
L & K MICRO SUPPLY, INC.

486 CONTAQ CACHE

Processor         80486SX/80487SX/80486DX
Processor Speed   16/20/25/33/40/50MHz
Chip Set          CONTAQ
Max. Onboard DRAM 32MB
Cache             64/256KB
BIOS              AMI
Dimensions        330mm x 218mm
I/O Options       None
NPU Options       4167

[Image]

                                CONNECTIONS

  Purpose                   Location    Purpose                  Location

  Speaker                      J3       Turbo switch              JP18

  External battery             J7       Turbo LED                 JP20

  Power LED & keylock          J8       Reset switch              JP21

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     NPU read cycle select 0 wait             JP5           pins 1 & 2
      states                                                  closed

      NPU read cycle select 1 wait             JP5           pins 2 & 3
      state                                                   closed

     CMOS memory normal operation            JP24           pins 2 & 3
                                                              closed

      CMOS memory clear                       JP24           pins 1 & 2
                                                              closed

     Monitor type select monochrome          JP25           pins 1 & 2
                                                              closed

      Monitor type select color               JP25           pins 2 & 3
                                                              closed

              DRAM CONFIGURATION

      Size          Bank 0          Bank 3

      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

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

                            CACHE CONFIGURATION

   Size     Bank 0   Bank 1    TAG      Location     Dirty     Location
                                                      Bit

   64KB     (4) 8K   (4) 8K     (2)    U14 & U15    (1) 16K       U16
             x 8      x 8      16K x                  x 4
                                4

   64KB     (4) 8K   (4) 8K     (2)    U14 & U15    (1) 16K       U18
             x 8      x 8      16K x                  x 1
                                4

   64KB     (4) 8K   (4) 8K   (1) 8K      NU1       (1) 16K       U16
             x 8      x 8      x 8                    x 4

   64KB     (4) 8K   (4) 8K   (1) 8K      NU1       (1) 16K       U18
             x 8      x 8      x 8                    x 1

  256KB      (4)       (4)      (2)    U14 & U15    (1) 16K       U16
            32K x     32K x    16K x                  x 4
              8        8        4

  256KB      (4)       (4)      (2)    U14 & U15    (1) 16K       U18
            32K x     32K x    16K x                  x 1
              8        8        4

  256KB      (4)       (4)      (1)       NU1       (1) 16K       U16
            32K x     32K x    32K x                  x 4
              8        8        8

  256KB      (4)       (4)      (1)       NU1       (1) 16K       U18
            32K x     32K x    32K x                  x 1
              8        8        8

                        CACHE JUMPER CONFIGURATION

    Size           JP7            JP8            JP9            JP10

    64KB        pins 1 & 2     pins 1 & 2     pins 1 & 2      pins 1 & 2
                 closed          closed         closed         closed

    256KB       pins 2 & 3     pins 2 & 3     pins 2 & 3      pins 2 & 3
                 closed          closed         closed         closed

                          CPU TYPE CONFIGURATION

     Type           JP1            JP2            JP3            JP4

    80486SX      pins 2 & 3     pins 2 & 3       Open         pins 1 & 3
                   closed         closed                        closed

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

    80486DX      pins 1 & 2     pins 1 & 2     pins 2 & 3     pins 1 & 2
                   closed         closed        closed          closed

                          CPU SPEED CONFIGURATION

    Speed       Crystal at        JP6            JP11           JP12
                  OSC1

    16MHz         32MHz        pins 5 & 6     pins 2 & 3      pins 2 & 3
                                 closed         closed         closed

    20MHz         40MHz        pins 5 & 6     pins 2 & 3      pins 2 & 3
                                 closed         closed         closed

    25MHz         25MHz        pins 3 & 4     pins 1 & 2      pins 2 & 3
                                 closed         closed         closed

    33MHz         33MHz        pins 3 & 4     pins 2 & 3      pins 1 & 2
                                 closed         closed         closed

    40MHz         40MHz        pins 3 & 4     pins 2 & 3      pins 2 & 3
                                 closed         closed         closed

    50MHz         50MHz        pins 3 & 4     pins 1 & 2      pins 1 & 2
                                 closed         closed         closed

