
CMS ENHANCEMENTS, INC.

HCWD27X

  Data bus:                  8-bit ISA

  Size:                      Half length, full-height card

  Hard drive supported:      Two RLL ST506/412 drives

  Floppy drives supported:   None

[Image]

                           CONNECTIONS

                  Function                         Location

  34-pin data cable connector - hard drive            J1

  20-pin data cable connector - drive 0               J2

  20-pin data cable connector - drive 1               J3

  External power connector                            J4

  4-pin connector - drive active LED                  J5

                        USER CONFIGURABLE SETTINGS

                Function                    Location          Setting

     Interrupt select IRQ5                    W27              open

      Interrupt select IRQ2                    W27             closed

     AT compatibility enabled                 W28             closed

      XT compatibility enabled                 W28              open

                              ADDRESS SELECT

    I/O Address       Base Memory Address       W21              W22

         320h              C8000h              open            open

          324h              CA000h             closed           open

          328h              CC000h              open           closed

          32Ch              CE000h             closed          closed

                     PRE-SELECTED DRIVE CONFIGURATION

                                     Drive 0   Drive 1

      Capacity   Heads   Cylinders     W17       W18      W19       W20

      32MB        4        615       open      open      open     open

       65MB        6        820      closed    closed    closed   closed

       42MB        4        782       open     closed     open    closed

       21MB        2        782      closed     open     closed    open

                                TRANSLATION

      Setting          Dynamic       Sectors         W25          W26

       Disabled         Yes            26          open         closed

        Enabled           No            17         closed         open

