
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

