MYLEX CORPORATION

DCE376

Data bus: 32 bit, EISA

Size: Full-length, full-height card

Hard drives supported: Up to seven SCSI devices

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

Maximum heads/cyl.: 16 heads and 2048 cylinders

[Image]

                        CONNECTIONS

                  Function                     Location

  34-pin data cable connector-floppy drive        P0

  50-pin SCSI connector-internal                  P3

  4-pin connector-drive active LED                P5

                  USER CONFIGURABLE SETTINGS (FOR REV 1D)

               Function                    Location           Setting

  »   Factory configured - do not           J1 & J2          pins 2 & 3
      alter                                                   closed

  »   Supports 64K PROM                       J5             pins 2 & 3
                                                              closed

      Supports 128K PROM                      J5             pins 1 & 2
                                                              closed

  »   Hard Drive Interrupt IRQ14              J10            pins 1 & 2
      enabled                                                 closed

      Hard Drive Interrupt IRQ14              J10              open
      disabled

  »   Factory configured - do not             J11            pins 2 & 3
      alter                                                   closed

  »   Factory configured - do not          J12 & J13         pins 1 & 2
      alter                                                   closed

                  USER CONFIGURABLE SETTINGS (FOR REV 1E)

               Function                    Location           Setting

  »   Supports 64K PROM                       J1             pins 2 & 3
                                                              closed

      Supports 128K PROM                      J1             pins 1 & 2
                                                              closed

  »   Factory configured - do not             J2             pins 2 & 3
      alter                                                   closed

  »   Factory configured - do not             J9             pins 2 & 3
      alter                                                   closed

  »   Hard Drive Interrupt IRQ14              J10            pins 1 & 2
      enabled                                                 closed

      Hard Drive Interrupt IRQ14              J10              open
      disabled

  »   Floppy drive enabled                    J11            pins 2 & 3
                                                              closed

      Floppy drive disabled                   J11            pins 1 & 2
                                                              closed
      (Revisions prior to "1E"
      require special PROM's)

  »   Factory configured - do not             J12            pins 1 & 2
      alter                                                   closed

  »   DCE376 emulates primary                 J13            pins 1 & 2
      controller position                                     closed

      DCE376 emulates secondary               J13            pins 2 & 3
      controller position                                     closed

      Factory setting for 3Px                 J14            pins 1 & 2
      firmware                                                closed

      Factory setting for 2Px                 J14            pins 2 & 3
      firmware                                                closed

  »   Factory configured - do not             J16              open
      alter

                     CACHE CONFIGURATION (FOR REV 1D)

    Size        J3        J4        J6         J7        J8         J9

   256KB       pins 1    pins 1    open      pins 1    pins 1    pins 1 &
                & 2       & 2                 & 2       & 2         2

   1024KB      pins 2    pins 2    open      pins 1    pins 2    pins 1 &
                & 3       & 3                 & 2       & 3         2

   4096KB      pins 2    open      pins 2    pins 2    pins 2    pins 2 &
                & 3                 & 3       & 3       & 3         3

  Note:Pins designated should be in the closed position.

                     CACHE CONFIGURATION (FOR REV 1E)

    Size        J3       J4          J5         J6        J7        J8

   256KB      pins 1    pins 1   pins 1 & 2    open     pins 1   pins 1 &
               & 2       & 2                             & 2        2

   1024KB     pins 2    pins 2   pins 1 & 2    open     pins 2   pins 1 &
               & 3       & 3                             & 3        2

   4096KB     pins 2    open     2-3 closed   pins 2    pins 2   pins 2 &
               & 3                             & 3       & 3        3

  Note:Pins designated should be in the closed position.