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       # TIARA COMPUTER SYSTEMS, INC.
       
          LanCard E
       
          NIC Type         Ethernet                                      
          Transfer Rate    10Mbps                                        
          Data Bus         8-bit ISA                                     
          Topology         Linear Bus                                    
          Wiring Type      RG-58A/U 50ohm coaxial                        
                                                                         
                           AUI transceiver via DB-15 port                
          Boot ROM         Available                                     
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                     INTERRUPT REQUEST                      |
          |------------------------------------------------------------|
          |   IRQ   |   JP1    |   JP2   |   JP3   |   JP4   |   JP5   |
          |---------+----------+---------+---------+---------+---------|
          | » |  3  |   Open   | Closed  |  Open   |  Open   |  Open   |
          |---+-----+----------+---------+---------+---------+---------|
          |   |  2  |  Closed  |  Open   |  Open   |  Open   |  Open   |
          |---+-----+----------+---------+---------+---------+---------|
          |   |  4  |   Open   |  Open   | Closed  |  Open   |  Open   |
          |---+-----+----------+---------+---------+---------+---------|
          |   |  5  |   Open   |  Open   |  Open   | Closed  |  Open   |
          |---+-----+----------+---------+---------+---------+---------|
          |   |  7  |   Open   |  Open   |  Open   |  Open   | Closed  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        DMA CHANNEL                         |
          |------------------------------------------------------------|
          |  Channel  |  JP6   |  JP7  |  JP8  |  JP9  | JP10  | JP11  |
          |-----------+--------+-------+-------+-------+-------+-------|
          |»|Disabled |  Open  | Open  |Closed | Open  | Open  |Closed |
          |-+---------+--------+-------+-------+-------+-------+-------|
          | |  DMA1   | Closed | Open  | Open  |Closed | Open  | Open  |
          |-+---------+--------+-------+-------+-------+-------+-------|
          | |  DMA3   |  Open  |Closed | Open  | Open  |Closed | Open  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         CABLE TYPE                         |
          |------------------------------------------------------------|
          |              Type              |        JP12 - JP19        |
          |--------------------------------+---------------------------|
          |     RG-58A/U 50ohm coaxial     |     Pins 1 & 2 closed     |
          |--------------------------------+---------------------------|
          | AUI transceiver via DB-15 port |     Pins 2 & 3 closed     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      I/O BASE ADDRESS                      |
          |------------------------------------------------------------|
          |    I/O    |    JP20    |  JP21  |  JP22  |  JP23  |  JP24  |
          |  Address  |            |        |        |        |        |
          |-----------+------------+--------+--------+--------+--------|
          | »  | 300h | Pins 1 & 2 | Pins 1 | Pins 1 | Pins 2 | Pins 2 |
          |    |      |            |  & 2   |  & 2   |  & 3   |  & 3   |
          |----+------+------------+--------+--------+--------+--------|
          |    | 000h | Pins 1 & 2 | Pins 1 | Pins 1 | Pins 1 | Pins 1 |
          |    |      |            |  & 2   |  & 2   |  & 2   |  & 2   |
          |----+------+------------+--------+--------+--------+--------|
          |    | 020h | Pins 2 & 3 | Pins 1 | Pins 1 | Pins 1 | Pins 1 |
          |    |      |            |  & 2   |  & 2   |  & 2   |  & 2   |
          |----+------+------------+--------+--------+--------+--------|
          |    | 040h | Pins 1 & 2 | Pins 2 | Pins 1 | Pins 1 | Pins 1 |
          |    |      |            |  & 3   |  & 2   |  & 2   |  & 2   |
          |----+------+------------+--------+--------+--------+--------|
          |    | 060h | Pins 2 & 3 | Pins 2 | Pins 1 | Pins 1 | Pins 1 |
          |    |      |            |  & 3   |  & 2   |  & 2   |  & 2   |
          |----+------+------------+--------+--------+--------+--------|
          |    | 080h | Pins 1 & 2 | Pins 1 | Pins 2 | Pins 1 | Pins 1 |
          |    |      |            |  & 2   |  & 3   |  & 2   |  & 2   |
          |----+------+------------+--------+--------+--------+--------|
          |    | 0A0h | Pins 2 & 3 | Pins 1 | Pins 2 | Pins 1 | Pins 1 |
          |    |      |            |  & 2   |  & 3   |  & 2   |  & 2   |
          |----+------+------------+--------+--------+--------+--------|
          |    | 0C0h | Pins 1 & 2 | Pins 2 | Pins 2 | Pins 1 | Pins 1 |
          |    |      |            |  & 3   |  & 3   |  & 2   |  & 2   |
          |----+------+------------+--------+--------+--------+--------|
          |    | 0E0h | Pins 2 & 3 | Pins 2 | Pins 2 | Pins 1 | Pins 1 |
          |    |      |            |  & 3   |  & 3   |  & 2   |  & 2   |
          |----+------+------------+--------+--------+--------+--------|
          |    | 100h | Pins 1 & 2 | Pins 1 | Pins 1 | Pins 2 | Pins 1 |
          |    |      |            |  & 2   |  & 2   |  & 3   |  & 2   |
          |----+------+------------+--------+--------+--------+--------|
          |    | 120h | Pins 2 & 3 | Pins 1 | Pins 1 | Pins 2 | Pins 1 |
          |    |      |            |  & 2   |  & 2   |  & 3   |  & 2   |
          |----+------+------------+--------+--------+--------+--------|
          |    | 140h | Pins 1 & 2 | Pins 2 | Pins 1 | Pins 2 | Pins 1 |
          |    |      |            |  & 3   |  & 2   |  & 3   |  & 2   |
          |----+------+------------+--------+--------+--------+--------|
          |    | 160h | Pins 2 & 3 | Pins 2 | Pins 1 | Pins 2 | Pins 1 |
          |    |      |            |  & 3   |  & 2   |  & 3   |  & 2   |
          |----+------+------------+--------+--------+--------+--------|
          |    | 180h | Pins 1 & 2 | Pins 1 | Pins 2 | Pins 2 | Pins 1 |
          |    |      |            |  & 2   |  & 3   |  & 3   |  & 2   |
          |----+------+------------+--------+--------+--------+--------|
          |    | 1A0h | Pins 2 & 3 | Pins 1 | Pins 2 | Pins 2 | Pins 1 |
          |    |      |            |  & 2   |  & 3   |  & 3   |  & 2   |
          |----+------+------------+--------+--------+--------+--------|
          |    | 1C0h | Pins 1 & 2 | Pins 2 | Pins 2 | Pins 2 | Pins 1 |
          |    |      |            |  & 3   |  & 3   |  & 3   |  & 2   |
          |----+------+------------+--------+--------+--------+--------|
          |    | 1E0h | Pins 2 & 3 | Pins 2 | Pins 2 | Pins 2 | Pins 1 |
          |    |      |            |  & 3   |  & 3   |  & 3   |  & 2   |
          |----+------+------------+--------+--------+--------+--------|
          |    | 200h | Pins 1 & 2 | Pins 1 | Pins 1 | Pins 1 | Pins 2 |
          |    |      |            |  & 2   |  & 2   |  & 2   |  & 3   |
          |----+------+------------+--------+--------+--------+--------|
          |    | 220h | Pins 2 & 3 | Pins 1 | Pins 1 | Pins 1 | Pins 2 |
          |    |      |            |  & 2   |  & 2   |  & 2   |  & 3   |
          |----+------+------------+--------+--------+--------+--------|
          |    | 240h | Pins 1 & 2 | Pins 2 | Pins 1 | Pins 1 | Pins 2 |
          |    |      |            |  & 3   |  & 2   |  & 2   |  & 3   |
          |----+------+------------+--------+--------+--------+--------|
          |    | 260h | Pins 2 & 3 | Pins 2 | Pins 1 | Pins 1 | Pins 2 |
          |    |      |            |  & 3   |  & 2   |  & 2   |  & 3   |
          |----+------+------------+--------+--------+--------+--------|
          |    | 280h | Pins 1 & 2 | Pins 1 | Pins 2 | Pins 1 | Pins 2 |
          |    |      |            |  & 2   |  & 3   |  & 2   |  & 3   |
          |----+------+------------+--------+--------+--------+--------|
          |    | 2A0h | Pins 2 & 3 | Pins 1 | Pins 2 | Pins 1 | Pins 2 |
          |    |      |            |  & 2   |  & 3   |  & 2   |  & 3   |
          |----+------+------------+--------+--------+--------+--------|
          |    | 2C0h | Pins 1 & 2 | Pins 2 | Pins 2 | Pins 1 | Pins 2 |
          |    |      |            |  & 3   |  & 3   |  & 2   |  & 3   |
          |----+------+------------+--------+--------+--------+--------|
          |    | 2E0h | Pins 2 & 3 | Pins 2 | Pins 2 | Pins 1 | Pins 2 |
          |    |      |            |  & 3   |  & 3   |  & 2   |  & 3   |
          |----+------+------------+--------+--------+--------+--------|
          |    | 320h | Pins 2 & 3 | Pins 1 | Pins 1 | Pins 2 | Pins 2 |
          |    |      |            |  & 2   |  & 2   |  & 3   |  & 3   |
          |----+------+------------+--------+--------+--------+--------|
          |    | 340h | Pins 1 & 2 | Pins 2 | Pins 1 | Pins 2 | Pins 2 |
          |    |      |            |  & 3   |  & 2   |  & 3   |  & 3   |
          |----+------+------------+--------+--------+--------+--------|
          |    | 360h | Pins 2 & 3 | Pins 2 | Pins 1 | Pins 2 | Pins 2 |
          |    |      |            |  & 3   |  & 2   |  & 3   |  & 3   |
          |----+------+------------+--------+--------+--------+--------|
          |    | 380h | Pins 1 & 2 | Pins 1 | Pins 2 | Pins 2 | Pins 2 |
          |    |      |            |  & 2   |  & 3   |  & 3   |  & 3   |
          |----+------+------------+--------+--------+--------+--------|
          |    | 3A0h | Pins 2 & 3 | Pins 1 | Pins 2 | Pins 2 | Pins 2 |
          |    |      |            |  & 2   |  & 3   |  & 3   |  & 3   |
          |----+------+------------+--------+--------+--------+--------|
          |    | 3C0h | Pins 1 & 2 | Pins 2 | Pins 2 | Pins 2 | Pins 2 |
          |    |      |            |  & 3   |  & 3   |  & 3   |  & 3   |
          |----+------+------------+--------+--------+--------+--------|
          |    | 3E0h | Pins 2 & 3 | Pins 2 | Pins 2 | Pins 2 | Pins 2 |
          |    |      |            |  & 3   |  & 3   |  & 3   |  & 3   |
          |------------------------------------------------------------|
          | Note:Pins designated should be in the closed position.     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             BASE MEMORY ADDRESS - FIRST DIGIT              |
          |------------------------------------------------------------|
          |  Address  |    JP25    |   JP26    |   JP27    |   JP28    |
          |  Segment  |            |           |           |           |
          |-----------+------------+-----------+-----------+-----------|
          |    0h     | Pins 2 & 3 | Pins 2 &  | Pins 2 &  | Pins 2 &  |
          |           |   closed   | 3 closed  | 3 closed  | 3 closed  |
          |-----------+------------+-----------+-----------+-----------|
          |    1h     | Pins 2 & 3 | Pins 2 &  | Pins 2 &  | Pins 1 &  |
          |           |   closed   | 3 closed  | 3 closed  | 2 closed  |
          |-----------+------------+-----------+-----------+-----------|
          |    2h     | Pins 2 & 3 | Pins 2 &  | Pins 1 &  | Pins 2 &  |
          |           |   closed   | 3 closed  | 2 closed  | 3 closed  |
          |-----------+------------+-----------+-----------+-----------|
          |    3h     | Pins 2 & 3 | Pins 2 &  | Pins 1 &  | Pins 1 &  |
          |           |   closed   | 3 closed  | 2 closed  | 2 closed  |
          |-----------+------------+-----------+-----------+-----------|
          |    4h     | Pins 2 & 3 | Pins 1 &  | Pins 2 &  | Pins 2 &  |
          |           |   closed   | 2 closed  | 3 closed  | 3 closed  |
          |-----------+------------+-----------+-----------+-----------|
          |    5h     | Pins 2 & 3 | Pins 1 &  | Pins 2 &  | Pins 1 &  |
          |           |   closed   | 2 closed  | 3 closed  | 2 closed  |
          |-----------+------------+-----------+-----------+-----------|
          |    6h     | Pins 2 & 3 | Pins 1 &  | Pins 1 &  | Pins 2 &  |
          |           |   closed   | 2 closed  | 2 closed  | 3 closed  |
          |-----------+------------+-----------+-----------+-----------|
          |    7h     | Pins 2 & 3 | Pins 1 &  | Pins 1 &  | Pins 1 &  |
          |           |   closed   | 2 closed  | 2 closed  | 2 closed  |
          |-----------+------------+-----------+-----------+-----------|
          |    8h     | Pins 1 & 2 | Pins 2 &  | Pins 2 &  | Pins 2 &  |
          |           |   closed   | 3 closed  | 3 closed  | 3 closed  |
          |-----------+------------+-----------+-----------+-----------|
          |    9h     | Pins 1 & 2 | Pins 2 &  | Pins 2 &  | Pins 1 &  |
          |           |   closed   | 3 closed  | 3 closed  | 2 closed  |
          |-----------+------------+-----------+-----------+-----------|
          |    Ah     | Pins 1 & 2 | Pins 2 &  | Pins 1 &  | Pins 2 &  |
          |           |   closed   | 3 closed  | 2 closed  | 3 closed  |
          |-----------+------------+-----------+-----------+-----------|
          |    Bh     | Pins 1 & 2 | Pins 2 &  | Pins 1 &  | Pins 1 &  |
          |           |   closed   | 3 closed  | 2 closed  | 2 closed  |
          |-----------+------------+-----------+-----------+-----------|
          |    Ch     | Pins 1 & 2 | Pins 1 &  | Pins 2 &  | Pins 2 &  |
          |           |   closed   | 2 closed  | 3 closed  | 3 closed  |
          |-----------+------------+-----------+-----------+-----------|
          |    Dh     | Pins 1 & 2 | Pins 1 &  | Pins 2 &  | Pins 1 &  |
          |           |   closed   | 2 closed  | 3 closed  | 2 closed  |
          |-----------+------------+-----------+-----------+-----------|
          |    Eh     | Pins 1 & 2 | Pins 1 &  | Pins 1 &  | Pins 2 &  |
          |           |   closed   | 2 closed  | 2 closed  | 3 closed  |
          |-----------+------------+-----------+-----------+-----------|
          |    Fh     | Pins 1 & 2 | Pins 1 &  | Pins 1 &  | Pins 1 &  |
          |           |   closed   | 2 closed  | 2 closed  | 2 closed  |
          |------------------------------------------------------------|
          | Note:The Address Segment is the first digit in the Base    |
          | Memory Address. Refer to the next table for the remaining  |
          | three digits in the address.                               |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |          BASE MEMORY ADDRESS - LAST THREE DIGITS           |
          |------------------------------------------------------------|
          |   Address   |          JP29          |        JP30         |
          |-------------+------------------------+---------------------|
          |  000-3FFh   |   Pins 2 & 3 closed    |  Pins 2 & 3 closed  |
          |-------------+------------------------+---------------------|
          |  400-7FFh   |   Pins 2 & 3 closed    |  Pins 1 & 2 closed  |
          |-------------+------------------------+---------------------|
          |  800-BFEh   |   Pins 1 & 2 closed    |  Pins 2 & 3 closed  |
          |-------------+------------------------+---------------------|
          |  C00-FFEh   |   Pins 1 & 2 closed    |  Pins 1 & 2 closed  |
          |------------------------------------------------------------|
          | Note:Place the three digit address given here behind the   |
          | single digit given in the previous table to get the full   |
          | Base Memory Address.                                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                          BOOT ROM                          |
          |------------------------------------------------------------|
          |          Setting           |             JP31              |
          |----------------------------+-------------------------------|
          | » |        Disabled        |       Pins 2 & 3 closed       |
          |---+------------------------+-------------------------------|
          |   |        Enabled         |             Open              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |         FACTORY CONFIGURED SETTINGS - DO NOT ALTER         |
          |------------------------------------------------------------|
          |           Jumper            |           Setting            |
          |-----------------------------+------------------------------|
          |            JP32             |             Open             |
          |-----------------------------+------------------------------|
          |            JP33             |             Open             |
          |-----------------------------+------------------------------|
          |            JP34             |             Open             |
          +------------------------------------------------------------+