JAMECO ELECTRONIC COMPONENTS

JE1081

Card Type              Memory card
Maximum Onboard Memory 2MB DRAM
Data Bus               16-bit ISA
Card Size              Full-length, full-height card

[Image]

                        USER CONFIGURABLE SETTINGS

                 Function                    Label          Position

      Parity checking enabled                SW1/8             On

      Parity checking disabled               SW1/8            Off

  »   Factory configured - do not alter      SW2/7        Unidentified

  »   Factory configured - do not alter      SW2/8        Unidentified

      Speed 6MHz/8MHz                         JP1      Pins 1 & 2 closed

      Speed 10MHz/12Mhz                       JP1      Pins 2 & 3 closed

   KILOBYTES STARTING ADDRESS SELECTION

  Address    SW1/1      SW1/2      SW1/3

    0KB       Off        Off        Off

   125KB       On        Off        Off

   256KB      Off         On        Off

   384KB       On         On        Off

   512KB      Off        Off        On

   640KB       On        Off        On

   768KB      Off         On        On

   896KB       On         On        On

         MEGEBYTES STARTING ADDRESS SELECTION

  Address    SW1/4      SW1/5      SW1/6      SW1/7

    0MB       Off        Off        Off        Off

    1MB        On        Off        Off        Off

    2MB       Off         On        Off        Off

    3MB        On         On        Off        Off

    4MB       Off        Off        On         Off

    5MB        On        Off        On         Off

    6MB       Off         On        On         Off

    7MB        On         On        On         Off

    8MB       Off        Off        Off        On

    9MB        On        Off        Off        On

   10MB       Off         On        Off        On

   11MB        On         On        Off        On

   12MB       Off        Off        On         On

   13MB        On        Off        On         On

   14MB       Off         On        On         On

   15MB        On         On        On         On

                      BASE/EXTENDED MEMORY SELECTION

   Total        Base/extended         Possible        SW2/5       SW2/6
                                      expanded

   0.5Mb            0.5Mb              0.0Mb           Off         Off

   1.0Mb            0.5Mb              0.5Mb           Off         Off

   1.5Mb            0.5Mb              1.0Mb           Off         Off

   2.0Mb            0.5Mb              1.5Mb           Off         Off

   1.0Mb            1.0Mb              0.0Mb           Off         On

   1.5Mb            1.0Mb              0.5Mb           Off         On

   2.0Mb            1.0Mb              1.0Mb           Off         On

   1.5Mb            1.5Mb              0.0Mb           On          Off

   2.0Mb            1.5Mb              0.5Mb           On          Off

   2.0Mb            2.0Mb              0.0Mb           On          On

           EXPANDED MEMORY I/O PORT ADDRESS

  Address    SW2/1      SW2/2      SW2/3      SW2/4

   208h        On         On         On        On

   218h       Off         On         On        On

   258h       Off         On        Off        On

   268h        On        Off        Off        On

   2A8h        On        Off         On        Off

   2B8h       Off        Off         On        Off

                       MISCELLANEOUS TECHNICAL NOTES

  If extended memory is already in the system, the starting address of
  the JE1081 is figured by adding 1024 to the amount of the extended
  memory. Divide the starting address by 1024 to get the total Megabytes.
  The result will be used to figure the settings for S1/4 - S1/7. The
  remainder is used to select the settings of S1/1 - S1/3.