ULTRA12C Hard Disk/Floppy Controller Settings and Configuration
ULTRASTOR CORPORATION
ULTRA12C
Data bus: 16-bit, PC/AT
Size: Full-length, full-height card
Hard drives supported: Two ESDI drives
Floppy drives supported: Two 360KB, 720KB, 1.2MB, or 1.44MB
Maximum heads/cyl.: 16 heads and 1024 cylinders
CONNECTIONS | |
Function | Location |
34-pin data cable connector-floppy drive | J1 |
20-pin data cable connector-drive 1 | J3 |
20-pin data cable connector-drive 0 | J4 |
34-pin control cable connector-hard drive | J5 |
4-pin connector-drive active LED | J6 |
BIOS ADDRESS | ||||
Address | JP10/jumper 1 | JP10/jumper 2 | JP10/jumper 3 | |
Disabled | open | open | open | |
| » | C800h | open | open | closed |
CC00h | open | closed | open | |
D000h | open | closed | closed | |
D400h | closed | open | open | |
D800h | closed | open | closed | |
DC00h | closed | closed | open | |
Disabled | closed | closed | closed | |
USER CONFIGURABLE SETTINGS | |||
Function | Location | Setting | |
| » | Factory configured - do not alter | JP2 | open |
| » | Factory configured - do not alter | JP3 | closed |
| » | Factory configured - do not alter | JP4 | open |
Battery back-up | JP5 and JP6 | closed | |
| » | Supports a third floppy on DS2 with a twisted cable | JP11/jumper 1 | open |
Supports a third floppy on DS4 with a straight cable | JP11/jumper 1 | closed | |
| » | Floppy drive 1 is an AT type drive (5.25" or 3.5") | JP11/jumper 2 | open |
Floppy drive 1 is a 3.5" PS/2 type drive | JP11/jumper 2 | closed | |
| » | Floppy drive 0 is an AT type drive (5.25" or 3.5") | JP11/jumper 3 | open |
Floppy drive 0 is a 3.5" PS/2 type drive | JP11/jumper 3 | closed | |
| » | Floppy drive port address is 3F0-3F7h | JP11/jumper 4 | open |
Floppy drive port address is 370-377h | JP11/jumper 4 | closed | |
| » | Single speed floppy drive supported | JP11/jumper 5 | open |
Dual speed floppy drive supported | JP11/jumper 5 | closed | |
| » | Floppy drive Precomp is scaled by data rate:
500KHz=125ns; 300KHz=208ns; 250KHz=250ns | JP11/jumper 6 | open |
Floppy drive precompensation is 125ns. | JP11/jumper 6 | closed | |
| » | Hard drive port address is 1F0-1F7h | JP12 | open |
Hard drive port address is 170-177h | JP12 | closed | |
| » | Chassis ground not connected to logic ground | JP16 | open |
Chassis ground is connected to logic ground | JP16 | closed | |
| » | Floppy drive enabled | JP17 | closed |
Floppy drive disabled | JP17 | open | |
| » | Factory configured - do not alter | JP20/jumpers 2-5 | open |
| » | Hard Drive Interrupt is IRQ14 | JP21 | pins 2 & 3 closed |
Hard Drive Interrupt is IRQ15 | JP21 | pins 1 & 2 closed | |
CACHE CONFIGURATION | ||
SIMM Size | Jumper JP22 | Jumper JP22A |
256KB | closed | closed |
1MB | open | closed |
4MB | closed | open |
My Books
