Western Digital WD1007V-SE1/SE2 ESDI Controller
(View of the Controller)
  • J1: Floppy Drive Connector (SE2 model Only)
  • J3: Hard Drive #1 Data Connector
  • J4: Hard Drive #0 Data Connector
  • J5: Hard Drive Control Connector
  • J6: HD Activity LED Connector
    • Default settings are in Bold or are selected by a (Default) or (Optional)
    W1: Options

  • (1/2): Look-Ahead Cache

  • (Default Setting): Open to Enable.
  • (Optional Setting): Jumper to Disable.

    • (3/4): Error Correction Code

  • (Default Setting): Open for 4-Byte ECC.
  • (Optional Setting): Jumper for 7-Byte ECC.

    • (5/6): Disk Address Translation

  • (Default Setting): Open to Enable Translation.
  • (Optional Setting): Jumper to Disable Translation.

    • (7/8): Reserved... No Jumper.

    (9/10): Sectors Per Track (SPT)

  • (Default Setting): Open for SPT as given from Drive ( See Note #1 ).
  • (Optional Setting): Jumper to Force 35 SPT.

    • (11/12): Spare Sector Reserve

  • (Optional Setting): Open for No Alternate Sector per Track.
  • (Optional Setting): Jumper to Keep an Alternate Sector per Track.

    • W3: Onboard BIOS

  • (Default Setting): Open to Enable the BIOS.
  • (Optional Setting): Jumper to Disable the BIOS.

    • W5: Dual Speed Floppy Support (SE2 model Only)

  • (Default Setting): Open for Single Speed Floppies Only (300 RPM).
  • (Optional Setting): Jumper for Dual Speed Support (300/360 RPM). ( See Note 2 )

    • W6: Floppy Drive I/O Address (SE2 model Only)

  • (Default Setting): Open for Primary Address.
  • (Optional Setting): Jumper for Secondary Address.

    • W7(1-3): Interrupt Selection

  • (Default Setting): (1/2): IRQ#14.
  • (Optional Setting): (2/3): IRQ#15.

    • W8(1-3): BIOS Address

  • (Optional Setting): (1/2): C800-CBFF.
  • (Default Setting): (2/3): CC00-CFFF.

    • W12: HD I/O Address

  • (Default Setting): Open for Primary Address.
  • (Optional Setting): Jumper for Secondary Address.

    • Note 1: This jumper is ignored for drives with 15Mb/s data rate.

    Note 2: Do NOT mix single and dual speed drives in the same system.

    The WD1007V-SE controller requires that you set a drive type of #1 in CMOS. The BIOS on the controller then performs the necessary translation. A Low Level Format routine is contained in the controller BIOS, and is accessed through the Debug command at offset :5 (ie: g=cc00:5) If the Controller's BIOS is disabled, a LLF program like WDFMT.EXE will be required. The WD1007V controller can be used as a replacement for the WD1007A without requiring a LLF, but ONLY if jumpers W1(9/10) and W1(11/12) are installed.
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