
EASTERN ELECTRONICS COMPANY

IDC-767 DISK ACCELERATOR

  Data bus:                32-bit, VL-bus

  Size:                    Three/quarter-length, full-height card

  Hard drive supported:    Four IDE (AT) Interface drives

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

[Image]

                              CONNECTIONS

                    Function                           Location

  40-pin IDE(AT) Interface connector - IDE-0              J1

  40-pin IDE(AT) Interface connector - IDE-1              J2

  34-pin control cable connector - floppy drive           J3

  4-pin connector - Drive active LED                      JP1

                        USER CONFIGURABLE SETTINGS

              Function                    Location            Setting

     IDE-0 (J1) read signal                 JP3                open
      damping enabled

      IDE-0 (J1) read signal                 JP3               closed
      damping disabled

     IDE-1 (J2) read signal                 JP4                open
      damping enabled

      IDE-1 (J2) read signal                 JP4               closed
      damping disabled

     IDE-0 (J1) write signal                JP5                open
      damping enabled

      IDE-0 (J1) write signal                JP5               closed
      damping disabled

     IDE-1 (J2) write signal                JP6                open
      damping enabled

      IDE-1 (J2) write signal                JP6               closed
      damping disabled

     Hard drive port address is        JP7/jumper 4           closed
      1F0-1F7, 3F6 & 3F7h

      Hard drive port address is        JP7/jumper 4            open
      170-177, 376 & 377h

     Floppy drive enabled              JP7/jumper 5           closed

      Floppy drive disabled             JP7/jumper 5            open

     Normal operation                  JP7/jumper 6           closed

      Test mode enabled                 JP7/jumper 6            open

                             INTERRUPT REQUEST

    IRQ       JP2/jumper 1   JP2/jumper 2    JP2/jumper 3   JP2/jumper 4

       5        closed           open           open            open

       12        open           closed          open            open

      14        open            open          closed           open

       15        open            open           open           closed

                         BIOS ADDRESS

    Address      JP7/Jumper 1    JP7/Jumper 2    JP7/Jumper 3

     DC000h         closed          closed          closed

     D8000h          open           closed          closed

     D4000h         closed           open           closed

     D0000h          open            open           closed

     CC000h         closed          closed           open

     C8000h          open           closed           open

    Disabled          n/a            open            open

                           LOCAL BUS CLOCK SKEW

  [Image]

                    Select                              JP8

     Fastest skew                               pins 2 & 5 closed

      Medium skew                                pins 1 & 2 closed

      Slowest skew                               pins 2 & 3 closed

