MICRONICS COMPUTERS, INC.

386-I CACHE

Processor         80386DX
Processor Speed   20/25/33MHz
Chip Set          Micronics
Max. Onboard DRAM None
Cache             32/64KB
BIOS              Phoenix
Dimensions        355mm x 305mm
I/O Options       32-bit external memory card slot
NPU Options       80387/3167

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  External battery            J2       Auxiliary keyboard         J25

  32-bit external            J20       Reset switch                W1
  memory card

  Power LED & keylock        J21       Turbo LED                   W9

  Speaker                    J22       Turbo switch               W15

                        USER CONFIGURABLE SETTINGS

              Function                  Jumper/Switch         Position

  »   Factory configured - do not           SW1/1                On
      alter

  »   NPU select 3167 or none               SW1/2               Off

      NPU select 80387                      SW1/2                On

  »   Factory configured - do not           SW1/3               Off
      alter

  »   Video BIOS shadowing enabled          SW1/4                On

      Video BIOS shadowing disabled         SW1/4               Off

  »   Factory configured - do not           SW1/5               Off
      alter

  »   Monitor type select color             SW1/6                On

      Monitor type select                   SW1/6               Off
      monochrome

  »   Cache enabled                         SW1/7                On

      Cache disabled                        SW1/7               Off

  »   Factory configured - do not           SW1/8               Off
      alter

  »   Non-cacheable region select            W22             pins 1 & 2
      E00000 to EFFFFF                                         closed

      Non-cacheable region select            W22                Open
      D00000 to DFFFFF

  »   Factory configured - do not            W23                Open
      alter

  »   Factory configured - do not            W30             pins 2 & 3
      alter                                                    closed

  Note:The location of W23 & W30 are unidentified.

                            CACHE CONFIGURATION

      Size             Organization           Bank 0           Bank 1

      32KB           directly mapped        (4) 8K x 8          NONE

      64KB        2 way set-associative     (4) 8K x 8       (4) 8K x 8

                  CACHE JUMPER CONFIGURATION

        Size                 W12                  W13

        32KB           pins 1 & 2 closed   pins 1 & 2 closed

        64KB                 Open          pins 2 & 3 closed

                             NPU CONFIGURATION

             Setting                      W7                   W8

       NPU synchronous with        pins 1 & 2 closed         Closed
       oscillator at U109

    NPU synchronous with CPU             Open                 Open

[Image]

             DRAM CONFIGURATION

     Size          Bank 0        Bank 1

      1MB        (36) 41256       NONE

      2MB        (36) 41256    (36) 41256

      4MB        (36) 411000      NONE

      5MB        (36) 41256    (36) 411000

      8MB        (36) 411000   (36) 411000

                         DRAM JUMPER CONFIGURATION

  Size    SW1/1   SW1/2   SW1/3    SW1/4   SW1/5   SW1/6   SW1/7   SW1/8

  1MB      On      Off     On       On      On      Off     Off     Off

  2MB     Off      On      On       On      On      Off     Off     Off

  4MB      On      On      Off     Off      On      Off     Off     Off

  5MB     Off      Off     Off      On      On      Off     Off     Off

  8MB     Off      On      Off     Off      On      Off     Off     Off