
TEXAS INSTRUMENTS

SYSTEM 1000

Processor         80286
Processor Speed   12MHz
Chip Set          AMD
Max. onboard DRAM 640KB (location unknown) 12MB external
Cache             None
BIOS              AMD
Dimensions        330mm x 218mm
I/O Options       External memory card, parallel port, serial port
NPU Options       80287

[Image]

                                CONNECTIONS

  Purpose                Location     Purpose                  Location

  Serial port               J8        External memory card        J3
                                      connector

  Parallel port             J9        External memory card        J4
                                      connector

                        USER CONFIGURABLE SETTINGS

              Function                  Jumper/Switch         Position

     BIOS size select standard            E1 & E2              Open
      size

      BIOS size select larger size         E1 & E2             Closed

     Speaker select internal            E3, E4, & E5          E4 & E5
                                                               closed

      Speaker select external            E3, E4, & E5           Open

     Factory configured - do not          E6 & E7               N/A
      alter

     BUS cycle wait state select        SW1/switch 1            On
      normal

      BUS cycle wait state select        SW1/switch 1            Off
      shortened

     NPU disabled                       SW1/switch 2            Off

      NPU enabled                        SW1/switch 2            On

     Factory configured - do not        SW1/switch 5            Off
      alter

     NPU speed select 4MHz              SW1/switch 6            Off

      NPU speed select 8MHz              SW1/switch 6            On

     Factory configured - do not        SW1/switch 7            Off
      alter

     Monitor type select color          SW2/switch 7            On

      Monitor type select                SW2/switch 7            Off
      monochrome

  BASE MEMORY CONFIGURATION

   Size     SW1/3     SW1/4

  256KB      Off       Off

  512KB      Off       On

  640KB       On       On

                     PARALLEL PORT CONFIGURATION

    Mode        LPT        IRQ        SW2/1       SW2/2      SW2/3

  Enabled      LPT1        IRQ7        Off         Off        Off

  Disabled     LPT1        IRQ5        On          Off        On

  Enabled      LPT1        IRQ5        Off         Off        On

  Disabled     LPT1        IRQ7        On          Off        Off

  Enabled      LPT2        IRQ7        Off         On         Off

  Disabled     LPT2        IRQ5        On          On         On

  Enabled      LPT2        IRQ5        Off         On         On

  Disabled     LPT2        IRQ7        On          On         Off

                      SERIAL PORT CONFIGURATION

    Mode        COM        IRQ        SW2/4       SW2/5      SW2/6

  Enabled      COM1        IRQ7        Off         Off        Off

  Disabled     COM1        IRQ5        On          Off        On

  Enabled      COM1        IRQ5        Off         Off        On

  Disabled     COM1        IRQ7        On          Off        Off

  Enabled      COM2        IRQ7        Off         On         Off

  Disabled     COM2        IRQ5        On          On         On

  Enabled      COM2        IRQ5        Off         On         On

  Disabled     COM2        IRQ7        On          On         Off

               LED SELF TEST CONFIGURATION

  Green     Yellow    Red            Item Failed

    On       On        On                CPU

    On       On       Off        8142 test keyboard

    On       Off       On         8254 timer 1 test

    On       Off      Off           ROM CRC check

   Off       On        On           CMOS RAM test

   Off       On       Off        Memory refresh test

   Off       Off       On        0 - 256KB RAM test

   Off       Off      Off          Turbo mode test

   Off       Off      Off        Turbo parity error

   Off       Off       On       Nonturbo parity error

    On       On        On             8259 test

    On       On        On       8254 timer interrupt

    On       On       Off        Protected mode test

    On       Off       On         8254 timer 2 test

    On       Off      Off             DMA test



[Image]

                           MEMORY CONFIGURATION

   Size     Bank 0    Bank 1     Bank 2     Bank 3    Bank 4     Bank 5

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

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

  1.5MB       (2)       (2)        (2)       NONE      NONE       NONE
            256K x     256K x     256K x
              9          9          9

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

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

  2.5MB       (2)       (2)        (2)        (2)       (2)       NONE
            256K x     256K x     256K x    256K x     256K x
              9          9          9         9          9

   3MB        (2)       (2)        (2)        (2)       (2)      (2) 256K
            256K x     256K x     256K x    256K x     256K x      x 9
              9          9          9         9          9

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

   6MB      (2) 1M     (2) 1M     (2) 1M     NONE      NONE       NONE
             x 9        x 9        x 9

   8MB      (2) 1M     (2) 1M     (2) 1M    (2) 1M     NONE       NONE
             x 9        x 9        x 9       x 9

   10MB     (2) 1M     (2) 1M     (2) 1M    (2) 1M     (2) 1M     NONE
             x 9        x 9        x 9       x 9        x 9

  640KB     (2) 1M     (2) 1M     (2) 1M    (2) 1M     (2) 1M    (2) 1M x
             x 9        x 9        x 9       x 9        x 9         9

    MEMORY JUMPER CONFIGURATION

   SIMMs      E1 & E2    E3 & E4

  256K x 9    Closed      Closed

   1M x 9      Open        Open

