
UNIDENTIFIED

SCAT-SX

Processor         80386SX
Processor Speed   20/25MHz
Chip Set          Unidentified
Max. Onboard DRAM 16MB
Cache             32KB (located on external cache card)
BIOS              Unidentified
Dimensions        220mm x 220mm
I/O Options       External cache card slot
NPU Options       80387SX

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  Reset switch                J1       Power LED & keylock         J5

  Turbo switch                J2       External battery            J7

  Turbo LED                   J3       External cache card         S1
                                       slot

  Speaker                     J4

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Monitor type select color               P03           pins 2 & 3
                                                              closed

      Monitor type select monochrome          P03           pins 1 & 2
                                                              closed

     CMOS memory normal operation            P04             Closed

      CMOS memory clear                       P04              Open

     CMOS memory normal operation            P05              Open
      (External battery)

      CMOS memory normal operation            P05             Closed
      (Internal battery)

     Pipeline mode enabled                   P18             Closed

      Pipeline mode disabled                  P18              Open

     NPU RDY signal enabled                  P19             Closed

      NPU RDY signal disabled or NPU          P19              Open
      not installed

                            DRAM CONFIGURATION

     Size          Bank 0        Bank 1         Bank 2         Bank 3

     512KB      (2) 256K x 9      NONE           NONE           NONE

      1MB       (2) 256K x 9   (2) 256K x 9      NONE           NONE

     1.5MB      (2) 256K x 9   (2) 256K x 9   (2) 256K x 9      NONE

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

      2MB        (2) 1M x 9       NONE           NONE           NONE

      3MB       (2) 256K x 9   (2) 256K x 9   (2) 1M x 9        NONE

      4MB        (2) 1M x 9    (2) 1M x 9        NONE           NONE

      5MB       (2) 256K x 9   (2) 256K x 9   (2) 1M x 9     (2) 1M x 9

      6MB        (2) 1M x 9    (2) 1M x 9     (2) 1M x 9        NONE

      8MB        (2) 1M x 9    (2) 1M x 9     (2) 1M x 9     (2) 1M x 9

      8MB        (2) 4M x 9       NONE           NONE           NONE

     12MB        (2) 1M x 9    (2) 1M x 9     (2) 4M x 9        NONE

     16MB        (2) 4M x 9    (2) 4M x 9        NONE           NONE

[Image]

                        CACHE JUMPER CONFIGURATION

      Size          P11         P12        P13         P14         P15

    16KB/DM       pins 1 &    pins 1 &   pins 1 &    pins 1 &    pins 1 &
                     2           2          2           2           2

    16KB/TWS      pins 1 &    pins 1 &   pins 1 &    pins 1 &    pins 1 &
                     2           2          2           2           2

    32KB/DM       pins 2 &    pins 2 &   pins 2 &    pins 2 &    pins 2 &
                     3           3          3           3           3

    32KB/TWS      pins 1 &    pins 1 &   pins 1 &    pins 1 &    pins 1 &
                     2           2          2           2           2

  Note:DM = Direct mapped and TWS = Two-wait associative.

  Pins designated should be in the closed position.

