QUATECH, INC.

MPA-200/300

Card Type          I/O controller
Chipset/Controller Intel
I/O Options        Serial port
Maximum DRAM       N/A

[Image]

                                CONNECTIONS

                 Purpose                              Location

  Female D-25 serial port - data                        CN1
  communications equipment

  (Optional) Male D-25 serial port -                    CN2
  data terminal equipment

  Note: The MPA 200 is either DCE or DTE port equipped, but not both

                            CLOCK SPEED SELECT

                Speed                                  J1

  »                8MHz                         Pins 1 & 2 closed

                   6MHz                         Pins 2 & 3 closed

            INTERRUPT SHARING

       Setting                J4

       Enabled        Pins 1 & 2 closed

      Disabled        Pins 2 & 3 closed

                        INTERRUPT SELECTION

          IRQ                     J5                    J6

        IR/FONT>          Pins 1 & 7 closed            Open

          IRQ3            Pins 2 & 8 closed            Open

          IRQ4            Pins 3 & 9 closed            Open

          IRQ5            Pins 4 & 10 closed           Open

                        INTERRUPT SELECTION

          IRQ                     J5                    J6

          IRQ6            Pins 5 & 11 closed           Open

          IRQ7            Pins 6 & 12 closed           Open

         IRQ10                   Open           Pins 1 & 6 closed

         IRQ11                   Open           Pins 2 & 7 closed

         IRQ12                   Open           Pins 3 & 8 closed

         IRQ14                   Open           Pins 4 & 9 closed

         IRQ15                   Open           Pins 5 & 10 closed

                    DMA TRANSMIT CHANNEL

           Setting                         J10

          Channel 1             Pins 1 & 7, 2 & 8 closed

          Channel 2             Pins 3 & 9, 4 & 10 closed

          Channel 3            Pins 5 & 11, 6 & 12 closed

                            DMA RECEIVE CHANNEL

               Setting                                J11

              Channel 1                     Pins 1 & 7, 2 & 8 closed

              Channel 2                    Pins 3 & 9, 4 & 10 closed

              Channel 3                    Pins 5 & 11, 6 & 12 closed

       Note: Do not use the same channel for both DMA transmit and
       receive functions. Closing the same Pins on J10 and J11 will
       result in damage to the system.

                            LINE DRIVER CONTROL

                  Setting                                 J7

    Drivers and receivers always enabled       Pins 1 & 2, 4 & 5 closed

     Drivers and receivers controlled by       Pins 2 & 3, 5 & 6 closed
            programming register

  Note: Location of J7 is not specified on manufacturer documentation.

  SYNCA/RLEN CONFIGURATION

   Setting          J8

    SYNCA         Closed

     RLEN          Open

                         I/O ADDRESS CONFIGURATION

          Address                    SW1                     SW2

           300h              1, 2, 3, 4, 5 & 6 on   1, 2, 3, 4, 5 & 6 on

           240h              1, 2, 3, 4, 5, 6 & 8     1, 3, 4, 5 & 6 on
                                      on

           6FC4h                   1 & 4 on              3, 4 & 5 on

       Note:The address range for the DMM-100 is from 0 to FFFFh. The
       switches are a binary representation of the addresses. The
       switches have the following decimal values: SW1/1=8, SW1/2=4,
       SW1/3=2, SW1/4=1, SW1/5=8, SW1/6=4, SW1/7=2, SW1/8=1, SW2/1=8,
       SW2/2=4, SW2/3=2, SW2/4=1, SW2/5=8, SW2/6=4.

  FACTORY CONFIGURED SETTINGS

     Jumper         Setting

       J2             N/A

       J3             N/A