
DATA TECHNOLOGY CORPORATION

DTC2278EB (400529-89A)

Card Type               Hard drive controller card
Hard Drives supported   Four EIDE drives
Floppy drives supported Two 360KB, 720KB, 1.2MB, or 1.44MB drives
Data Bus                32-bit VESA Local Bus
Card Size               Full-length, half-height card

[Image]

                                CONNECTIONS

        Function          Location           Function           Location

  25-pin parallel port -     CN2      40-pin secondary             J6
  external                            IDE(AT) connector

  10-pin serial port 2 -     J2       40-pin primary IDE(AT)       J7
  internal                            connector

  16-pin game port           J4       2-pin connector -            J8
                                      drive active LED

  34-pin cable connector     J5
  - floppy drive

                        USER CONFIGURABLE SETTINGS

                  Function                      Label        Position

     Game port enabled                          W6           Closed

      Game port disabled                         W6            Open

                 ECP DMA CHANNEL SELECTION

      Channel           W1        W2        W3        W4

         1            Closed     Open     Closed     Open

         3             Open     Closed     Open     Closed

               PARALLEL PORT ADDRESS SELECTION

       Setting               W19                  W20

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

     LPT2 (278h)       Pins 1 & 2 closed   Pins 2 & 3 closed

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

      Disabled         Pins 1 & 2 closed   Pins 1 & 2 closed

               SERIAL PORT 1 ADDRESS SELECTION

       Setting               W23                  W24

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

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

      Disabled         Pins 1 & 2 closed   Pins 1 & 2 closed

               SERIAL PORT 2 ADDRESS SELECTION

       Setting               W21                  W22

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

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

      Disabled         Pins 1 & 2 closed   Pins 1 & 2 closed

                          BIOS ADDRESS SELECTION

      Address              W18              W27                W28

       DC000h            Closed          Pins 1 & 2         Pins 1 & 2
                                           closed             closed

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

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

       C8000h            Closed          Pins 2 & 3         Pins 2 & 3
                                           closed             closed

      Disabled            Open              Open               Open

   SERIAL PORT 1 INTERRUPT SELECTION

    IRQ       W12      W13        W14

   IRQ4      Open      Open     Closed

   IRQ3      Open     Closed     Open

   IRQ5      Closed    Open      Open

   SERIAL PORT 2 INTERRUPT SELECTION

    IRQ       W9       W10        W11

   IRQ3      Open      Open     Closed

   IRQ4      Open     Closed     Open

   IRQ5      Closed    Open      Open

  PARALLEL PORT INTERRUPT SELECTION

     IRQ          W7          W8

    IRQ7         Open       Closed

    IRQ5        Closed       Open

                     PARALLEL PORT MODE SELECTION

        Setting                   W15                     W16

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

       ECP & EPP           Pins 1 & 2 closed       Pins 2 & 3 closed

  EPP & Bi-Directional     Pins 2 & 3 closed       Pins 1 & 2 closed

        Invalid            Pins 1 & 2 closed       Pins 1 & 2 closed

               MISCELLANEOUS TECHNICAL NOTES

  Floppy is automatically enabled when cable is attached

