
NEWTON NET TECHNOLOGY, INC.

NE3468B

Processor             80386DX/CX486DLC/80486SX/80487SX/80486DX/80486DX2
Processor Speed       20/25/33/40/50(internal)/50/66(internal)
Chip Set              FOREX
Max. Onboard DRAM     32MB
SRAM Cache            64/128/256KB
BIOS                  AMI
Dimensions            220.2mm x 250.2mm
I/O Options           32-bit local bus card slot
NPU Options           80387

[Image]

                                CONNECTIONS

  Purpose                   Location    Purpose                  Location

  External battery            JP2       Turbo switch              JP15

  Reset switch                JP8       Turbo LED                 JP16

  Power LED & keylock         JP9       32-bit local bus card      S1

  Speaker                     JP10

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Factory configured - do not alter        JP5            closed

     Factory configured - do not alter        JP6             open

              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

      5MB         (4) 256K x 9    (4) 1M x 9

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

      16MB        (4) 4M x 9         NONE

      20MB        (4) 1M x 9      (4) 4M x 9

      32MB        (4) 4M x 9      (4) 4M x 9

                          CPU SPEED CONFIGURATION

    Speed         JP7A            JP7B           JP7C           JP7D

    20MHz       pins 2 & 3     pins 1 & 2     pins 1 & 2      pins 2 & 3
                 closed          closed         closed         closed

    25MHz       pins 1 & 2     pins 2 & 3     pins 1 & 2      pins 2 & 3
                 closed          closed         closed         closed

    33MHz       pins 1 & 2     pins 1 & 2     pins 2 & 3      pins 2 & 3
                 closed          closed         closed         closed

    40MHz       pins 2 & 3     pins 2 & 3     pins 1 & 2      pins 2 & 3
                 closed          closed         closed         closed

    50MHz       pins 2 & 3     pins 1 & 2     pins 2 & 3      pins 2 & 3
                 closed          closed         closed         closed

    66MHz       pins 1 & 2     pins 1 & 2     pins 2 & 3      pins 1 & 2
                 closed          closed         closed         closed

    80MHz       pins 2 & 3     pins 2 & 3     pins 1 & 2      pins 1 & 2
                 closed          closed         closed         closed

                          CPU TYPE CONFIGURATION

      CPU          JP12        JP13       JP30        W1B        W1K-C

    80486DX2      pins 1 &   pins 1 &    pins 1 &   pins 1 &   pins 1 & 2
                     2          2           2          2

    80486DX       pins 1 &   pins 1 &    pins 1 &   pins 1 &   pins 1 & 2
                     2          2           2          2

    80487SX       pins 1 &   pins 1 &    pins 2 &   pins 1 &   pins 1 & 2
                     2          2           3          2

    80486SX       pins 2 &   pins 2 &    pins 2 &   pins 1 &   pins 1 & 2
                     3          3           3          2

    CX486DLC        N/A        N/A         N/A      pins 1 &   pins 2 & 3
                                                       2

    80386DX         N/A        N/A         N/A      pins 2 &   pins 2 & 3
                                                       3

  Note:Pins designated should be in the closed position.

                            SRAM CONFIGURATION

   Size       Cache      Location       TAG0      TAG1      JP8A,B,C, E &
              SRAM                                               F

   64KB     (8) 8K x   Banks 0 & 1    (1) 8K x    NONE       pins 1 & 2
               8                         8                     closed

  128KB     (4) 32K x     Bank 0      (1) 8K x    NONE       pins 1 & 2
               8                         8                     closed

  256KB     (8) 32K x  Banks 0 & 1    (1) 8K x    (1) 8K     pins 2 & 3
               8                         8         x 8         closed

