GATEWAY COMMUNICATIONS, INC.
============================

   G/ETHERTWIST 8

   NIC Type         Ethernet                                      
   Transfer Rate    10Mbps                                        
   Data Bus         8-bit ISA                                     
   Topology         Linear bus                                    
                                                                  
                    Star                                          
   Wiring Type      Unshielded twisted pair                       
   Boot ROM         Available                                     

<gopher://bitreich.org/I/th99/n/E-H/40723-1.png>
   

   +------------------------------------------------------------+
   |                      BOOT ROM ADDRESS                      |
   |------------------------------------------------------------|
   |  PROM Address   |    SW1/4     |    SW1/5    |    SW1/6    |
   |-----------------+--------------+-------------+-------------|
   | C4000h - C7FFFh |      On      |     On      |     On      |
   |-----------------+--------------+-------------+-------------|
   | C8000h - CBFFFh |     Off      |     On      |     On      |
   |-----------------+--------------+-------------+-------------|
   | CC000h - CFFFFh |      On      |     Off     |     On      |
   |-----------------+--------------+-------------+-------------|
   | D0000h - D3000h |     Off      |     Off     |     On      |
   |-----------------+--------------+-------------+-------------|
   | D4000h - D7000h |      On      |     On      |     Off     |
   |-----------------+--------------+-------------+-------------|
   | D8000h - DBFFFh |     Off      |     On      |     Off     |
   |-----------------+--------------+-------------+-------------|
   | DC000h - DFFFFh |      On      |     Off     |     Off     |
   |-----------------+--------------+-------------+-------------|
   |    Disabled     |     Off      |     Off     |     Off     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |            Purpose            |          Location          |
   |-------------------------------+----------------------------|
   |    On-board link test LED     |      JP9, Pins 1 & 3       |
   |-------------------------------+----------------------------|
   |    Optional link test LED     |      JP9, Pins 3 & 4       |
   |-------------------------------+----------------------------|
   |          Receive LED          |      JP9, Pins 5 & 6       |
   |-------------------------------+----------------------------|
   |         Transmit LED          |      JP9, Pins 7 & 8       |
   |-------------------------------+----------------------------|
   |         Collision LED         |      JP9, Pins 9 & 10      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                      INTERRUPT SELECT                      |
   |------------------------------------------------------------|
   |  IRQ   | JP10/A | JP10/B | JP10/C | JP10/D |JP10/E |JP10/F |
   |--------+--------+--------+--------+--------+-------+-------|
   |>>| IRQ5 |  Open  |  Open  |  Open  | Closed | Open  | Open  |
   |-+------+--------+--------+--------+--------+-------+-------|
   | | IRQ2 | Closed |  Open  |  Open  |  Open  | Open  | Open  |
   |-+------+--------+--------+--------+--------+-------+-------|
   | | IRQ3 |  Open  | Closed |  Open  |  Open  | Open  | Open  |
   |-+------+--------+--------+--------+--------+-------+-------|
   | | IRQ4 |  Open  |  Open  | Closed |  Open  | Open  | Open  |
   |-+------+--------+--------+--------+--------+-------+-------|
   | | IRQ6 |  Open  |  Open  |  Open  |  Open  |Closed | Open  |
   |-+------+--------+--------+--------+--------+-------+-------|
   | | IRQ7 |  Open  |  Open  |  Open  |  Open  | Open  |Closed |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     I/O ADDRESS SELECT                     |
   |------------------------------------------------------------|
   |   Address Range   |    SW1/1    |    SW1/2    |   SW1/3    |
   |-------------------+-------------+-------------+------------|
   |>> |  2A0h - 2BFh  |     On      |     Off     |     On     |
   |---+---------------+-------------+-------------+------------|
   |   |  260h - 27Fh  |     On      |     On      |     On     |
   |---+---------------+-------------+-------------+------------|
   |   |  280h - 29Fh  |     Off     |     On      |     On     |
   |---+---------------+-------------+-------------+------------|
   |   |  2E0h - 2FFh  |     Off     |     Off     |     On     |
   |---+---------------+-------------+-------------+------------|
   |   |  300h - 31Fh  |     On      |     On      |    Off     |
   |---+---------------+-------------+-------------+------------|
   |   |  320h - 33Fh  |     Off     |     On      |    Off     |
   |---+---------------+-------------+-------------+------------|
   |   |  380h - 39Fh  |     On      |     Off     |    Off     |
   |---+---------------+-------------+-------------+------------|
   |   |  3E0h - 3FFh  |     Off     |     Off     |    Off     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                         WAIT STATE                         |
   |------------------------------------------------------------|
   |             Setting             |          SW1/7           |
   |---------------------------------+--------------------------|
   |>> |          Disabled           |           Off            |
   |---+-----------------------------+--------------------------|
   |   |           Enabled           |            On            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                FACTORY CONFIGURED SETTINGS                 |
   |------------------------------------------------------------|
   |            Switch            |           Setting           |
   |------------------------------+-----------------------------|
   |            SW1/8             |             N/A             |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                       DIAGNOSTIC LED                       |
   |------------------------------------------------------------|
   |    Color     |    Status    |          Condition           |
   |--------------+--------------+------------------------------|
   |    Green     |      On      |  Network connection is good  |
   |--------------+--------------+------------------------------|
   |    Green     |     Off      | Network connection is broken |
   +------------------------------------------------------------+