
DEICO ELECTRONICS, INC.

386SX-MIDGET

Processor                 80386SX
Processor Speed           16/20MHz
Chip Set                  OPTI
Max. Onboard DRAM         8MB
Cache                     None
BIOS                      AMI
Dimensions                220mm x 220mm
I/O Options               Floppy drive interface, IDE interface, Parallel
                          port, Serial port (2)
NPU Options               80387SX

[Image]

                            DRAM CONFIGURATION

     Size          Bank 0         Bank 1         Bank 0         Bank 1

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

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

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

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

      3MB        (2) 256K x 9  (2) 256K x 9    (2) 1M x 9        NONE

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

      5MB        (2) 256K x 9  (2) 256K x 9    (2) 1M x 9     (2) 1M x 9

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

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

                                CONNECTIONS

  Purpose                Location       Purpose               Location

  Serial port 1             J13         Reset switch            J19

  Serial port 2             J14         Power LED &             J20
                                        keylock

  Parallel port             J15         Speaker                 J21

  IDE interface             J16         Turbo switch       J22/pins 1 & 2

  Floppy drive              J17         Turbo LED          J22/pins 3 & 4
  interface

  IDE interface LED         J18

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Parallel port (J15) select LPT1          W1            pins 1 & 2
      at 378h                                                 closed

      Parallel port (J15) select LPT2          W1            pins 2 & 3
      at 278h                                                 closed

      Parallel port (J15) disabled             W1            pins 3 & 4
                                                              closed

     Serial port 1 (J13) select COM1          W2            pins 1 & 2
      at 3F8h                                                 closed

      Serial port 1 (J13) select COM3          W2            pins 2 & 3
      at 3E8h                                                 closed

      Serial port 1 (J13) disabled             W2            pins 3 & 4
                                                              closed

     Serial port 2 (J14) select COM2          W3            pins 1 & 2
      at 2F8h                                                 closed

      Serial port 2 (J14) select COM4          W3            pins 2 & 3
      at 2E8h                                                 closed

      Serial port 2 (J14) disabled             W3            pins 3 & 4
                                                              closed

     Parallel port (J15) select IRQ7          W4            pins 1 & 2
                                                              closed

      Parallel port (J15) select IRQ5          W4            pins 2 & 3
                                                              closed

      Parallel port (J15) select               W4            pins 3 & 4
      disabled                                                closed

     IRQ3 select serial port 2 (J14)          W5            pins 1 & 2
                                                              closed

      IRQ3 select serial port 1 (J13)          W5            pins 2 & 3
                                                              closed

      IRQ3 disabled                            W5            pins 3 & 4
                                                              closed

     IRQ4 select serial port 1 (J13)          W6            pins 2 & 3
                                                              closed

      IRQ4 select serial port 2 (J14)          W6            pins 1 & 2
                                                              closed

      IRQ4 disabled                            W6            pins 3 & 4
                                                              closed

     IRQ5 disabled                            W7            pins 3 & 4
                                                              closed

      IRQ5 select serial port 2 (J14)          W7            pins 1 & 2
                                                              closed

      IRQ5 select serial port 1 (J13)          W7            pins 2 & 3
                                                              closed

     IRQ9 disabled                            W8            pins 3 & 4
                                                              closed

      IRQ9 select serial port 2 (J14)          W8            pins 1 & 2
                                                              closed

      IRQ9 select serial port 1 (J13)          W8            pins 2 & 3
                                                              closed

     Floppy drive interface enabled           W9            pins 1 & 2
                                                              closed

      Floppy drive interface disabled          W9            pins 2 & 3
                                                              closed

     IDE interface enabled                    W10           pins 1 & 2
                                                              closed

      IDE interface disabled                   W10           pins 2 & 3
                                                              closed

     Monitor type select color                W11           pins 1 & 2
                                                              closed

      Monitor type select monochrome           W11           pins 2 & 3
                                                              closed

     Speaker select internal                  W12           pins 1 & 2
                                                              closed

      Speaker select external                  W12           pins 2 & 3
                                                              closed

     Factory configured - do not alter        W13             open

     Pipeline mode enabled                    W14           pins 1 & 2
                                                              closed

      Pipeline mode disabled                   W14           pins 2 & 3
                                                              closed

