AT-LAN-TEC, INC.
================

   ETHERNET E2100

   NIC Type         Ethernet                                      
   Transfer Rate    10Mbps                                        
   Data Bus         16-bit ISA                                    
   Topology         Linear Bus                                    
   Wiring Type      RG-58 A/U 50ohm Coaxial Cable                 
                                                                  
                    AUI Transceiver via DB-15 port                
   Boot ROM         Available                                     

<gopher://bitreich.org/I/th99/n/A-B/40788-1.png>
   

   +------------------------------------------------------------+
   |                     BUS COMPATIBILITY                      |
   |------------------------------------------------------------|
   |                      Setting                      | JP4/A  |
   |---------------------------------------------------+--------|
   |   Systems that are completely timing-compatible   |  Open  |
   |                with the IBM PC/AT                 |        |
   |---------------------------------------------------+--------|
   |          Systems that are not completely          | Closed |
   |       timing--compatible with the IBM PC/AT       |        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   MEMORY ADDRESS SELECT                    |
   |------------------------------------------------------------|
   |  ROM Address   | Base I/O Address |   JP4/B    |   JP4/C   |
   |----------------+------------------+------------+-----------|
   | C0800 - C0FFFh |       300h       |   Closed   |  Closed   |
   |----------------+------------------+------------+-----------|
   | CC000 - CC7FFh |       320h       |   Closed   |   Open    |
   |----------------+------------------+------------+-----------|
   | D0000 - D07FFh |       340h       |    Open    |  Closed   |
   |----------------+------------------+------------+-----------|
   | D4000 - D47FFh |       360h       |    Open    |   Open    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                          BOOT ROM                          |
   |------------------------------------------------------------|
   |              Setting              |         JP4/D          |
   |-----------------------------------+------------------------|
   |>> |   Disable remote boot: ROM    |          Open          |
   |---+-------------------------------+------------------------|
   |   |    Enable remote boot: ROM    |         Closed         |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                         CABLE TYPE                         |
   |------------------------------------------------------------|
   |           Purpose            |           Setting           |
   |------------------------------+-----------------------------|
   |  BNC Port for thin cabling   |  JP3/A-H Pins 1 & 2 Closed  |
   |------------------------------+-----------------------------|
   |  AUI port for thick cabling  |  JP3/A-H pins 2 & 3 Closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                      INTERRUPT SELECT                      |
   |------------------------------------------------------------|
   |    IRQ     |   J2/A    |   J2/B    |   J2/C    |   J2/D    |
   |------------+-----------+-----------+-----------+-----------|
   |>> |  IRQ3  |  Closed   |   Open    |   Open    |   Open    |
   |---+--------+-----------+-----------+-----------+-----------|
   |   |  IRQ4  |   Open    |  Closed   |   Open    |   Open    |
   |---+--------+-----------+-----------+-----------+-----------|
   |   |  IRQ5  |   Open    |   Open    |  Closed   |   Open    |
   |---+--------+-----------+-----------+-----------+-----------|
   |   |  IRQ9  |   Open    |   Open    |   Open    |  Closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                      DMA ACKNOWLEDGE                       |
   |------------------------------------------------------------|
   |    Purpose     |  JP1/A   |  JP1/B   |  JP1/C   |  JP1/D   |
   |----------------+----------+----------+----------+----------|
   |>> |   DACK5    |   Open   |   Open   |  Closed  |   Open   |
   |---+------------+----------+----------+----------+----------|
   |   |   DACK7    |  Closed  |   Open   |   Open   |   Open   |
   |---+------------+----------+----------+----------+----------|
   |   |   DACK6    |   Open   |  Closed  |   Open   |   Open   |
   |---+------------+----------+----------+----------+----------|
   |   |   DACK3    |   Open   |   Open   |   Open   |  Closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                        DMA REQUEST                         |
   |------------------------------------------------------------|
   |    Purpose     |  JP1/E   |  JP1/F   |  JP1/G   |  JP1/H   |
   |----------------+----------+----------+----------+----------|
   |>> |    DRQ5    |   Open   |   Open   |  Closed  |   Open   |
   |---+------------+----------+----------+----------+----------|
   |   |    DRQ7    |  Closed  |   Open   |   Open   |   Open   |
   |---+------------+----------+----------+----------+----------|
   |   |    DRQ6    |   Open   |  Closed  |   Open   |   Open   |
   |---+------------+----------+----------+----------+----------|
   |   |    DRQ3    |   Open   |   Open   |   Open   |  Closed  |
   +------------------------------------------------------------+