DTK COMPUTER, INC.

PTI-227W (VER. 3)

Data Bus                16-bit ISA
Card Size               Half-length, half-height card
Hard Drives supported   Two IDE (AT) drives
Floppy drives supported Two 360KB, 720KB, 1.2MB, or 1.44MB drives

[Image]

                                CONNECTIONS

        Function           Location          Function           Location

  40-pin IDE(AT)             JP1      34-pin cable connector      JP5
  connector                           - floppy drive

  16-pin game port           JP2      2-pin connector -           JP8
                                      drive active LED

  9-pin serial port 1 -      JP3      25-pin parallel port -      JP15
  external                            external

  10-pin serial port 2 -     JP4
  internal

                        USER CONFIGURABLE SETTINGS

                  Function                     Label         Position

  »    IDEIOR path ATBUS IOR select              J1          Pins 2 & 3
                                                              closed

       IDEIOR path W83758P chipset (IOROP)       J1          Pins 1 & 2
       select                                                 closed

  »    IDEIOW path ATBUS IOW select              J2          Pins 2 & 3
                                                              closed

       IDEIOW path W83758P chipset (IOWOP)       J2          Pins 1 & 2
       select                                                 closed

  »    Floppy drive order is normal (A:,       JP6/1         Pins 1 & 2
       B:)                                                    closed

       Floppy drive order is reversed (B:,     JP6/1         Pins 2 & 3
       A:)                                                    closed

  »    Floppy drive I/O address is             JP6/2         Pins 2 & 3
       3F0-3F7h                                               closed

       Floppy drive I/O address is             JP6/2         Pins 1 & 2
       370-377h                                               closed

  »    IDE(AT) interface enabled               JP6/3         Pins 1 & 2
                                                              closed

       IDE(AT) interface disabled              JP6/3         Pins 2 & 3
                                                              closed

  »    IDE I/O address is 3F6, 3F7,            JP6/4         Pins 2 & 3
       1F0-1F7h                                               closed

       IDE I/O address is 376, 377,            JP6/4         Pins 1 & 2
       170-177h                                               closed

  »    Floppy drive enabled                    JP6/5         Pins 1 & 2
                                                              closed

       Floppy drive disabled                   JP6/5         Pins 2 & 3
                                                              closed

       Parallel port is bidirectional           JP11           Open

       Parallel port is output only             JP11          Closed

  »    Game port enabled                        JP16          Closed

       Game port disabled                       JP16           Open

                      PARALLEL PORT ADDRESS SELECTION

           Setting                   JP9/5                  JP9/6

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

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

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

            Disabled           Pins 2 & 3 closed      Pins 2 & 3 closed

                      SERIAL PORT 1 ADDRESS SELECTION

           Setting                   JP9/1                  JP9/2

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

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

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

            Disabled           Pins 2 & 3 closed      Pins 2 & 3 closed

                      SERIAL PORT 2 ADDRESS SELECTION

           Setting                   JP9/3                  JP9/4

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

           COM3 (3E8h)         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

                     SERIAL PORT 1 INTERRUPT SELECTION

          IRQ                JP12/1           JP12/2           JP12/3

            IRQ3              Open            Closed            Open

  »         IRQ4             Closed            Open             Open

            IRQ5              Open             Open            Closed

                     SERIAL PORT 2 INTERRUPT SELECTION

          IRQ                JP12/4           JP12/5           JP12/6

  »         IRQ3             Closed            Open             Open

            IRQ4              Open            Closed            Open

            IRQ5              Open             Open            Closed

                     PARALLEL PORT INTERRUPT SELECTION

            IRQ                    JP12/7                  JP12/8

             IRQ5                   Open                   Closed

  »          IRQ7                  Closed                   Open

                       MISCELLANEOUS TECHNICAL NOTES

  In jumpers JP6/1-5 and JP9/1-6, pin positions 1 &2 correspond to "low"
  board positions. Positions 2 & 3 correspond to "high" board positions.