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 |