Datatech PTI-245 ATA Controller
View of the PTI-245 board.
  • CN1: Parallel Port Connector
  • J1: Hard Drive Connector
  • J2: Floppy Drive Connector
  • JP7: Hard Drive LED Connector
    • Default settings are in Bold or are selected by a (Default) or (Optional)
    (JP2): Printer Port Mode
  • (Default Setting): Open: Bidirectional Mode.
  • (Optional Setting): Jumpered: Output-Only Mode.

    • (JP3): I/O, Floppy, & IRQ
    View of the JP3 Jumper block.

    RS-232-1
    JP3(1-6) Port (Addr)
    1/2 5/6 COM1 (3F8)
    2/3 4/5 COM3 (3E8)
    2/3 5/6 Disabled
    (Default is COM1.)

    RS-232-2
    JP3(7-12) Port (Addr)
    7/8 11/12 COM2 (2F8)
    8/9 10/11 COM4 (2E8)
    8/9 11/12 Disable
    (Default is COM2.)

    Printer Port Address
    JP3(13-18) Port (Addr)
    13/14 16/17 LPT3 (38C)
    14/15 16/17 LPT2 (278)
    13/14 17/18 LPT1 (378)
    14/15 17/18 Disable
    (Default is LPT1.)

    Floppy Drive
    JP3(19-21) Support
    19/20 Enable
    20/21 Disable
    (Default is Enable.)

    Printer Interrupt
    JP3(22-24) IRQ
    22/23 IRQ#7
    23/24 IRQ#5
    (Default is IRQ#7.)

    (JP5): External BIOS
    JP5 consists of 5 sets of vertical jumper pairs. Only one pair (#5) is defined in the manual, as allowing selection of an external BIOS. This jumper is set open from the factory. (no jumper)

    ATA Speed Setting
    JP6(1-6) Speed
    1/2 4/5 #0 (slow)
    2/3 4/5 #1 (fast)
    2/3 5/6 #2 (turbo)
    (Default is #1.)

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