
MICRO EQUIPMENT CORPORATION

UN-1081 VL

  Data bus:                  32-bit VL-Bus

  Size:                      Three/quarter, full-height card

  Hard drive supported:      Two IDE (AT) interface drives

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

[Image]

                                CONNECTIONS

                    Function                             Location

  4-pin connector - drive active LED                        J1

  40-pin IDE (AT) interface connector                       J2

  34-pin control cable connector - floppy drive             J3

  16-pin game port - internal                               J4

  10-pin serial port - external (via ribbon                 J5
  cable)

  10-pin serial port - internal                             J6

  25-pin parallel port - external                           P1

                        USER CONFIGURABLE SETTINGS

                 Function                     Location         Setting

     HDD IRQ14 select                      W6/pins 1 & 2      closed

      HDD IRQ15 select                      W6/pins 2 & 3      closed

     Floppy drive primary address is       W7/pins 2 & 3      closed
      3F0h - 3F7h

      Floppy drive secondary address is     W7/pins 1 & 2      closed
      370h - 377h

     IDE (AT) primary address is 1F0h -    W8/pins 2 & 3      closed
      1F7h, & 3F6h - 3F7h

      IDE (AT) secondary address is 170h    W8/pins 1 & 2      closed
      - 177h, & 376h - 377h

     IDE (AT) interface enabled            W9/pins 1 & 2      closed

      IDE (AT) interface disabled           W9/pins 2 & 3      closed

     Floppy controller enabled             W10/pins 1 &       closed
                                                 2

      Floppy controller disabled            W10/pins 2 &       closed
                                                 3

     Printer port unidirectional select    W17/pins 1 &       closed
                                                 2

      Printer port bidirectional select     W17/pins 2 &        open
                                                 3

     Game port enabled                         W26            closed

      Game port disabled                        W26             open

                   IDE (AT) TRANSFER RATE CONFIGURATION

     Trans. Rate       VL Speed     W1      W2      W3      W4       W5

       3.9MB/sec       33MHz     1 & 2   2 & 3   2 & 3   2 & 3   1 & 2

        3.3MB/sec       33MHz     2 & 3   2 & 3   1 & 2   2 & 3   1 & 2

        3.3MB/sec       <33MHz     1 & 2   2 & 3   1 & 2   2 & 3   2 & 3

        3.5MB/sec       33MHz     2 & 3   1 & 2   2 & 3   2 & 3   1 & 2

        3.6MB/sec       >33MHz     1 & 2   1 & 2   2 & 3   2 & 3   2 & 3

        3.7MB/sec       33MHz     2 & 3   1 & 2   1 & 2   2 & 3   1 & 2

        3.8MB/sec       >33MHz     1 & 2   1 & 2   1 & 2   2 & 3   2 & 3

        4.2MB/sec       33MHz     1 & 2   2 & 3   1 & 2   2 & 3   1 & 2

        4.2MB/sec       >33MHz     2 & 3   2 & 3   2 & 3   1 & 2   2 & 3

        4.4MB/sec       33MHz     1 & 2   1 & 2   2 & 3   2 & 3   1 & 2

        4.5MB/sec       >33MHz     2 & 3   2 & 3   1 & 2   1 & 2   2 & 3

        4.8MB/sec       33MHz     1 & 2   1 & 2   1 & 2   2 & 3   1 & 2

        5.0MB/sec       >33MHz     2 & 3   1 & 2   2 & 3   1 & 2   2 & 3

        5.1MB/sec       33MHz     2 & 3   2 & 3   2 & 3   1 & 2   1 & 2

        5.6MB/sec       33MHz     2 & 3   2 & 3   1 & 2   1 & 2   1 & 2

        5.6MB/sec       >33MHz     2 & 3   1 & 2   1 & 2   1 & 2   2 & 3

               IDE (AT) TRANSFER RATE CONFIGURATION (CONT)

  Trans. Rate    VL Speed     W1        W2       W3        W4       W5

   6.1MB/sec      33MHz     2 & 3    1 & 2     2 & 3    1 & 2     1 & 2

   6.3MB/sec      >33MHz     1 & 2    2 & 3     2 & 3    1 & 2     2 & 3

   6.7MB/sec      33MHz     2 & 3    1 & 2     1 & 2    1 & 2     1 & 2

   7.2MB/sec      >33MHz     1 & 2    1 & 2     1 & 2    1 & 2     2 & 3

   7.4MB/sec      33MHz     1 & 2    2 & 3     2 & 3    1 & 2     1 & 2

   8.3MB/sec      33MHz     1 & 2    1 & 2     1 & 2    1 & 2     1 & 2

  Note: Pins designated are in the closed position.

                        SERIAL PORT 1 CONFIGURATION

             COM                      W11                    W12

          COM1 (3F8h)         pins 1 & 2 closed      pins 2 & 3 closed

           COM3 (3E8h)         pins 2 & 3 closed      pins 1 & 2 closed

           COM4 (2E8h)         pins 1 & 2 closed      pins 1 & 2 closed

            Disabled           pins 2 & 3 closed      pins 2 & 3 closed

                        SERIAL PORT 2 CONFIGURATION

             COM                      W13                    W14

          COM2 (2F8h)         pins 1 & 2 closed      pins 2 & 3 closed

           COM3 (3E8h)         pins 1 & 2 closed      pins 1 & 2 closed

           COM4 (2E8h)         pins 2 & 3 closed      pins 1 & 2 closed

            Disabled           pins 2 & 3 closed      pins 2 & 3 closed

                        PARALLEL PORT CONFIGURATION

             LPT                      W15                    W16

          LPT1 (378h)         pins 2 & 3 closed      pins 1 & 2 closed

           LPT2 (278h)         pins 1 & 2 closed      pins 2 & 3 closed

           LPT3 (3BCh)         pins 1 & 2 closed      pins 1 & 2 closed

            Disabled           pins 2 & 3 closed      pins 2 & 3 closed

                     SERIAL PORT 1 INTERRUPT SELECTION

       IRQ                W18                W19               W20

          4            closed              open               open

           3             open              closed              open

           5             open               open              closed

                     SERIAL PORT 2 INTERRUPT SELECTION

       IRQ                W21                W22               W23

          3            closed              open               open

           4             open              closed              open

           5             open               open              closed

                     PARALLEL PORT INTERRUPT SELECTION

           IRQ                     W24                      W25

             7                   closed                    open

              5                    open                    closed

