
DATA TECHNOLOGY CORPORATION

DTC2278EB (400523-89A)

Card Type               Hard drive controller card
Hard drives supported   Four IDE(AT) interface drives
Floppy drives supported Two 360KB, 720KB, 1.2MB, 1.44MB drives
Data-bus                32-bit VESA Local Bus
Size                    Full-length, half-height card

[Image]

                                CONNECTIONS

        Function            Label            Function             Label

  25-pin parallel port -     J1       34-pin control cable         J5
  external                            connector - floppy
                                      drive

  10-pin serial port 2 -     J2       40-pin IDE(AT)               J6
  internal                            secondary interface
                                      connector

  9-pin serial port 1 -      J3       40-pin IDE(AT) primary       J7
  external                            interface connector

  16-pin game port -         J4       Drive active LED             J8
  internal

                       USER CONFIGURABLE CONNECTIONS

                Function                    Location          Setting

     Game port enabled                        W29             Closed

      Game port disabled                       W29              Open

     Floppy drive interface enabled           W30           Pins 1 & 2
                                                               closed

      Floppy drive interface disabled          W30           Pins 2 & 3
                                                               closed

                      SERIAL PORT 1 ADDRESS SELECTION

           Setting                    W22                    W23

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

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

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

            Disabled           Pins 2 & 3 closed      Pins 2 & 3 closed

               SERIAL PORT 2 ADDRESS SELECTION

       Setting               W20                  W21

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

     COM2 (2F8h)       Pins 1 & 2 closed   Pins 1 & 2 closed

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

      Disabled         Pins 2 & 3 closed   Pins 2 & 3 closed

               PARALLEL PORT ADDRESS SELECTION

       Setting               W18                  W19

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

     LPT2 (278h)       Pins 1 & 2 closed   Pins 1 & 2 closed

     LPT3 (3BCh)       Pins 1 & 2 closed   Pins 2 & 3 closed

      Disabled         Pins 2 & 3 closed   Pins 2 & 3 closed

                     SERIAL PORT 1 INTERRUPT SELECTION

         IRQ                 W15               W16              W17

           IRQ3              Open            Closed             Open

          IRQ4              Open             Open             Closed

           IRQ5             Closed            Open              Open

                     SERIAL PORT 2 INTERRUPT SELECTION

         IRQ                 W12               W13              W14

          IRQ3              Open             Open             Closed

           IRQ4              Open            Closed             Open

           IRQ5             Closed            Open              Open

                     PARALLEL PORT INTERRUPT SELECTION

           IRQ                      W10                      W11

             IRQ5                  Closed                   Open

            IRQ7                   Open                   Closed

                          BIOS ADDRESS SELECTION

         Address                 W7              W8              W24

      C8000h-CBFFFh          Pins 2 & 3      Pins 2 & 3        Closed
                               closed          closed

      CC000h-CFFFFh          Pins 2 & 3      Pins 1 & 2        Closed
                               closed          closed

      D8000h-DBFFFh          Pins 1 & 2      Pins 2 & 3        Closed
                               closed          closed

      DC000h-DFFFFh          Pins 1 & 2      Pins 1 & 2        Closed
                               closed          closed

         Disabled               Open            Open            Open

                   DMA CHANNEL SELECTION

      Channel           W1        W2        W3        W4

         1            Closed     Open     Closed     Open

         3             Open     Closed     Open     Closed

                       PARALLEL PORT MODE SELECTION

          Setting                 W9             W25             W31

    Bidirectional /ECP        Pins 2 & 3      Pins 1 & 2       Closed
                                closed          closed

    Bidirectional /EPP        Pins 1 & 2      Pins 2 & 3        Open
                                closed          closed

      Uni-directional         Pins 2 & 3      Pins 2 & 3        Open
                                closed          closed

         EPP & ECP            Pins 1 & 2      Pins 1 & 2       Closed
                                closed          closed

