SONY CORPORATION

CDB-231

Card Type

CD-ROM host card

Chip Set

Unidentified

Maximum Onboard Memory

None

I/O Options

Host bus connector (2)

Data Bus

8-bit ISA

Floppy drives supported

None

CONNECTIONS

Function

Label

Function

Label

Internal host bus connector

CN1

External host bus connector

CN2

BASE I/O ADDRESS SELECTION

Setting

SW1/1

SW1/2

SW1/3

SW1/4

SW1/5

SW1/6

SW1/7

SW1/8

 

000h

On

On

On

On

On

On

On

On

 

004h

Off

On

On

On

On

On

On

On

 

008h

On

Off

On

On

On

On

On

On

 

00Ch

Off

Off

On

On

On

On

On

On

 

010h

On

On

Off

On

On

On

On

On

»

340h

On

On

On

On

Off

On

Off

Off

 

3ECh

Off

Off

On

Off

Off

Off

Off

Off

 

3F0h

On

On

Off

Off

Off

Off

Off

Off

 

3F4h

Off

On

Off

Off

Off

Off

Off

Off

 

3F8h

On

Off

Off

Off

Off

Off

Off

Off

 

3FCh

Off

Off

Off

Off

Off

Off

Off

Off

Note:A total of 256 base address settings are available. The switches are a binary representation of the decimal memory addresses. SW1/8 is the Most Significant Bit and switch SW1/1 is the Least Significant Bit. The switches have the following decimal values: SW1/8=512, SW1/7=256, SW1/6=128, SW1/5=64, SW1/4=32, SW1/3=16, SW1/2=8, SW1/1=4. Turn off the switches and add the values of the switches to obtain the correct memory address. (Off=1, On=0)

INTERRUPT SELECTION

IRQ

SW2/1

SW2/2

SW2/3

SW2/4

SW2/5

SW2/6

 

2

On

Off

Off

Off

Off

Off

 

3

Off

On

Off

Off

Off

Off

 

4

Off

Off

On

Off

Off

Off

 

5

Off

Off

Off

On

Off

Off

»

None

Off

Off

Off

Off

Off

Off

DMA CHANNEL SELECTION

Channel

SW3/1

SW3/2

SW3/3

SW3/4

SW3/5

SW3/6

 

1

On

Off

Off

On

Off

Off

 

2

Off

On

Off

Off

On

Off

 

3

Off

Off

On

Off

Off

On

»

None

Off

Off

Off

Off

Off

Off