AMERICAN DIGICOM CORPORATION

DIGIS-286C

Processor         80286 (exact location unknown)
Processor Speed   12MHz
Chip Set          Suntac
Max. Onboard DRAM 4MB
Cache             None
BIOS              Award/Phoenix
Dimensions        330mm x 218mm
I/O Options       None
NPU Options       None

[Image]

                                CONNECTIONS

  Purpose                   Location    Purpose                  Location

  Speaker                     J19       Turbo LED                  JP4

  Power LED & keylock         J20       Turbo switch               JP5

  External battery            J21       Reset switch               JP6

                        USER CONFIGURABLE SETTINGS

              Function                  Jumper/Switch        Position

  »   CPU clock speed select high          DSP1/1               On

      CPU clock speed select low           DSP1/1               Off

  »   Factory configured - do not          DSP1/2               On
      alter

  »   I/O wait state select 4 wait         DSP1/3               On
      states

      I/O wait state select 6 wait         DSP1/3               Off
      states

  »   EMS port address select 0EBH         DSP1/4               On

      EMS port address select 098H         DSP1/4               Off

  »   RAM size select 256KB                  J18             pins 1 & 2
                                                              closed

      RAM size select 512KB                  J18             pins 2 & 3
                                                              closed

  »   CPU clock speed select high            JP1               Open

      CPU clock speed select low             JP1             pins 2 & 3
                                                              closed

  »   I/O wait control select                JP3             pins 1 & 2
      keyboard                                                closed

      I/O wait control select                JP3             pins 2 & 3
      DSP1/3                                                  closed

  »   Turbo enabled                          JP4              Closed

      Turbo disabled                         JP4               Open

  »   BIOS type select Phoenix               JP7             pins 1 & 2
                                                              closed

      BIOS type select Award                 JP7             pins 2 & 3
                                                              closed

  »   DRAM mode select expanded              JP8               Open

      DRAM mode select extended              JP8              Closed

  »   DRAM wait state select 1              JP19               Open
      wait state

      DRAM wait state select 0              JP19              Closed
      wait states

  Note: The location of DSP1 is unknown.

                            DRAM CONFIGURATION

  Mode     Size     Base     Extended    Expanded     Bank 0     Bank 1

   0      512KB    512KB       0KB         0KB         (18)       NONE
                                                      41256

   1      640KB    640KB       0KB         0KB         (18)     (18) 4164
                                                      41256

   2       1MB     640KB      384KB        0KB         (18)        (18)
                                                      41256       41256

   3       1MB     640KB       0KB        384KB        (18)        (18)
                                                      41256       41256

   4       2MB     640KB      1408KB       0KB         (18)       NONE
                                                      411000

   5       2MB     640KB       0KB        1408KB       (18)       NONE
                                                      411000

   6       4MB     640KB      3456KB       0KB         (18)        (18)
                                                      411000     411000

   7       4MB     640KB       0KB        3456KB       (18)        (18)
                                                      411000     411000

         DRAM SWITCH CONFIGURATION

   Mode      DSP1/6     DSP1/7    DSP1/8

     0         On         On        On

     1         On         On        Off

     2         On        Off        On

     3         On        Off        Off

     4        Off         On        On

     5        Off         On        Off

     6        Off        Off        On

     7        Off        Off        Off

  Note: The location of DSP1 is unknown.

                      BIOS CONFIGURATION

        Size                DSP1/5                JP9

        27128                 On           pins 1 & 2 closed

        27256                Off           pins 2 & 3 closed