LARK ASSOCIATES, INC.

LRK-330/331

  Data bus:                  16-bit ISA

  Size:                      Three-quarter length, full-height card

  Hard drive supported:      Two ESDI drives

  Floppy drives supported:   Two 360KB, 720KB, 1.2MB, or 1.44MB drives

[Image]

                           CONNECTIONS

                  Function                        Location

  34-pin 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

                        USER CONFIGURABLE SETTINGS

                Function                     Location          Setting

  »   Primary hard drive address is             W1               open
      1F0h-1F7h

      Primary floppy drive address is
      370h-3F7h

  »   Secondary hard drive address is           W1              closed
      170h-177h

      Secondary floppy drive address
      is 370h-377h

  »   Floppy drive is single speed              W2               open

      Floppy drive is dual speed                W2              closed

  »   Interrupt delay disabled                  W3               open

      Interrupt delay enabled                   W3              closed

                  USER CONFIGURABLE SETTINGS (CONTINUED)

                Function                     Location          Setting

  »   Factory configured - do not               W4               N/A
      alter

  »   IDE(AT) IRQ 14 select                     W9              closed

      IDE(AT) IRQ 15 select                     W10             closed

  »   Floppy drive interface enabled            W11              open

      Floppy drive interface disabled           W11             closed

  Note: W12 is unidentified

                          BIOS ADDRESS SELECTION

       Address             W5           W6           W7           W8

  »       C800h          closed        open         open         open

          CC00h           open        closed        open         open

          D000h           open         open        closed        open

          D400h           open         open         open        closed

         Disabled         open         open         open         open