GSI, INC.
MODEL 21 (1533-21-09-1)
|
Card Type |
Hard drive controller |
|
Hard Drives supported |
Two EIDE drives |
|
Floppy drives supported |
Four 360KB, 720KB, 1.2MB, 1.44MB or 2.88MB drives |
|
Data Bus |
16-bit ISA |
|
Card Size |
Half-length, half-height |
|
CONNECTIONS | |||
|
Function |
Label |
Function |
Label |
|
34-pin secondary floppy connector |
J2 |
40-pin EIDE connector |
J6 |
|
34-pin primary floppy connector |
J3 |
Drive active LED |
J8 |
|
Auxiliary power connector |
J5 | ||
|
Note:J2 supports 2.88MB as well as standard floppy drives. J3 supports only standard floppy drives. | |||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
Factory configured - do not alter |
J4 |
Pins 1 & 2 open | |
|
Factory configured - do not alter |
J4 |
Pins 2 & 3 open | |
|
Primary mode enabled |
J4 |
Pins 5 & 6 closed | |
|
Secondary mode enabled |
J4 |
Pins 4 & 5 closed | |
|
Note:Primary mode selects IRQ 14, I/O address 1F0h & 3F6h for hard drives, IRQ 6, DMA 2, I/O address 3F0h for floppy drives Secondary mode selects IRQ 15, I/O address 170h & 376h for hard drives, IRQ 6, DMA 2, I/O address 370h for floppy drives. | |||
|
BIOS ADDRESS SELECTION | |
|
Address |
J4 |
|
C8000h |
Pins 7 & 8, 10 & 11 closed |
|
CC000h |
Pins 7 & 8, 11 & 12 closed |
|
D0000h |
Pins 8 & 9, 10 & 11 closed |
|
E0000h |
Pins 8 & 9, 11 & 12 closed |