UNIDENTIFIED

MAT 286 MICRO AT (BA15D)

Processor         80286
Processor Speed   16/20MHz
Chip Set          None
Max. Onboard DRAM 4MB
Cache             None
BIOS              Quadtel
Dimensions        220mm x 220mm
I/O Options       None
NPU Options       80287

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  External battery            JP3      Power LED & keylock         JP9

  Turbo switch                JP7      Speaker                    JP10

  Reset switch                JP8      Turbo LED                  JP11

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Turbo switch default high speed          JP1           pins 2 & 3
                                                              closed

      Turbo switch default low speed           JP1           pins 1 & 2
                                                              closed

  »   Monitor type select color                JP2            Closed

      Monitor type select monochrome           JP2             Open

  »   ATCLK source select crystal Y3/4        JP12            Closed

      ATCLK source select crystal Y2/4        JP12             Open

  »   NPU clock source select crystal         JP13           pins 1 & 2
      Y3/3                                                    closed

      NPU clock source select crystal         JP13           pins 2 & 3
      Y4/3                                                    closed

                            DRAM CONFIGURATION

     Size          Bank 0          Bank 1         Bank 2        Bank 3

    512KB        (4) 44256          NONE           NONE          NONE

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

    640KB        (4) 44256        (4) 4464         NONE          NONE

     1MB         (4) 44256       (4) 44256         NONE          NONE

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

     2MB         (4) 441000         NONE           NONE          NONE

    2.5MB        (4) 44256       (4) 441000        NONE          NONE

    2.5MB        (4) 44256          NONE        (2) 1M x 9       NONE

     4MB         (4) 441000      (4) 441000        NONE          NONE

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