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ASC-1 (BK09A)

OLIVETTI

ASC-1 (BK09A)

Data bus:

16-bit ISA

Size:

Half-length, full-height card

Hard drive supported:

Up to seven SCSI devices

Floppy drives supported:

None

CONNECTIONS

Function

Location

50-pin SCSI connector - external

CN1

USER CONFIGURABLE SETTINGS

Function

Location

Setting

Synchronous Negotiation disabled

J5/1

Open

 

Synchronous Negotiation enabled

J5/1

Closed

SCSI parity check enabled

J5/2

Open

 

SCSI parity check disabled

J5/2

Closed

Factory configured - do not alter

J5/3

Open

On-board BIOS enabled

J6/1

Closed

 

On-board BIOS disabled

J6/1

Open

Factory configured - do not alter

J6/2

N/A

Factory configured - do not alter

J6/3

N/A

Factory configured - do not alter

J6/4

N/A

Auto-sense disabled

J6/5

Closed

 

Auto-sense enabled

J6/5

Open

Factory configured - do not alter

J7/1

N/A

BIOS ADDRESS SELECTION (MAINBOARDS M480-10 AND M480-20 ONLY)

Address

J7/7

J7/8

C8000-CBFFFh

Closed

Closed

CC000-CFFFFh

Closed

Open

D8000-DBFFFh

Open

Closed

DC000-DFFFFh

Open

Open

BASE I/O ADDRESS SELECTION

Address

J7/2

J7/3

J7/4

 

130h

Closed

Open

Closed

 

134h

Open

Open

Closed

 

230h

Closed

Closed

Open

 

234h

Open

Closed

Open

330h

Closed

Open

Open

 

334h

Open

Open

Open

WAIT STATE SELECTION (MAINBOARDS M480-10 AND M480-20 ONLY)

Setting

J7/5

J7/6

IOCHRDY signal disabled

Open

Open

 

100 ns

Closed

Open

 

200 ns

Open

Closed

 

300 ns

Closed

Closed

SCSI ID SELECTION

SCSI ID

J5/4

J5/5

J5/6

 

0

Closed

Closed

Closed

 

1

Open

Closed

Closed

 

2

Closed

Open

Closed

 

3

Open

Open

Closed

 

4

Closed

Closed

Open

 

5

Open

Closed

Open

 

6

Closed

Open

Open

7

Open

Open

Open

AT INTERRUPT CHANNEL SELECTION

IRQ

J5/9

J5/10

J5/11

J9/9

J9/10

J9/11

J9/12

J9/13

J9/14

 

9

Open

Open

Open

Closed

Open

Open

Open

Open

Open

 

10

Closed

Open

Open

Open

Closed

Open

Open

Open

Open

11

Open

Closed

Open

Open

Open

Closed

Open

Open

Open

 

12

Closed

Closed

Open

Open

Open

Open

Closed

Open

Open

 

14

Open

Open

Closed

Open

Open

Open

Open

Closed

Open

 

15

Closed

Open

Closed

Open

Open

Open

Open

Open

Closed

DMA SELECTION

Channel

J5/7

J5/8

J9/1

J9/2

J9/3

J9/4

 

0

N/A

N/A

Closed

Open

Open

Open

5

Open

Closed

Open

Closed

Open

Open

 

6

Closed

Open

Open

Open

Closed

Open

 

7

Open

Open

Open

Open

Open

Closed

Note: Jumpers J9/5 through J9/8 are also used to select DMA Channel.

DMA SELECTION (CONTINUED)

Channel

J9/5

J9/6

J9/7

J9/8

 

0

Closed

Open

Open

Open

5

Open

Closed

Open

Open

 

6

Open

Open

Closed

Open

 

7

Open

Open

Open

Closed

Note: Jumpers J5/7, J5/8, and J9/1 through J9/4 are also used to select DMA Channel.

DMA TRANSFER SPEED SELECTION

Speed

J5/12

J5/13

5.0 MB/s

Open

Open

 

5.7 MB/s

Closed

Open

 

6.7 MB/s

Open

Closed

 

8.0 MB/s

Closed

Closed

MISCELLANEOUS TECHNICAL NOTES

Jumper J6/1 should not be inserted when the system is in AT configuration with the BIOS of the magnetic peripherals on the mainboard.