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       # MICRO EQUIPMENT CORPORATION
       
          UN-1688
       
          Card Type       Multi-I/O card                                 
          Chip Set        Ess1668                                        
          Maximum Onboard None                                           
          Memory          
          I/O Options     Game/MIDI port, speaker, line out, line in,    
                          microphone in, second IDE, speaker in, wave    
                          table connector, Panasonic CD-ROM connector,   
                          Mitsumi CD-ROM connector, Sony CD-ROM          
                          connector                                      
          Data Bus        16-bit ISA                                     
          Floppy drives   None                                           
          supported       
       
   IMG IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |    Function    | Label |         Function          | Label |
          |----------------+-------+---------------------------+-------|
          | Game/MIDI port |  CN1  | Speaker in                |  CN7  |
          |----------------+-------+---------------------------+-------|
          | Speaker        |  CN2  | Wave table connector      |  CN8  |
          |----------------+-------+---------------------------+-------|
          | Line out       |  CN3  | Panasonic CD-ROM          |  CN9  |
          |                |       | connector                 |       |
          |----------------+-------+---------------------------+-------|
          | Line in        |  CN4  | Mitsumi CD-ROM connector  | CN10  |
          |----------------+-------+---------------------------+-------|
          | Microphone in  |  CN5  | Sony CD-ROM connector     | CN11  |
          |----------------+-------+---------------------------+-------|
          | Secondary IDE  |  CN6  |                           |       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |                Function                | Label | Position  |
          |----------------------------------------+-------+-----------|
          | » | Joystick enabled                   |  JP4  |  Closed   |
          |---+------------------------------------+-------+-----------|
          |   | Joystick disabled                  |  JP4  |   Open    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   DMA CHANNEL SELECTION                    |
          |------------------------------------------------------------|
          |     Channel      |   JP1/pins 1 & 2   |   JP1/pins 3 & 4   |
          |------------------+--------------------+--------------------|
          |   |     None     |        Open        |        Open        |
          |---+--------------+--------------------+--------------------|
          |   |      0       |        Open        |       Closed       |
          |---+--------------+--------------------+--------------------|
          | » |      1       |       Closed       |        Open        |
          |---+--------------+--------------------+--------------------|
          |   |      3       |       Closed       |       Closed       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       IDE SELECTION                        |
          |------------------------------------------------------------|
          |       Setting        |      JP5       |        JP6         |
          |----------------------+----------------+--------------------|
          | » |     Disabled     |      Open      | Pins 2 & 3 closed  |
          |---+------------------+----------------+--------------------|
          |   |     Enabled      |     Closed     | Pins 1 & 2 closed  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 BASE I/O ADDRESS SELECTION                 |
          |------------------------------------------------------------|
          |     Setting      |   JP2/pins 1 & 2   |   JP2/pins 2 & 3   |
          |------------------+--------------------+--------------------|
          | » |     220h     |        Open        |        Open        |
          |---+--------------+--------------------+--------------------|
          |   |     230h     |        Open        |       Closed       |
          |---+--------------+--------------------+--------------------|
          |   |     240h     |       Closed       |        Open        |
          |---+--------------+--------------------+--------------------|
          |   |     250h     |       Closed       |       Closed       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    INTERRUPT SELECTION                     |
          |------------------------------------------------------------|
          |       IRQ        |   JP3/pins 1 & 2   |   JP3/pins 3 & 4   |
          |------------------+--------------------+--------------------|
          |   |     IRQ9     |        Open        |        Open        |
          |---+--------------+--------------------+--------------------|
          |   |     IRQ5     |        Open        |       Closed       |
          |---+--------------+--------------------+--------------------|
          |   |     IRQ7     |       Closed       |        Open        |
          |---+--------------+--------------------+--------------------|
          | » |    IRQ10     |       Closed       |       Closed       |
          +------------------------------------------------------------+