APPARAT, INC.

256K MEMORY BOARD (REV. C)

Card Type              Memory
Maximum Onboard Memory 256KB DRAM
I/O Options            N/A
Data Bus               8-bit ISA

[Image]

                            DRAM CONFIGURATION

     Size          Bank 0         Bank 1        Bank 2         Bank 3

     64KB       (9) 64K x 1        None          None           None

     128KB      (9) 64K x 1    (9) 64K x 1       None           None

     192KB      (9) 64K x 1    (9) 64K x 1    (9) 64K x 1       None

     256KB      (9) 64K x 1    (9) 64K x 1    (9) 64K x 1    (9) 64K x 1

          DRAM SWITCH CONFIGURATION

  Size     SWA/5    SWA/6    SWA/7    SWA/8

  64KB      On       Off      Off      Off

  128KB     On       On       Off      Off

  192KB     On       On       On       Off

  256KB     On       On       On       On

          STARTING MEMORY ADDRESS SELECTION

  Setting    SWA/1      SWA/2      SWA/3      SWA/4

    0KB       Off        Off        Off        Off

   64KB       Off        Off        Off        On

   128KB      Off        Off        On         Off

   192KB      Off        Off        On         On

   256KB      Off         On        Off        Off

   320KB      Off         On        Off        On

   384KB      Off         On        On         Off

   448KB      Off         On        On         On

   512KB       On        Off        Off        Off

   576KB       On        Off        Off        On

   640KB       On        Off        On         Off

   704KB       On        Off        On         On

   768KB       On         On        Off        Off

   832KB       On         On        Off        On

   896KB       On         On        On         Off

   960KB       On         On        On         On