GIGA-BYTE TECHNOLOGY, INC.
==========================

   GA-500

   NIC Type:           Ethernet                                   
   Transfer Rate:      10Mbps                                     
   Data Bus:           32-bit VESA local bus                      
   Topology:           Linear Bus                                 
                                                                  
                       Star                                       
   Wiring Type         Unshielded twisted pair                    
                                                                  
                       RG58A/U 50ohm coaxial                      
                                                                  
                       AUI transceiver via DB-15 port             
   Boot ROM            Available                                  

<gopher://bitreich.org/I/th99/n/E-H/40793-1.png>
   

   +------------------------------------------------------------+
   |                        I/O ADDRESS                         |
   |------------------------------------------------------------|
   |  Address   |    J1     |    J2     |    JP3    |    JP5    |
   |------------+-----------+-----------+-----------+-----------|
   |    300h    |    off    |    off    |    on     |    on     |
   |------------+-----------+-----------+-----------+-----------|
   |    320h    |    on     |    off    |    on     |    off    |
   |------------+-----------+-----------+-----------+-----------|
   |    340h    |    off    |    on     |    off    |    on     |
   |------------+-----------+-----------+-----------+-----------|
   |    360h    |    on     |    on     |    off    |    off    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                      BOOT ROM ADDRESS                      |
   |------------------------------------------------------------|
   |  Address   |      J3       |      J4       |      J5       |
   |------------+---------------+---------------+---------------|
   |   C8000h   |      off      |      off      |      off      |
   |------------+---------------+---------------+---------------|
   |   CC000h   |      on       |      off      |      off      |
   |------------+---------------+---------------+---------------|
   |   D0000h   |      off      |      on       |      off      |
   |------------+---------------+---------------+---------------|
   |   D4000h   |      on       |      on       |      off      |
   |------------+---------------+---------------+---------------|
   |   D8000h   |      off      |      off      |      on       |
   |------------+---------------+---------------+---------------|
   |   DC000h   |      on       |      off      |      on       |
   |------------+---------------+---------------+---------------|
   |   C4000h   |      off      |      on       |      on       |
   |------------+---------------+---------------+---------------|
   |   E0000h   |      on       |      on       |      on       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   INTERRUPT SELECT - JP6                   |
   |------------------------------------------------------------|
   |  IRQ  |  A   |  B   |  C   |  D   |  E   |  F  |  G  |  H  |
   |-------+------+------+------+------+------+-----+-----+-----|
   | IRQ2  |  on  | off  | off  | off  | off  | off | off | off |
   |-------+------+------+------+------+------+-----+-----+-----|
   | IRQ3  | off  |  on  | off  | off  | off  | off | off | off |
   |-------+------+------+------+------+------+-----+-----+-----|
   | IRQ4  | off  | off  |  on  | off  | off  | off | off | off |
   |-------+------+------+------+------+------+-----+-----+-----|
   | IRQ5  | off  | off  | off  |  on  | off  | off | off | off |
   |-------+------+------+------+------+------+-----+-----+-----|
   | IRQ10 | off  | off  | off  | off  |  on  | off | off | off |
   |-------+------+------+------+------+------+-----+-----+-----|
   | IRQ11 | off  | off  | off  | off  | off  | on  | off | off |
   |-------+------+------+------+------+------+-----+-----+-----|
   | IRQ12 | off  | off  | off  | off  | off  | off | on  | off |
   |-------+------+------+------+------+------+-----+-----+-----|
   | IRQ15 | off  | off  | off  | off  | off  | off | off | on  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                          BOOT ROM                          |
   |------------------------------------------------------------|
   |            Setting            |            JP4             |
   |-------------------------------+----------------------------|
   |            Enabled            |           closed           |
   |-------------------------------+----------------------------|
   |           Disabled            |            open            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                      DIAGNOSTIC LEDS                       |
   |------------------------------------------------------------|
   | LED  |  Color  |  Status  |           Condition            |
   |------+---------+----------+--------------------------------|
   |  D1  | unknown |    on    | Network connected successfully |
   |------+---------+----------+--------------------------------|
   |  D1  | unknown |   off    |    Network is not connected    |
   |------+---------+----------+--------------------------------|
   |  D2  | unknown | blinking |       Collision detected       |
   |------+---------+----------+--------------------------------|
   |  D3  | unknown | blinking |     Data is being received     |
   |------+---------+----------+--------------------------------|
   |  D4  | unknown | blinking |   Data is being transmitted    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               MISCELLANEOUS TECHNICAL NOTES                |
   |------------------------------------------------------------|
   |  Do not alter jumper J6, it is factory configured in the   |
   |                      closed position.                      |
   +------------------------------------------------------------+