TEXAS MICRO, INC.

D386SX CPU (REV. B)

Device Type                Single board computer
Processor                  80386SX
Processor Speed            20/25MHz
Chip Set                   Unidentified
Maximum Onboard Memory     16MB
Cache                      None
BIOS                       Unidentified
Dimensions                 183mm x 122mm
I/O Options                Floppy drive interface, IDE interface, parallel
                           port, serial ports (2)
NPU Options                80387SX

[Image]

                                CONNECTIONS

  Purpose                    Location   Purpose                  Location

  IDE interface                J1       Serial port 1              J4

  Floppy drive interface       J2       Parallel port              J5

  Serial port 2                J3       External battery           JP1

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

  »   Battery enabled                         JP1           Pins 1 & 2
                                                              closed

      Battery disabled                        JP1           Pins 2 & 3
                                                              closed

      External battery installed              JP1             Closed

  »   Parallel port IRQ select IRQ7           JP2           Pins 2 & 3
                                                              closed

      Parallel port IRQ select IRQ5           JP2           Pins 1 & 2
                                                              closed

  »   User program setup loaded               JP3           Pins 2 & 3
                                                              closed

      Default program setup loaded            JP3           Pins 1 & 2
                                                              closed

  »   Monitor type select color               JP4           Pins 1 & 2
                                                              closed

      Monitor type select monochrome          JP4           Pins 2 & 3
                                                              closed

              SIMM CONFIGURATION

      Size          Bank 0          Bank 1

     512KB        (2) 256K x 9       None

      1MB         (2) 256K x 9   (2) 256K x 9

      2MB         (2) 1M x 9         None

      4MB         (2) 1M x 9      (2) 1M x 9

      8MB         (2) 4M x 9         None

      16MB        (2) 4M x 9      (2) 4M x 9