
DATA TECHNOLOGY CORPORATION

DTC2278VL (900085-89A)

  Data bus:                32-bit VL-Bus

  Size:                    Three/quarter-length, half-height card

  Hard drive supported:    Two IDE(AT) interface drives

  Floppy drives            Two 360KB, 720KB, 1.2MB, 1.44MB drives
  supported:

[Image]

                        CONNECTIONS

                Function                      Location

  25-pin parallel port                           J1

  10-pin serial port 2                           J2

  10-pin serial port 1                           J3

  16-pin game port                               J4

  34-pin cable connector - floppy drive          J5

  40-pin connector - IDE(AT) interface           J6

  4-pin connector - drive active LED             J7

                        USER CONFIGURABLE SETTINGS

                 Function                    Location         Setting

     Game port enabled                         W1            closed

      Game port disabled                        W1             open

     Parallel port is uni-directional          W2            closed

      Parallel port is bi-directional           W2             open

     IDE(AT) interface interrupt IRQ14         W9           pins 1 & 2
      select                                                  closed

      IDE(AT) interface interrupt IRQ15         W9           pins 2 & 3
      select                                                  closed

     Floppy drive interface enabled            W10          pins 2 & 3
                                                              closed

      Floppy drive interface disabled           W10          pins 1 & 2
                                                              closed

     Floppy drive interface address            W11          pins 1 & 2
      3F0-3F7h select                                         closed

      Floppy drive interface address            W11          pins 2 & 3
      370-377h select                                         closed

     IDE(AT) interface address 1F0-1F7,        W12          pins 1 & 2
      3F6-3F7h select                                         closed

      IDE(AT) interface address 170-177,        W12          pins 2 & 3
      376-377h select                                         closed

     IDE(AT) interface enabled                 W13          pins 2 & 3
                                                              closed

      IDE(AT) interface disabled                W13          pins 1 & 2
                                                              closed

                   PRIMARY SERIAL PORT ADDRESS SELECTION

             COM                       W7                     W8

          COM1 (3F8h)          pins 1 & 2 closed      pins 2 & 3 closed

           COM3 (3E8h)          pins 2 & 3 closed      pins 1 & 2 closed

           COM4 (2E8h)          pins 2 & 3 closed      pins 2 & 3 closed

             Disabled           pins 1 & 2 closed      pins 1 & 2 closed

                  SECONDARY SERIAL PORT ADDRESS SELECTION

             COM                       W5                     W6

          COM2 (2F8h)          pins 1 & 2 closed      pins 2 & 3 closed

           COM3 (3E8h)          pins 2 & 3 closed      pins 2 & 3 closed

           COM4 (2E8h)          pins 2 & 3 closed      pins 1 & 2 closed

             Disabled           pins 1 & 2 closed      pins 1 & 2 closed

                      PARALLEL PORT ADDRESS SELECTION

             LPT                       W3                     W4

          LPT1 (378h)          pins 1 & 2 closed      pins 2 & 3 closed

           LPT2 (278h)          pind 2 & 3 closed      pins 1 & 2 closed

           LPT3 (3BCh)          pins 2 & 3 closed      pins 2 & 3 closed

             Disabled           pins 1 & 2 closed      pins 1 & 2 closed

            IDE DATA TRANSFER RATE (FOR >33MHZ VL-BUS SYSTEMS)

  Rate (MBps)      W14         W15         W16         W17         W18

      3.3        pins 1 &    pins 2 &    pins 1 &    pins 2 &    pins 2 &
                    2           3           2           3           3

      3.6        pins 2 &    pins 1 &    pins 1 &    pins 2 &    pins 2 &
                    3           2           2           3           3

      3.8        pins 1 &    pins 1 &    pins 1 &    pins 2 &    pins 2 &
                    2           2           2           3           3

      4.2        pins 2 &    pins 2 &    pins 2 &    pins 1 &    pins 2 &
                    3           3           3           2           3

      4.5        pins 1 &    pins 2 &    pins 2 &    pins 1 &    pins 2 &
                    2           3           3           2           3

      5.0        pins 2 &    pins 1 &    pins 2 &    pins 1 &    pins 2 &
                    3           2           3           2           3

      5.6        pins 1 &    pins 1 &    pins 2 &    pins 1 &    pins 2 &
                    2           2           3           2           3

      6.3        pins 2 &    pins 2 &    pins 1 &    pins 1 &    pins 2 &
                    3           3           2           2           3

      7.2        pins 1 &    pins 1 &    pins 1 &    pins 1 &    pins 2 &
                    2           2           2           2           3

       Note: Pins designated are in the closed position. If the transfer
       rate of the drive you are using in your sytem does not exactly
       match one of the rates listed above, select the rate which is
       closest to but below the actual rate of the drive.

            IDE DATA TRANSFER RATE (FOR <=33MHZ VL-BUS SYSTEMS)

  Rate (MBps)       W14         W15         W16        W17         W18

        3.9      pins 2 &    pins 2 &    pins 1 &   pins 2 &    pins 1 &
                     3           3           2          3           2

         3.3      pins 1 &    pins 2 &    pins 2 &   pins 2 &    pins 1 &
                     2           3           3          3           2

         3.5      pins 2 &    pins 1 &    pins 2 &   pins 2 &    pins 1 &
                     3           2           3          3           2

         3.7      pins 1 &    pins 1 &    pins 2 &   pins 2 &    pins 1 &
                     2           2           3          3           2

         4.2      pins 1 &    pins 2 &    pins 1 &   pins 2 &    pins 1 &
                     2           3           2          3           2

         4.4      pins 2 &    pins 1 &    pins 1 &   pins 2 &    pins 1 &
                     3           2           2          3           2

         4.8      pins 1 &    pins 1 &    pins 1 &   pins 2 &    pins 1 &
                     2           2           2          3           2

         5.1      pins 2 &    pins 2 &    pins 2 &   pins 1 &    pins 1 &
                     3           3           3          2           2

         5.6      pins 1 &    pins 2 &    pins 2 &   pins 1 &    pins 1 &
                     2           3           3          2           2

         6.1      pins 2 &    pins 1 &    pins 2 &   pins 1 &    pins 1 &
                     3           2           3          2           2

         6.7      pins 1 &2   pins 1 &    pins 2 &   pins 1 &    pins 1 &
                                 2           3          2           2

         7.4      pins 2 &    pins 2 &    pins 1 &   pins 1 &    pins 1 &
                     3           3           2          2           2

         8.3      pins 1 &    pins 1 &    pins 1 &   pins 1 &    pins 1 &
                     2           2           2          2           2

       Note: Pins designated are in the closed position. If the transfer
       rate of the drive you are using in your sytem does not exactly
       match one of the rates listed above, select the rate which is
       closest to but below the actual rate of the drive.

                  PRIMARY SERIAL PORT INTERRUPT SELECTION

        IRQ                W19               W20                W21

         IRQ4           closed              open              open

          IRQ3            open              closed             open

          IRQ5            open               open             closed

                 SECONDARY SERIAL PORT INTERRUPT SELECTION

        IRQ                W22               W23                W24

         IRQ3           closed              open              open

          IRQ4            open              closed             open

          IRQ5            open               open             closed

                     PARALLEL PORT INERRUPT SELECTION

            IRQ                      W25                     W26

             IRQ7                  closed                   open

              IRQ5                   open                   closed

