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.