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       # MICRO EQUIPMENT CORPORATION
       
          UN-1083E
       
          +------------------------------------------------------------+
          |------------------------------------------------------------|
          | Data bus:         | 32-bit VL-Bus                          |
          |-------------------+----------------------------------------|
          | Size:             | Three/quarter-length, full-height card |
          |-------------------+----------------------------------------|
          | Hard drive        | Four IDE (AT) interface drives         |
          | supported:        |                                        |
          |-------------------+----------------------------------------|
          | Floppy drives     | Two 360KB, 720KB, 1.2MB, or 1.44MB     |
          | supported:        | drives                                 |
          +------------------------------------------------------------+
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |                   Function                    |  Location  |
          |-----------------------------------------------+------------|
          | 40-pin Primary IDE (AT) interface connector   |    CN1     |
          |-----------------------------------------------+------------|
          | 40-pin Secondary IDE (AT) interface connector |    CN2     |
          |-----------------------------------------------+------------|
          | 34-pin control cable connector - floppy drive |    CN3     |
          |-----------------------------------------------+------------|
          | 16-pin game port - internal                   |    CN4     |
          |-----------------------------------------------+------------|
          | 10-pin serial port - internal                 |    COMA    |
          |-----------------------------------------------+------------|
          | 10-pin serial port - internal                 |    COMB    |
          |-----------------------------------------------+------------|
          | 2-pin connector - drive active LED            |    LED1    |
          |-----------------------------------------------+------------|
          | 25-pin parallel port - external               |     P1     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |             Function              |   Location   | Setting |
          |-----------------------------------+--------------+---------|
          | » | Factory configured - do not   |      W1      |   N/A   |
          |   | alter                         |              |         |
          |---+-------------------------------+--------------+---------|
          | » | Factory configured - do not   |      W2      |   N/A   |
          |   | alter                         |              |         |
          |---+-------------------------------+--------------+---------|
          | » | Factory configured - do not   |      W3      |   N/A   |
          |   | alter                         |              |         |
          |---+-------------------------------+--------------+---------|
          | » | Factory configured - do not   |      W4      |   N/A   |
          |   | alter                         |              |         |
          |---+-------------------------------+--------------+---------|
          | » | Factory configured - do not   |      W5      |   N/A   |
          |   | alter                         |              |         |
          |---+-------------------------------+--------------+---------|
          | » | IOCHRDY 759AF select          | W6/pins 2 &  | closed  |
          |   |                               |      3       |         |
          |---+-------------------------------+--------------+---------|
          |   | IOCHRDY ISA select            | W6/pins 1 &  | closed  |
          |   |                               |      2       |         |
          |---+-------------------------------+--------------+---------|
          | » | Primary IDE (AT) interface    | W8/pins 2 &  | closed  |
          |   | enabled                       |      3       |         |
          |---+-------------------------------+--------------+---------|
          |   | Primary IDE (AT) interface    | W8/pins 1 &  | closed  |
          |   | disabled                      |      2       |         |
          |---+-------------------------------+--------------+---------|
          | » | Secondary IDE (AT) interface  | W9/pins 2 &  | closed  |
          |   | enabled                       |      3       |         |
          |---+-------------------------------+--------------+---------|
          |   | Secondary IDE (AT) interface  | W9/pins 1 &  | closed  |
          |   | disabled                      |      2       |         |
          |---+-------------------------------+--------------+---------|
          | » | Speed 50MHz select            | W10/pins 2 & | closed  |
          |   |                               |      3       |         |
          |---+-------------------------------+--------------+---------|
          |   | Speed 33MHz select            | W10/pins 1 & | closed  |
          |   |                               |      2       |         |
          |---+-------------------------------+--------------+---------|
          | » | Factory configured - do not   |     W13      |   N/A   |
          |   | alter                         |              |         |
          |---+-------------------------------+--------------+---------|
          | » | Floppy drive order A:, B:     | W26/pins 1 & | closed  |
          |   | normal                        |      2       |         |
          |---+-------------------------------+--------------+---------|
          |   | Floppy drive order A:, B:     | W26/pins 2 & | closed  |
          |   | exchange                      |      3       |         |
          |---+-------------------------------+--------------+---------|
          | » | Floppy drive address is       | W27/pins 2 & | closed  |
          |   | 3F0h-3F7h                     |      3       |         |
          |---+-------------------------------+--------------+---------|
          |   | Floppy drive address is       | W27/pins 1 & | closed  |
          |   | 370h-377h                     |      2       |         |
          |---+-------------------------------+--------------+---------|
          | » | Floppy controller enabled     | W28/pins 1 & | closed  |
          |   |                               |      2       |         |
          |---+-------------------------------+--------------+---------|
          |   | Floppy controller disabled    | W28/pins 2 & | closed  |
          |   |                               |      3       |         |
          |---+-------------------------------+--------------+---------|
          | » | Factory configued - do not    |     W32      |   N/A   |
          |   | alter                         |              |         |
          |---+-------------------------------+--------------+---------|
          | » | Factory configured - do not   |     W33      |   N/A   |
          |   | alter                         |              |         |
          |---+-------------------------------+--------------+---------|
          | » | Factory configured - do not   |     W34      |   N/A   |
          |   | alter                         |              |         |
          |---+-------------------------------+--------------+---------|
          | » | Game port enabled             |     W46      | closed  |
          |---+-------------------------------+--------------+---------|
          |   | Game port disabled            |     W46      |  open   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |         IDE (AT) TIMMING & MODE CONFIGURATION          |
          |------------------------------------------------------------|
          |  Timing   |  Mode  |        W11        |        W12        |
          |-----------+--------+-------------------+-------------------|
          |   240ns   |   3    | pins 1 & 2 closed | pins 1 & 2 closed |
          |-----------+--------+-------------------+-------------------|
          |   400ns   |   2    | pins 1 & 2 closed | pins 2 & 3 closed |
          |-----------+--------+-------------------+-------------------|
          |   500ns   |   1    | pins 2 & 3 closed | pins 1 & 2 closed |
          |-----------+--------+-------------------+-------------------|
          |   600ns   |   0    | pins 2 & 3 closed | pins 2 & 3 closed |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  HARD DRIVE DMA SELECTION                  |
          |------------------------------------------------------------|
          |Channel |  W14   |  W15   |  W16   |  W17   |  W18  |  W19  |
          |--------+--------+--------+--------+--------+-------+-------|
          |   5    |  open  |  open  | closed |  open  | open  |closed |
          |--------+--------+--------+--------+--------+-------+-------|
          |   6    |  open  | closed |  open  |  open  |closed | open  |
          |--------+--------+--------+--------+--------+-------+-------|
          |   7    | closed |  open  |  open  | closed | open  | open  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                SERIAL PORT 1 CONFIGURATION                 |
          |------------------------------------------------------------|
          |        COM         |        W20        |        W21        |
          |--------------------+-------------------+-------------------|
          | » |  COM1 (3F8h)   | pins 1 & 2 closed | pins 2 & 3 closed |
          |---+----------------+-------------------+-------------------|
          |   |  COM3 (3E8h)   | pins 2 & 3 closed | pins 1 & 2 closed |
          |---+----------------+-------------------+-------------------|
          |   | Not available  | pins 1 & 2 closed | pins 1 & 2 closed |
          |---+----------------+-------------------+-------------------|
          |   |    Disabled    | pins 2 & 3 closed | pins 2 & 3 closed |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                SERIAL PORT 2 CONFIGURATION                 |
          |------------------------------------------------------------|
          |        COM         |        W22        |        W23        |
          |--------------------+-------------------+-------------------|
          | » |  COM2 (2F8h)   | pins 1 & 2 closed | pins 2 & 3 closed |
          |---+----------------+-------------------+-------------------|
          |   |  COM4 (2E8h)   | pins 2 & 3 closed | pins 1 & 2 closed |
          |---+----------------+-------------------+-------------------|
          |   | Not available  | pins 1 & 2 closed | pins 1 & 2 closed |
          |---+----------------+-------------------+-------------------|
          |   |    Disabled    | pins 2 & 3 closed | pins 2 & 3 closed |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                PARALLEL PORT CONFIGURATION                 |
          |------------------------------------------------------------|
          |       LPT        |        W24         |        W25         |
          |------------------+--------------------+--------------------|
          | » | 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  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                PARALLEL PORT MODE SELECTION                |
          |------------------------------------------------------------|
          |       Mode       |        W29         |        W30         |
          |------------------+--------------------+--------------------|
          |     Printer      | pins 1 & 2 closed  | pins 1 & 2 closed  |
          |------------------+--------------------+--------------------|
          |     EPP/ECP      | pins 1 & 2 closed  | pins 2 & 3 closed  |
          |------------------+--------------------+--------------------|
          |     EPP/SPP      | pins 2 & 3 closed  | pins 1 & 2 closed  |
          |------------------+--------------------+--------------------|
          |     EXT2FDD      | pins 2 & 3 closed  | pins 2 & 3 closed  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             SERIAL PORT 1 INTERRUPT SELECTION              |
          |------------------------------------------------------------|
          |     IRQ       |     W35      |     W36      |     W37      |
          |---------------+--------------+--------------+--------------|
          | »  |    4     |    closed    |     open     |     open     |
          |----+----------+--------------+--------------+--------------|
          |    |    3     |     open     |    closed    |     open     |
          |----+----------+--------------+--------------+--------------|
          |    |    5     |     open     |     open     |    closed    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             SERIAL PORT 2 INTERRUPT SELECTION              |
          |------------------------------------------------------------|
          |     IRQ       |     W38      |     W39      |     W40      |
          |---------------+--------------+--------------+--------------|
          | »  |    3     |    closed    |     open     |     open     |
          |----+----------+--------------+--------------+--------------|
          |    |    4     |     open     |    closed    |     open     |
          |----+----------+--------------+--------------+--------------|
          |    |    5     |     open     |     open     |    closed    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             PARALLEL PORT INTERRUPT SELECTION              |
          |------------------------------------------------------------|
          |         IRQ          |       W41        |       W42        |
          |----------------------+------------------+------------------|
          | »    |       7       |      closed      |       open       |
          |------+---------------+------------------+------------------|
          |      |       5       |       open       |      closed      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                PRINTER OUTPUT CONFIGURATION                |
          |------------------------------------------------------------|
          |            Setting            |            W43             |
          |-------------------------------+----------------------------|
          |            Output             |           closed           |
          |-------------------------------+----------------------------|
          |        Bi-directional         |            open            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       DMA SELECTION                        |
          |------------------------------------------------------------|
          |   Channel    |        W31        |    W44     |    W45     |
          |--------------+-------------------+------------+------------|
          |      1       | pins 1 & 2 closed |   closed   |    open    |
          |--------------+-------------------+------------+------------|
          |      3       | pins 2 & 3 closed |    open    |   closed   |
          +------------------------------------------------------------+