
ROCKWELL NETWORK SYSTEMS

CMC-640

NIC Type      Ethernet
Transfer Rate 10Mbps
Data Bus      16-bit ISA
Topology      Linear Bus/Star
Wiring Type   AUI Transceiver via DB-15 port

              RG-58A/U 50ohm coaxial
Boot ROM      Not available

[Image]

  FACTORY CONFIGURED - DO NOT ALTER

   Jumper/Switch        Position

       JP11              Closed

              DRAM CONFIGURATION

      Size          Bank 0          Bank 1

     128KB        (4) 64K x 4        Open

     256KB        (4) 64K x 4    (4) 64K x 4

     512KB        (4) 256K x 4       Open

      1MB         (4) 256K x 4   (4) 256K x 4

  DRAM JUMPER CONFIGURATION

     Size            JP1

     128KB          Open

     512MB         Closed

                                    BASE I/O ADDRESS SELECTION

  Address   JP5/A   JP5/B    JP5/C    JP5/D    JP5/E    JP5/F    JP5/G    JP5/H    JP5/I   JP5/J

  004000h   Closed  Closed   Closed   Closed   Closed   Closed   Closed   Closed   Closed   Open

  008000h   Closed  Closed   Closed   Closed   Closed   Closed   Closed   Closed   Open    Closed

  00C000h   Closed  Closed   Closed   Closed   Closed   Closed   Closed   Closed   Open     Open

  010000h   Closed  Closed   Closed   Closed   Closed   Closed   Closed   Open     Closed  Closed

  014000h   Closed  Closed   Closed   Closed   Closed   Closed   Closed   Open     Closed   Open

  FEC000h   Open     Open     Open     Open     Open    Open     Open     Closed   Open     Open

  FF1000h   Open     Open     Open     Open     Open    Open     Open     Open     Closed  Closed

  FF5000h   Open     Open     Open     Open     Open    Open     Open     Open     Closed   Open

  FF9000h   Open     Open     Open     Open     Open    Open     Open     Open     Open    Closed

  FFC000h   Open     Open     Open     Open     Open    Open     Open     Open     Open     Open

       Note: A total of 1023 base I/O address settings are available. The jumpers are a binary
       representation of the hexadecimal base I/O addresses. Jumper JP5/J is the Least
       Significant Bit and jumper JP5/A is the Most Significant Bit. The jumpers have the
       following hexadecimal values: jumper JP5/J=4000h, JP5/I=8000h, JP5/H=10000h, JP5/G=20000h,
       JP5/F=40000h, JP5/E=80000h, JP5/D100000h, JP5/C=200000h, JP5/B=400000h, JP5/A=800000h.
       Open the jumpers and add the values of the open jumpers to obtain the correct base I/O
       address. (closed=0, open=1)

                                          INTERRUPT SELECTION

  IRQ   JP7/A   JP7/B    JP7/C    JP7/D    JP7/E    JP7/F    JP8/A    JP8/B    JP8/C   JP8/D    JP8/E

  2     Closed   Open     Open     Open     Open    Open     Open     Open     Open     Open     Open

  3     Open    Closed    Open     Open     Open    Open     Open     Open     Open     Open     Open

  4     Open     Open    Closed    Open     Open    Open     Open     Open     Open     Open     Open

  5     Open     Open     Open    Closed    Open    Open     Open     Open     Open     Open     Open

  6     Open     Open     Open     Open    Closed   Open     Open     Open     Open     Open     Open

  7     Open     Open     Open     Open     Open    Closed   Open     Open     Open     Open     Open

  10    Open     Open     Open     Open     Open    Open     Closed   Open     Open     Open     Open

  11    Open     Open     Open     Open     Open    Open     Open     Closed   Open     Open     Open

  12    Open     Open     Open     Open     Open    Open     Open     Open     Closed   Open     Open

  14    Open     Open     Open     Open     Open    Open     Open     Open     Open    Closed    Open

  15    Open     Open     Open     Open     Open    Open     Open     Open     Open     Open    Closed

                          BUS SIZE CONFIGURATION

                 Size                                  JP9

                  8 BIT                        pins 3 & 4 closed

                 16 BIT                        pins 1 & 2 closed

                       SHARED RAM SIZE CONFIGURATION

         Size                     JP4                       JP6

          16K              pins 1 & 2, 3 & 4         pins 1 & 3, 2 & 4
                                closed                    closed

          64K              pins 1 & 2 closed         pins 1 & 3, 2 & 4
                                                          closed

         128K              pins 3 & 4 closed         pins 1 & 3, 2 & 4
                                                          closed

         512K                    Open                pins 3 & 5, 4 & 6
                                                          closed

  PAGE REGISTER CONFIGURATION

     Select           JP10

    Enabled          Closed

    Disabled          Open

         PROTOCOL SELECTION

      Select            JP12

  Ethernet 802.3        Open

  Ethernet 802.2       Closed

                           TRANSCEIVER SELECTION

           Select                      U68                    U69

   Onboard transceiver for            Empty                 NP 5421
          RG-58A/U

        External 802.3               NP 5421                 Empty
         transceiver

        External 802.2               Shunted                 Empty
         transceiver

                            DIAGNOSTIC LED(S)

     LED        Color        Status                Condition

    LED1        Green          On         Adapter has passed self test

    LED1        Green         Off       Adapter has not passed self test

