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COMPATICARD IV IO card Settings and Configuration






MICRO SOLUTIONS, INC.

COMPATICARD IV

Card Type

Floppy drive controller

Chipset/Controller

Intel

I/O Options

Floppy drive interface (supports up to four drives)

Maximum DRAM

N/A

CONNECTIONS

Purpose

Location

Purpose

Location

Floppy drive interface (Internal)

P2

Floppy drive interface (External)

P4

Floppy drive interface (Internal)

P3

   

FACTORY CONFIGURED - DO NOT ALTER

Switch

Position

SW1/switch 4

Off

CONTROLLER ADDRESS SELECTION

Controller

J1/Pins 1 & 2

J1/Pins 3 & 4

J1/Pins 5 & 6

J1/Pins 7 & 8

First

Closed

Open

Open

Open

 

Second

Open

Closed

Open

Open

 

Third

Open

Open

Closed

Open

 

Fourth

Open

Open

Open

Closed

EXTERNAL POWER CONFIGURATION

Power convention

+5V

+12V

GND

J3

J4

J5

J6

Disabled

None

None

N/A

Pins 1 & 2

Pins 1 & 2

Pins 1 & 2

Pins 1 & 2

 

Micro Solutions

Pin 2

Pin 1

Pins 20-37

Pins 1 & 2

Pins 1 & 2

Pins 2 & 3

Pins 2 & 3

 

Alternate

Pin 4

Pin 1

Pins 2 & 3

Pins 2 & 3

Pins 2 & 3

Pins 1 & 2

Pins 2 & 3

Note: Pins designated should be in the closed position. For most applications, power is supplied by a power supply in the external drive cabinet and the Power Convention should be disabled.

BIOS ADDRESS SELECTION

Address

SW1/1

SW1/2

SW1/3

CE00:0000h

Off

On

Off

 

CC00:0000h

Off

Off

On

 

D000:0000h

Off

On

On

 

D800:0000h

On

Off

Off

 

DE00:0000h

On

Off

On

 

E800:0000h

On

On

Off

 

EE00:0000h

On

On

On

 

Disabled

Off

Off

Off

DMA CHANNEL SELECTION

DMA

J2/7

J2/8

J2/9

J2/10

J2/11

J2/12

SW1/5

SW1/6

2

On

Closed

On

On

Closed

On

On

Off

 

2

On

Closed

On

On

Closed

On

Off

Off

 

1

Closed

On

On

Closed

On

On

Off

On

 

3

On

On

Closed

On

On

Closed

On

On

Note: When both switches are Off, the DMA is set for 2, and the interrupt must be set for IRQ6.

INTERRUPT SELECTION

IRQ

J2/1

J2/2

J2/3

J2/4

J2/5

J2/6

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

DUAL SPEED DRIVE CONFIGURATION

1.2MB Drive Type

SW1/7

Single Speed

Off

 

Dual Speed

On

AUTO BOOT CONFIGURATION

Auto Boot

SW1/7

Enabled

On

 

Disabled

Off

Note: When Auto Boot is enabled, Compaticard IV will search each drive installed looking for a DOS system disk. If no System disk is found, system boot will proceed as normal. If a DOS system disk is encountered, system will boot from that drive.

DRIVE TYPE SELECTION

Drive Type

Position #

Cable Type Used

Connection

Setting

360KB/1.2MB

0

Twisted

P2

SW2/1 Off, SW2/2 on

1.4MB

1

Straight

P2

SW2/3 on, SW2/4 Off

2.8MB

2

Twisted

P3 or P4

SW2/5 on, SW2/6 on

None

3

Straight

P3 or P4

SW2/7 Off, SW2/8 Off








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