HwMuseum | Index

ARCHIVE CORPORATION

SC499

Card Type

Tape drive controller

Chip Set

Unidentified

Maximum Onboard Memory

Unidentified

I/O Options

1/4 inch cartridge tape drive

Tape Format

QIC 11, QIC 24

Data Bus

8-bit ISA

Card Size

Full-length, full-height

CONNECTIONS

Function

Label

Function

Label

Tape drive connector - external

J2

Tape drive connector - internal

J3

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

Factory configured - do not alter

C

Open

»

Track selection - 9

Y

Closed

 

Track selection - 4

Y

Open

»

Tape format - QIC-24

CC

Closed

 

Tape format - QIC-11

CC

Open

»

Tape speed 90 IPS

DD

Open

 

For Manufacturing test only

DD

Closed

»

Factory configured - do not alter

FF

Open

»

Factory configured - do not alter

HH

Open

»

Power-on test enabled

KK

Closed

 

Power-on test disabled

KK

Open

»

Factory configured - do not alter

NN

Open

»

Ready interrupt enabled

RR

Open

 

Ready interrupt disabled

RR

Closed

DMA CHANNEL SELECTION

Channel

JP6

JP5

JP4

JP3

JP2

JP1

»

1

Closed

Open

Open

Closed

Open

Open

 

2

Open

Closed

Open

Open

Closed

Open

 

3

Open

Open

Closed

Open

Open

Closed

BASE I/O ADDRESS SELECTION

Setting

A3

A4

A5

A6

A7

A8

A9

 

0h

Off

Off

Off

Off

Off

Off

Off

 

8h

On

Off

Off

Off

Off

Off

Off

 

10h

Off

On

Off

Off

Off

Off

Off

 

18h

On

On

Off

Off

Off

Off

Off

 

20h

Off

Off

On

Off

Off

Off

Off

»

200h

Off

Off

Off

Off

Off

Off

On

 

3D8h

On

On

Off

On

On

On

On

 

3E0h

Off

Off

On

On

On

On

On

 

3E8h

On

Off

On

On

On

On

On

 

3F0h

Off

On

On

On

On

On

On

 

3F8h

On

On

On

On

On

On

On

Note:

A total of 128 base address settings are available. The jumpers are a binary representation of the decimal memory addresses. Jumper A9 is the Most Significant Bit and jumper A3 is the Least Significant Bit. The jumpers have the following decimal values: A9=512, A8=256, A7=128, A6=64, A5=32, A4=16, A3=8. Turn off the jumpers and add the values of the jumpers and convert to hexadecimal to obtain the correct memory address. (Off=0, On=1)

INTERRUPT SELECTION

IRQ

JP7

JP8

JP9

JP10

JP11

JP12

 

IRQ2

Open

Open

Open

Open

Open

Closed

»

IRQ3

Open

Open

Open

Open

Closed

Open

 

IRQ4

Open

Open

Open

Closed

Open

Open

 

IRQ5

Open

Open

Closed

Open

Open

Open

 

IRQ6

Open

Closed

Open

Open

Open

Open

 

IRQ7

Closed

Open

Open

Open

Open

Open

DIAGNOSTIC LED(S)

Note: The function of the LEDs is unidentified, however on power up or reset all LEDs will light up. When the reset or self test is completed the LEDs will turn off.