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

[Image]

                             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