
TMC RESEARCH CORPORATION

JATO 286+

Processor         80286
Processor Speed   10/12/16/20MHz
Chip Set          LSI
Max. Onboard DRAM 8MB
Cache             None
BIOS              Unidentified
Dimensions        330mm x 218mm
I/O Options       None
NPU Options       80287

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  Turbo LED                   J1       Serial port 1               J6

  Power LED & keylock         J2       External battery            J8

  Speaker                     J3       Reset switch                JP1

  Serial port 2               J4       Reset switch                JP5

  Parallel port               J5

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     NPU clock speed select CPU clock        JP2           pins 1 & 2
                                                              closed

      NPU clock speed select OSC1             JP2           pins 2 & 3
                                                              closed

     BIOS type select 27128                  JP3           pins 1 & 2
                                                              closed

      BIOS type select 27256                  JP3           pins 2 & 3
                                                              closed

     Power good signal detect from           JP4           pins 2 & 3
      board                                                   closed

      Power good signal detect from           JP4           pins 1 & 2
      power supply                                            closed

     Monitor type select color               JP6             Closed

      Monitor type select monochrome          JP6              Open

     Battery type select internal            JP7             Closed

      Battery type select external            JP7              Open

     Parallel port enabled                   JP8              Open

      Parallel port disabled                  JP8             Closed

     Serial port 2 enabled                   JP9              Open

      Serial port 2 disabled                  JP9             Closed

     Serial port 1 enabled                   JP10             Open

     Serial port 1 disabled                  JP10            Closed

      Factory configured - do not             JP11             Open
      alter

  Note: The location of JP6 is unidentified.

                       DRAM CONFIGURATION (OPTION 1)

     Size          Bank 0         Bank 1         Bank 2         Bank 3

    512KB        (18) 41256        NONE           NONE           NONE

    640KB        (18) 41256      (18) 4164        NONE           NONE

     1MB         (18) 41256     (18) 41256        NONE           NONE

     2MB         (18) 41256     (18) 41256      (2) 256K x    (2) 256K x
                                                    9             9

     4MB        (18) 411000     (18) 411000       NONE           NONE

     5MB        (18) 411000     (18) 411000     (2) 256K x    (2) 256K x
                                                    9             9

     8MB        (18) 411000     (18) 411000    (2) 1M x 9     (2) 1M x 9

                       DRAM CONFIGURATION (OPTION 2)

     Size          Bank 0         Bank 1         Bank 2         Bank 3

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

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

     2MB         (18) 41256     (18) 41256      (2) 256K x    (2) 256K x
                                                    9             9

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

     5MB         (18) 41256     (18) 41256     (2) 1M x 9     (2) 1M x 9

     5MB        (18) 411000     (18) 411000     (2) 256K x    (2) 256K x
                                                    9             9

     8MB        (18) 411000     (18) 411000    (2) 1M x 9     (2) 1M x 9

                        DRAM RESISTOR CONFIGURATION

    Size         AR23            AR24           AR25            AR26

  Option 1     Installed      Installed          Not        Not Installed
                                              Installed

  Option 2        Not             Not         Installed       Installed
               Installed      Installed

                    DRAM RESISTOR CONFIGURATION (CONT)

    Size         AR27            AR28           AR29            AR30

  Option 1        Not             Not         Installed       Installed
               Installed      Installed

  Option 2     Installed      Installed          Not        Not Installed
                                              Installed

