
EASTERN ELECTRONICS COMPANY

IDC-747

Data bus: 16-bit, ISA

Size: Full-length, full-height card

Hard drives supported: Four IDE (AT) Interface drives

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

[Image]

                                CONNECTIONS

                     Function                              Location

  34-pin data cable connector-floppy drives                  CN1

  40-pin IDE (AT) Interface connector-drives 1 & 2           CN2

  40-pin IDE (AT) Interface connector-drives 3 & 4           CN3

  4-pin connector-drive active LED                           CN4

                        USER CONFIGURABLE SETTINGS

              Function                    Location            Setting

     Normal I/O decoder speed               JP1             pins 1 & 2
                                                              closed

      Fast I/O decoder speed                 JP1             pins 2 & 3
                                                              closed

     Hard drive port address is        JP3/jumper 4          closed
      1F0-1F7h, 3F6-3F7h

      Hard drive port address is        JP3/jumper 4           open
      170-177h, 376-377h

     Floppy drive enabled              JP3/jumper 5          closed

      Floppy drive disabled             JP3/jumper 5           open

     Factory configured - do not       JP3/jumper 6          closed
      alter

     Factory configured - do not       JP3/jumper 7            N/A
      alter

                               BIOS ADDRESS

      Address          JP3/jumper 1      JP3/jumper 2      JP3/jumper 3

         D800h            open             closed            closed

          D000h            open              open             closed

          C800h            open             closed             open

        Disabled           open              open              open

                             INTERRUPT REQUEST

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

       IRQ5       closed          open           open            open

      IRQ12        open          closed          open            open

     IRQ14        open           open          closed           open

      IRQ15        open           open           open           closed

                       MISCELLANEOUS TECHNICAL NOTES

    This card's cache feature supports 256KB, 1MB, or 4MB SIMM's; making
   the maximum cache capacity 16MB. The same size SIMM must be installed
  in each socket of a bank and Bank 0 must be filled for proper operation
                            of the controller.

