MICRO EQUIPMENT CORPORATION
===========================

   UN-1085

   +------------------------------------------------------------+
   |------------------------------------------------------------|
   | 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                                 |
   +------------------------------------------------------------+

<gopher://bitreich.org/I/th99/c/M-O/20746-1.png>
   

   +------------------------------------------------------------+
   |                        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& 2 | closed  |
   |   | disabled                      |              |         |
   |---+-------------------------------+--------------+---------|
   |>> | 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 address is       |     W21      |  open   |
   |   | 3F0h-3F7h                     |              |         |
   |---+-------------------------------+--------------+---------|
   |   | Floppy drive address is       |     W21      | closed  |
   |   | 370h-377h                     |              |         |
   |---+-------------------------------+--------------+---------|
   |>> | Floppy controller enabled     |     W22      |  open   |
   |---+-------------------------------+--------------+---------|
   |   | Floppy controller disabled    |     W22      | closed  |
   |---+-------------------------------+--------------+---------|
   |>> | Parallel port output only     |     W23      | closed  |
   |   | select                        |              |         |
   |---+-------------------------------+--------------+---------|
   |   | Parallel port bi-directional  |     W23      |  open   |
   |   | select                        |              |         |
   |---+-------------------------------+--------------+---------|
   |>> | Game port enabled             |     W24      |  open   |
   |---+-------------------------------+--------------+---------|
   |   | Game port disabled            |     W24      | closed  |
   |---+-------------------------------+--------------+---------|
   |>> | Parallel port address is 378h |     W25      |  open   |
   |---+-------------------------------+--------------+---------|
   |   | Parallel port address is 278h |     W25      | closed  |
   |---+-------------------------------+--------------+---------|
   |>> | COMA address is 3F8h          |     W26      |  open   |
   |---+-------------------------------+--------------+---------|
   |   | COMA address is 3E8h          |     W26      | closed  |
   |---+-------------------------------+--------------+---------|
   |>> | COMA enabled                  |     W27      |  open   |
   |---+-------------------------------+--------------+---------|
   |   | COMA disabled                 |     W27      | closed  |
   |---+-------------------------------+--------------+---------|
   |>> | Parallel port enabled         |     W28      |  open   |
   |---+-------------------------------+--------------+---------|
   |   | Parallel port disabled        |     W28      | closed  |
   |---+-------------------------------+--------------+---------|
   |>> | COMB address is 2F8h          |     W29      |  open   |
   |---+-------------------------------+--------------+---------|
   |   | COMB address is 2E8h          |     W29      | closed  |
   |---+-------------------------------+--------------+---------|
   |>> | COMB enabled                  |     W30      |  open   |
   |---+-------------------------------+--------------+---------|
   |   | COMB disabled                 |     W30      | closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |         IDE (AT) TIMMING &AMP; MODE CONFIGURATION          |
   |------------------------------------------------------------|
   |  Timming  |  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 INTERRUPT SELECTION              |
   |------------------------------------------------------------|
   |     IRQ       |     W36      |     W37      |     W38      |
   |---------------+--------------+--------------+--------------|
   |>>  |    4     |    closed    |     open     |     open     |
   |----+----------+--------------+--------------+--------------|
   |    |    3     |     open     |    closed    |     open     |
   |----+----------+--------------+--------------+--------------|
   |    |    5     |     open     |     open     |    closed    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             SERIAL PORT 2 INTERRUPT SELECTION              |
   |------------------------------------------------------------|
   |     IRQ       |     W39      |     W40      |     W41      |
   |---------------+--------------+--------------+--------------|
   |>>  |    3     |    closed    |     open     |     open     |
   |----+----------+--------------+--------------+--------------|
   |    |    4     |     open     |    closed    |     open     |
   |----+----------+--------------+--------------+--------------|
   |    |    5     |     open     |     open     |    closed    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             PARALLEL PORT INTERRUPT SELECTION              |
   |------------------------------------------------------------|
   |         IRQ          |       W42        |       W43        |
   |----------------------+------------------+------------------|
   |>>    |       7       |      closed      |       open       |
   |------+---------------+------------------+------------------|
   |      |       5       |       open       |      closed      |
   +------------------------------------------------------------+