TEXAS INSTRUMENTS

SYSTEM 1200/1300

Processor         80386DX
Processor Speed   16/20MHz
Chip Set          Texas Instruments
Max. onboard DRAM 8MB
Cache             None
BIOS              Texas Instruments
Dimensions        260mm x 220mm
I/O Options       External memory slot, parallel port, serial port
NPU Options       80387DX

[Image]

                                CONNECTIONS

  Purpose                 Location    Purpose                   Location

  External memory slot       J3       CMOS battery                J10

  Serial port                J8       Optional keyboard           J11
                                      connector

  Parallel port              J9

                        USER CONFIGURABLE SETTINGS

               Function                     Switch            Position

  »   Monitor type select color          SW1/switch 1            On

      Monitor type select monochrome     SW1/switch 1           Off

  »   NPU enabled                       SW1/switch 2 & 3         On

      NPU disabled                      SW1/switch 2 & 3        Off

  »   NPU synchronous with CPU           SW1/switch 4           Off

      NPU asynchronous                   SW1/switch 4            On

              DRAM CONFIGURATION

      Size          Bank 0          Bank 1

      1MB         (4) 256K x 9       NONE

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

      4MB         (4) 1M x 9         NONE

      8MB         (4) 1M x 9      (4) 1M x 9

                       LED CONFIGURATION

  Red1   Yel.    Gre.    Red2             Item failed

   On     On      On      On                  CPU

   On     On      On     Off          8142 test keyboard

   On     On      Off     On           8254 timer 1 test

   On     On      Off    Off             ROM CRC check

   On     Off     On      On             CMOS RAM test

   On     Off     On     Off          Memory refresh test

   On     Off     Off     On           0 - 256K RAM test

   On     Off     Off    Off            Turbo mode test

  Off     Off     Off    Off          Turbo parity error

  Off     Off     Off     On         Nonturbo parity error

  Off     On      On      On               8259 test

  Off     On      On      On         8254 timer interrupt

  Off     On      On     Off          Protected mode test

  Off     On      Off     On           8254 timer 2 test

  Off     On      Off    Off               DMA test