
MORSE TECHNOLOGIES, INC.

P1

Processor         80486SX/80487SX/80486DX
Processor Speed   16/20/25/33MHz
Chip Set          Morse
Max. Onboard DRAM 16MB
Cache             64/128/256KB
BIOS              AMI/Award
Dimensions        220mm x 220mm
I/O Options       None
NPU Options       4167

[Image]

                                CONNECTIONS

  Purpose                   Location    Purpose                  Location

  External battery            JP2       Turbo LED                 JP16

  Power LED & keylock         JP14      Speaker                   JP17

  Turbo switch                JP15      Reset switch              JP18

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Battery select internal 3.6VDC           JP4            Closed

      Battery select external 6VDC             JP4             Open

     Parity check enabled                     JP5            Closed

      Parity check disabled                    JP5             Open

     Monitor type select color                JP6            Closed

      Monitor type select monochrome           JP6             Open

     CMOS memory normal operation             JP7             Open

      CMOS memory clear                        JP7            Closed

     Keyboard diagnostic disabled            JP19             Open

      Keyboard diagnostic enabled             JP19            Closed

  Note:Locations of JP5, JP6, JP7, & JP19 are unidentified.

              DRAM CONFIGURATION

      Size          Bank 0          Bank 1

      1MB         (4) 256K x 9       NONE

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

      4MB         (4) 1M x 9         NONE

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

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

      16MB        (4) 4M x 9         NONE

      17MB        (4) 4M x 9     (4) 256K x 9

      20MB        (4) 1M x 9      (4) 4M x 9

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

                           CACHE CONFIGURATION

     Size         Bank 0         Bank 1       TAG (U26)      TAG (U42)

     64KB       (4) 8K x 8     (4) 8K x 8     (1) 8K x 8       NONE

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

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

                  SRAM JUMPER CONFIGURATION

  Size      JP8A      JP8B       JP8D      JP8E       JP8F

  64KB     2 & 3      2 & 3     2 & 3      2 & 3     2 & 3

  128KB    1 & 2      1 & 2     1 & 2      1 & 2     2 & 3

  256KB    2 & 3      1 & 2     2 & 3      1 & 2     1 & 2

  Note:Pins designated should be in the closed position.

                          CPU TYPE CONFIGURATION

      Type              JP12               JP13               JP30

    80486SX          Pins 2 & 3         pins 2 & 3            Open
                       closed             closed

    80487SX          pins 1 & 2         pins 1 & 2      pins 2 & 3 closed
                       closed             closed

    80486DX          pins 1 & 2         pins 1 & 2      pins 1 & 2 closed
                       closed             closed

  Note:When changing the CPU, the Oscillator at Y2 must also be changed
  so that its speed is equal

  to twice the speed of the processor. e.g. A 25MHz CPU would require a
  50MHz Oscillator.

