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

[Image]

                           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             JP1               open
      alter

  »   Factory configured - do not             JP2               open
      alter

  »   Factory configured - do not             JP3              closed
      alter

  »   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               JP6            pins 1 & 2
      8K/32K Data Buffer                                       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         JP11/jumper 1          open
      DS2 with a twisted cable

      Supports a third floppy on         JP11/jumper 1         closed
      DS4 with a straight cable

  »   Floppy drive 1 is a AT type        JP11/jumper 2          open
      drive (5.25" or 3.5")

      Floppy drive 1 is a 3.5" PS/2      JP11/jumper 2         closed
      type drive

  »   Floppy drive 0 is a AT type        JP11/jumper 3          open
      drive (5.25" or 3.5")

      Floppy drive 0 is a 3.5" PS/2      JP11/jumper 3         closed
      type drive

  »   Floppy drive port address is       JP11/jumper 4          open
      3F0-3F7h

      Floppy drive port address is       JP11/jumper 4         closed
      370-377h

  »   Single speed floppy drive          JP11/jumper 5          open
      supported

      Dual speed floppy drive            JP11/jumper 5         closed
      supported

  »   Floppy drive Precomp. is           JP11/jumper 6          open
      scaled by data rate:

      500KHz=125ns; 300KHz=208ns;
      250KHz=250ns

      Floppy drive Precomp. is           JP11/jumper 6         closed
      125ns.

  »   Hard drive port address is             JP12               open
      1F0-1F7h

      Hard drive port address is             JP12              closed
      170-177h

  »   Chassis ground not connected           JP16               open
      to logic ground

      Chassis ground is connected            JP16              closed
      to logic ground

  »   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