
DTK COMPUTER, INC.

PTI-255H

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

  4-pin connector -           J1       16-pin game port            J5
  drive active LED

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

  40-pin secondary            J3       10-pin serial port 2        J7
  IDE(AT) connector                    - internal

  34-pin cable connector      J4       25-pin parallel port        J8
  - floppy drive                       - external

                        USER CONFIGURABLE SETTINGS

                  Function                      Label        Position

     IDE(0) interface enabled                   W8          Pins 2 & 3
                                                              closed

      IDE(0) interface disabled                  W8          Pins 1 & 2
                                                              closed

     IDE(1) interface enabled                   W9          Pins 2 & 3
                                                              closed

      IDE(1) interface disabled                  W9          Pins 1 & 2
                                                              closed

     Floppy drive interface enabled             W22           Open

      Floppy drive interface disabled            W22          Closed

     Game port enable                           W24           open

      Game port disable                          W24          closed

     Serial port 1 enabled                      W27           Open

      Serial port 1 disabled                     W27          Closed

     Parallel port enabled                      W28           Open

      Parallel port disabled                     W28          Closed

     Serial port 2 enabled                      W30           Open

      Serial port 2 disabled                     W30          Closed

                      PARALLEL PORT ADDRESS SELECTION

          Setting                   Label                 Position

          LPT1 (378h)               W25                    Open

           LPT2 (278h)               W25                   Closed

                      SERIAL PORT 1 ADDRESS SELECTION

          Setting                   Label                 Position

          COM1 (3F8h)               W26                    Open

           COM3 (3E8h)               W26                   Closed

                      SERIAL PORT 2 ADDRESS SELECTION

          Setting                   Label                 Position

          COM2 (2F8h)               W29                    Open

           COM4 (2E8h)               W29                   Closed

                     SERIAL PORT 1 INTERRUPT SELECTION

       IRQ                W36                W37                W38

         IRQ3             Open              Closed             Open

        IRQ4            Closed              Open              Open

         IRQ5             Open               Open             Closed

                     SERIAL PORT 2 INTERRUPT SELECTION

       IRQ                W39                W40                W41

        IRQ3            Closed              Open              Open

         IRQ4             Open              Closed             Open

         IRQ5             Open               Open             Closed

                     PARALLEL PORT INTERRUPT SELECTION

            IRQ                      W42                     W43

            IRQ7                  Closed                   Open

             IRQ5                   Open                   Closed

                       PARALLEL PORT MODE SELECTION

             Setting                    Label              Position

          Uni-directional               W23                Closed

       Bi-Directional (EPP/ECP)          W23                 Open

                      I/O CHANNEL READY

  I/O Channel ready         Label               Position

         ISA                  W6           Pins 1 & 2 closed

        759A                  W6           Pins 2 & 3 closed

                              SPEED SELECTION

           Speed                   Label                  Position

             33MHz                  W10              Pins 1 & 2 closed

            50MHz                  W10              Pins 2 & 3 closed

                           IDE TIMING SELECTION

        IDE Timing                   W11                     W12

         240ns (mode 3)       Pins 1 & 2 closed       Pins 1 & 2 closed

         400ns (mode 2)       Pins 1 & 2 closed       Pins 2 & 3 closed

         500ns (mode 1)       Pins 2 & 3 closed       Pins 1 & 2 closed

        600ns (mode 0)       Pins 2 & 3 closed       Pins 2 & 3 closed

                    FLOPPY DISK DRIVE ADDRESS SELECTION

         Address                   Label                 Position

            3F0h                   W21                    Open

             370h                   W21                   Closed

