EISA TECH CORPORATION

SINGLE-CHIP 286

Processor         80286
Processor Speed   12/16MHz
Chip Set          Acer
Max. Onboard DRAM 5MB
Cache             None
BIOS              AMI/Award
Dimensions        230mm x 215mm
I/O Options       None
NPU Options       80287

[Image]

                                CONNECTIONS

  Purpose               Location       Purpose              Location

  External                 J1          Turbo switch     J2 pins 10 & 12 &
  battery                                                      14

  Keylock            J2 pins 1 & 3     Reset switch     J2 pins 18 & 20

  Turbo LED          J2 pins 4 & 6     Speaker          J2 pins 13 & 15 &
                                                            17 & 19

  Power LED          J2 pins 5 & 7 &
                           9

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Monitor type select color                JP4           pins 3 & 4
                                                              closed

      Monitor type select monochrome           JP4           pins 1 & 2
                                                              closed

      NPX clock mode select CPU CLK/3         JP11            Closed

      NPX clock mode select CPU CLK/1         JP11             Open

                            DRAM CONFIGURATION

   Size      U25 -      U17 &      U33 -      U16 &     Bank 0    Bank 1
              U28        U19        U36        U18

  512KB       (4)        (2)       NONE       NONE       NONE      NONE
             44256      41256

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

   1MB        (4)        (2)        (4)        (2)       NONE      NONE
             44256      41256      44256      41256

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

   2MB        (4)        (2)        (4)        (2)        (2)       (2)
             44256      41256      44256      41256     256K x     256K x
                                                          9          9

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

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

   5MB        (4)        (2)        (4)        (2)      (2) 1M     (2) 1M
             44256      41256      44256      41256      x 9        x 9

  Note:Either DIP (U17,U19,U25,U26,U27,U28) or SIMM may be used as Bank
  0.

                  DRAM JUMPER CONFIGURATION

  Size      JP5     JP6      JP7      JP8      JP9     JP10

  512KB    1 & 2   1 & 2    1 & 2    1 & 2    1 & 2    1 & 2

  512KB    2 & 3   2 & 3    2 & 3    2 & 3    2 & 3    2 & 3

   1MB     1 & 2   1 & 2    1 & 2    1 & 2    1 & 2    1 & 2

   1MB     2 & 3   2 & 3    2 & 3    2 & 3    2 & 3    2 & 3

   2MB     1 & 2   1 & 2    1 & 2    1 & 2    1 & 2    1 & 2

   2MB     2 & 3   2 & 3    2 & 3    2 & 3    2 & 3    2 & 3

   4MB     2 & 3   2 & 3    2 & 3    2 & 3    2 & 3    2 & 3

   5MB     1 & 2   1 & 2    1 & 2    1 & 2    1 & 2    1 & 2

  Note:Pins designated should be in the closed position.