setting

E6

E7

Channel B/channel 0, half duplex channel A no DMA

Open

1 & 2, 3 & 4

Channel B/channel 1, half duplex channel A no DMA

Open

5 & 6, 7 & 8

Channel B/channel 2, half duplex channel A no DMA

Open

9 & 10, 11 & 12

Channel B/channel 3, half duplex channel A no DMA

Open

13 & 14, 15 & 16

Note: Pins designated should be in the closed position.

DMA SELECTION (TWO CHANNELS HALF DUPLEX)

Setting

E4

E5

E6

E7

Channel A/channel 1, half duplex

Open

5 & 6, 7 & 8

Open

13 & 14, 15 & 16

Channel B/channel 3, half duplex

Open

5 & 6, 7 & 8

Open

13 & 14, 15 & 16

Channel A/channel 0, half duplex

Open

1 & 2, 3 & 4

Open

9 & 10, 11 & 12

Channel B/channel 2, half duplex

Open

1 & 2, 3 & 4

Open

9 & 10, 11 & 12

Note: Pins designated should be in the closed position.

DMA SELECTION (FOUR CHANNELS FULL DUPLEX)

Setting

E4

E5

E6

E7

Channel A/channel 1, receive data

13 & 14, 15 & 16

5 & 6, 7 & 8

9 & 10, 11 & 12

1 & 2, 3 & 4

Channel A/channel 3, transmit data

13 & 14, 15 & 16

5 & 6, 7 & 8

9 & 10, 11 & 12

1 & 2, 3 & 4

Channel B/channel 0, receive

13 & 14, 15 & 16

5 & 6, 7 & 8

9 & 10, 11 & 12

1 & 2, 3 & 4

Channel B/channel 2, transmit

13 & 14, 15 & 16

5 & 6, 7 & 8

9 & 10, 11 & 12

1 & 2, 3 & 4

Note: Pins designated should be in the closed position.

DMA SELECTION (CHANNEL A FULL DUPLEX)

Setting

E4

E5

Channel A/channel 1, receive data

13 & 14, 15 & 16

5 & 6, 7 & 8

Channel A/channel 3, transmit data

13 & 14, 15 & 16

5 & 6, 7 & 8

Note: Pins designated should be in the closed position.

DMA SELECTION (CHANNEL B FULL DUPLEX)

Setting

E6

E7

Channel B/channel 1, receive data

13 & 14, 15 & 16

5 & 6, 7 & 8

Channel B/channel 3, transmit data

13 & 14, 15 & 16

5 & 6, 7 & 8

Note: Pins designated should be in the closed position.

DMA SELECTION (NO DMA SELECTED)

Setting

E4

E5

E6

E7

No DMA

Open

Open

Open

Open

TRANSMIT CLOCK SELECTION

Setting

E8

Channel A RTS enabled (RS-485)

Pins 1 & 2 closed

Transmit clock output channel A

Pins 3 & 4 closed

Transmit clock input channel A

Pins 5 & 6 closed

Channel B RTS enabled (RS-485)

Pins 7 & 8 closed

Transmit clock output channel B

Pins 9 & 10 closed

Transmit clock input channel B

Pins 11 & 12 closed