
GVC TECHNOLOGIES, INC.

NIC-2004

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

              RG58A/U 50ohm coaxial

              AUI transceiver via DB-15 port
Boot ROM      Available

[Image]

                     BASE MEMORY ADDRESS CONFIGURATION

    Address         Shared         JP1       JP2        JP3        JP4
                 Memory Size

       N/A      No Boot PROM     Open       Open       Open       Open

       0C000h      8KB/16KB       Open       Open      Closed      Open

       0C400h      8KB/16KB       Open       Open      Closed     Closed

       0C800h      8KB/16KB       Open      Closed      Open       Open

       0CC00h      8KB/16KB       Open      Closed      Open      Closed

       0D000h      8KB/16KB       Open      Closed     Closed      Open

       0D400h      8KB/16KB       Open      Closed     Closed     Closed

       0D800h      8KB/16KB      Closed      Open      Op-en       Open

       0DC00h      8KB/16KB      Closed      Open       Open      Closed

       0C000h     32KB/32KB      Closed      Open      Closed      Open

       0C800h     32KB/32KB      Closed      Open      Closed     Closed

       0D000h     32KB/32KB      Closed     Closed      Open       Open

       0D800h     32KB/32KB      Closed     Closed      Open      Closed

       0C000h     64KB/64KB      Closed     Closed     Closed      Open

       0D000h     64KB/64KB      Closed     Closed     Closed     Closed

                                CABLE TYPE

              Type                       JP5                  JP6

       RG58A/U 50ohm coaxial           Open                 Closed

         AUI transceiver via           Closed                 Open
             DB-15 port

        TPI (Reduced Squelch)          Closed                Closed

       Unshielded twisted pair          Open                  Open

                        CHANNEL READY CONFIGURATION

                 Setting                                JP12

        Channel Ready generated after                  Open
                command strobe

      Channel ready generated after BALE               Closed
                  goes high

                                 EECONFIG

                   Setting                                JP18

             Software Configuration                     Closed

         Hardware(jumpers) Configuration                  Open

                             INTERRUPT SELECT

        IRQ             JP7           JP8          JP9           JP10

        IRQ3         Closed         Open          Open          Open

         IRQ4         Closed         Open          Open         Closed

         IRQ5         Closed         Open         Closed         Open

         IRQ9         Closed         Open         Closed        Closed

         IRQ10        Closed        Closed         Open          Open

         IRQ11        Closed        Closed         Open         Closed

         IRQ12        Closed        Closed        Closed         Open

         IRQ15        Closed        Closed        Closed        Closed

                      I/O BASE ADDRESS CONFIGURATION

        Address              JP15             JP16             JP17

          300h              Open             Open             Open

         Software            Open             Open            Closed

           240h              Open            Closed            Open

           280h              Open            Closed           Closed

           2C0h             Closed            Open             Open

           320h             Closed            Open            Closed

           340h             Closed           Closed            Open

           360h             Closed           Closed           Closed

                           IO16CON CONFIGURATION

                 Setting                                JP13

       IO16 generated only on address                  Open
                    decode

       IO16 generated after IORD or IOWR               Closed
                  go active

                          LINK-TEST CONFIGURATION

                 Setting                                JP11

             Link Test enabled                         Open

              Link Test disabled                       Closed

                       MEMORY/IO MODE CONFIGURATION

                Setting                                JP14

                 I/O Mode                             Open

             Shared Memory Mode                       Closed

