GSI, INC.
MODEL 12
|
Card Type |
Floppy drive/Tape controller |
|
Chip Set |
Unidentified |
|
Maximum Onboard Memory |
None |
|
I/O Options |
Floppy drive interface (2) |
|
Data Bus |
8-bit ISA |
|
Floppy drives supported |
Four 360KB, 720KB, 1.2MB, 1.44MB or 2.88MB drives |
|
CONNECTIONS | |||
|
Function |
Label |
Function |
Label |
|
2.88 Mb floppy/tape drive interface |
J2 |
Floppy drive interface |
J3 |
|
BIOS ADDRESS SELECTION | ||
|
Address |
J4 | |
|
C800h - C9FFh |
Pins 5 &6, 9 & 10 closed | |
|
CC00h - CDFFh |
Pins 5 & 6, 11 & 12 closed | |
|
D000h - 1DFFh |
Pins 7 & 8, 9 & 10 closed | |
|
E000h - E1FFh |
Pins 7 & 8, 11 & 12 closed | |
|
FLOPPY DRIVE CONFIGURATION | ||
|
Setting |
J4 | |
|
Primary |
Pins 1 & 2 closed | |
|
Secondary |
Pins 3 & 4 closed | |
|
INTERRUPT SELECTION | ||
|
IRQ |
J6 | |
|
3 |
Pins 1 & 2 closed | |
|
5 |
Pins 3 & 4 closed | |
|
6 |
Pins 5 & 6 closed | |
|
DMA CHANNEL SELECTION | ||
|
Channel |
J5 | |
|
1 |
Pins 1 & 2 closed | |
|
2 |
Pins 3 & 4 closed | |
|
3 |
Pins 5 & 6 closed | |