
STANDARD MICROSYSTEMS CORPORATION

ARCNET T100

NIC Type          ARCnet
Transfer Rate     2.5Mbps
Data Bus          Toshiba laptop internal expansion slot

                  (T5100, T3100, T3100e, T1600, T1200, and T1100Plus)
Topology          Star

                  Linear Bus
Wiring Type       RG-62A/U 93ohm coaxial
Boot ROM          Not available

[Image]

                               NODE ADDRESS

  Node   SW2/1    SW2/2   SW2/3   SW2/4    SW2/5   SW2/6    SW2/7   SW2/8

   0       -       -        -       -       -        -       -        -

   1      Off      On      On      On       On      On       On      On

   2      On      Off      On      On       On      On       On      On

   3      Off     Off      On      On       On      On       On      On

   4      On       On      Off     On       On      On       On      On

  251     Off     Off      On      Off     Off      Off     Off      Off

  252     On       On      Off     Off     Off      Off     Off      Off

  253     Off      On      Off     Off     Off      Off     Off      Off

  254     On      Off      Off     Off     Off      Off     Off      Off

  255     Off     Off      Off     Off     Off      Off     Off      Off

  Note: Node address 0 is used for messaging between nodes and must not
  be used.

       A total of 255 node address settings are available. The switches
       are a binary representation of the decimal node addresses. Switch
       1 is the Least Significant Bit and switch 8 is the Most
       Significant Bit. The switches have the following decimal values:
       switch 1=1, 2=2, 3=4, 4=8, 5=16, 6=32, 7=64, 8=128. Turn off the
       switches and add the values of the off switches to obtain the
       correct node address. (On=0, Off=1)

                            BASE MEMORY ADDRESS

  Base Address    SW1/1       SW1/2       SW1/3       SW1/4       SW1/5

    C0000h          On         On          On          On          On

    C0800h          On         On          On          On          Off

    C1000h          On         On          On          Off         On

    C1800h          On         On          On          Off         Off

    C4000h          On         On          Off         On          On

    C4800h          On         On          Off         On          Off

    C5000h          On         On          Off         Off         On

    C5800h          On         On          Off         Off         Off

    CC000h          On         Off         On          On          On

    CC800h          On         Off         On          On          Off

    CD000h          On         Off         On          Off         On

    CD800h          On         Off         On          Off         Off

    D0000h          On         Off         Off         On          On

    D0800h          On         Off         Off         On          Off

    D1000h          On         Off         Off         Off         On

    D1800h          On         Off         Off         Off         Off

    D4000h         Off         On          On          On          On

    D4800h         Off         On          On          On          Off

    D5000h         Off         On          On          Off         On

    D5800h         Off         On          On          Off         Off

    D8000h         Off         On          Off         On          On

    D8800h         Off         On          Off         On          Off

    D9000h         Off         On          Off         Off         On

    D9800h         Off         On          Off         Off         Off

    DC000h         Off         Off         On          On          On

    DC800h         Off         Off         On          On          Off

    DD000h         Off         Off         On          Off         On

    DD800h         Off         Off         On          Off         Off

    E0000h         Off         Off         Off         On          On

    E0800h         Off         Off         Off         On          Off

    E1000h         Off         Off         Off         Off         On

    E1800h         Off         Off         Off         Off         Off

                             I/O BASE ADDRESS

       Address              SW1/6             SW1/7            SW1/8

          300h               On                On              Off

           260h               On                On               On

           290h              Off                On               On

           2E0h               On               Off               On

           2F0h              Off               Off               On

           350h              Off                On              Off

           380h               On               Off              Off

           3E0h              Off               Off              Off

                               STANDBY MODE

                Mode                                 SW3

    Power is supplied to the card              On (position 1)

  Power is not supplied to the card            Off (position 0)

           INTERRUPT REQUEST

   IRQ      JP1A      JP1B      JP1C

    2      Closed     Open      Open

    3       Open     Closed     Open

    5       Open      Open     Closed

                  RESPONSE &AMP; RECONFIGURATION TIMEOUTS

  Response Time     Idle      Reconfig.      JP2A        JP2B      JP2C
                   Time         Time

       78s       86s         840ms       Closed      Closed     Open

       285s       316s       1680ms       Closed       Open      Open

       563s       624s       1680ms        Open       Closed     Open

       1190s     1237s       1680ms        Open        Open      Open

   TOPOLOGY CONFIGURATION

   Topology        JP3

     Star        Closed

  Linear Bus      Open

