
DTK COMPUTER, INC.

PTI-255W (VER. 1.01)

  Data bus:                  32-bit VL-bus

  Size:                      Three-quarter length, half-height card

  Hard drive supported:      Four IDE(AT) drives

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

[Image]

                                CONNECTIONS

                    Function                             Location

  40-pin primary IDE(AT) connector                          J1

  40-pin secondary IDE(AT) connector                        J2

  34-pin cable connector - floppy drive                     J3

  16-pin game port                                          J4

  10-pin serial port 1 - internal, 9-pin                    J5
  serial port 1 - external

  10-pin serial port 2 - internal                           J6

  25-pin Parallel port                                      J7

  2-pin connector - drive active LED                        J8

                         DRIVE SPEED CONFIGURATION

           Speed                    JP1/4                   JP1/5

            600ns            pins 1 & 2 closed       pins 1 & 2 closed

             500ns            pins 2 & 3 closed       pins 1 & 2 closed

             400ns            pins 1 & 2 closed       pins 2 & 3 closed

             240ns            pins 2 & 3 closed       pins 2 & 3 closed

                        USER CONFIGURABLE SETTINGS

               Function                    Location           Setting

     Secondary IDE(AT) IOCHRDY              JP3               open
      signal disabled

      Secondary IDE(AT) IOCHRDY              JP3              closed
      signal enabled

     Primary IDE(AT) IOCHRDY signal         JP4              closed
      enabled

      Primary IDE(AT) IOCHRDY signal         JP4               open
      disabled

     Parallel port is                       JP6              closed
      unidirectional

      Parallel port is                       JP6               open
      bi-directional

     Game port enabled                      JP8              closed

      Game port disabled                     JP8               open

     IDE(AT) interface enabled             JP1/1            pins 1 & 2
                                                              closed

      IDE(AT) interface disabled            JP1/1            pins 2 & 3
                                                              closed

     IDE(AT) address is 170h & 1F0h        JP1/2            pins 1 & 2
                                                              closed

      IDE(AT) address is 1F0h               JP1/2            pins 2 & 3
                                                              closed

     CPU speed is 50MHz                    JP1/3            pins 1 & 2
                                                              closed

      CPU speed is 33MHz                    JP1/3            pins 2 & 3
                                                              closed

     Floppy drive order is normal          JP2/1            pins 1 & 2
      (A:, B:)                                                closed

      Floppy drive order is reversed        JP2/1            pins 2 & 3
      (B:, A:)                                                closed

     Floppy drive address is 3F0h          JP2/2            pins 1 & 2
                                                              closed

      Floppy drive address is 370h          JP2/2            pins 2 & 3
                                                              closed

     Floppy drive interface enabled        JP2/3            pins 1 & 2
                                                              closed

      Floppy drive interface                JP2/3            pins 2 & 3
      disabled                                                closed

                      SERIAL PORT 1 ADDRESS SELECTION

             COM                      JP5/1                  JP5/2

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

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

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

             Disabled           pins 2 & 3 closed      pins 1 & 2 closed

                      SERIAL PORT 2 ADDRESS SELECTION

             COM                      JP5/3                  JP5/4

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

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

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

             Disabled           pins 2 & 3 closed      pins 1 & 2 closed

                      PARALLEL PORT ADDRESS SELECTION

             LPT                      JP5/5                  JP6/6

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

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

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

             Disabled           pins 1 & 2 closed      pins 2 & 3 closed

                     PARALLEL PORT INTERRUPT SELECTION

           IRQ                     JP7/1                    JP7/1

             7                    closed                   open

              5                     open                   closed

