
MICROMEDIA TECHNOLOGIES, INC.

386-U

Processor         80386DX/CX486DLC
Processor Speed   33/40MHz
Chip Set          UMC
Max. Onboard DRAM 32MB
Cache             64/128/256KB
BIOS              AMI
Dimensions        220mm x 220mm
I/O Options       None
NPU Options       80387DX/3167

[Image]

                                CONNECTIONS

  Purpose                   Location    Purpose                  Location

  Speaker                      W1       Turbo switch               W4

  Power LED & keylock          W2       Turbo LED                  W5

  Reset switch                 W3

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Factory configured - do not              W9              N/A
      alter

     Factory configured - do not             W10              N/A
      alter

     CMOS memory normal operation            W11           pins 1 & 2
                                                              closed

      CMOS memory clear                       W11           pins 2 & 3
                                                              closed

              DRAM CONFIGURATION

      Size          Bank 0          Bank 3

      1MB         (4) 256K x 9       NONE

      2MB         (4) 256K x 9   (4) 256K x 9

      4MB         (4) 1M x 9         NONE

      5MB         (4) 1M x 9     (4) 256K x 9

      8MB         (4) 1M x 9      (4) 1M x 9

      16MB        (4) 4M x 9         NONE

      32MB        (4) 4M x 9      (4) 1M x 9

                    CACHE CONFIGURATION

     Size          Bank 0         Bank 1          TAG

     64KB        (4) 8K x 8     (4) 8K x 8    (1) 8K x 8

     128KB      (4) 32K x 8        NONE       (1) 8K x 8

     256KB      (4) 32K x 8    (4) 32K x 8    (1) 32K x 8

                        CACHE JUMPER CONFIGURATION

    Size         WC1         WC2           WC3         WC4         WC5

    64KB       pins 2 &      Open         Open       pins 1 &    pins 1 &
                  3                                     2           2

    128KB      pins 1 &      Open        Closed      pins 1 &    pins 2 &
                  2                                     2           3

    256KB      pins 2 &     Closed       Closed      pins 2 &    pins 2 &
                  3                                     3           3

  Note:Pins designated should be in the closed position.

                             NPU CONFIGURATION

     NPU          Mode        JP101       JP102        W6          W7

   Enabled       Sync.        Open       pins 2 &    Closed      Closed
                                            3

   Disabled      Async.      Closed      pins 1 &     Open        Open
                                            2

  Note:Pins designated should be in the closed position.

