...because we can't all be on the bleeding edge...





ULTRA12F

ULTRASTOR CORPORATION

ULTRA12F

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

JP1

open

Factory configured - do not alter

JP2

open

Factory configured - do not alter

JP3

closed

Reserved

JP4

pins 1 & 2 open

Cache enabled

JP4

pins 3 & 4 open

 

Cache disabled

JP4

pins 3 & 4 closed

32KB cache RAM Capacity

JP5

pins 1 & 2 closed

 

8KB cache RAM Capacity

JP5

pins 2 & 3 closed

 

Must be closed to enabled 8K/32K Data Buffer

JP6

pins 1 & 2 closed

 

Reserved, must be left "open"

JP6

pins 2 & 3 closed

 

Factory use only (hard-wired)

JP7

pins 1 & 2 closed

 

Reserved

JP9

open

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 a 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 a 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 Precomp. 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

Hard Drive Interrupt is IRQ14

JP20

pins 2 & 3 closed

 

Hard Drive Interrupt is IRQ15

JP20

pins 1 & 2 closed