ROM and RAM



Design versions of the ROM and RAM Modules

  • #41 - Single 40 pin connector, 64kb ROM switchable in 8 x 8kb banks, 32kb RAM
  • #43 - Single 40 pin connector, 64kb ROM switchable in 8 x 8kb banks, 32kb RAM
  • #44 - Single 40 pin connector, 64kb ROM switchable in 2 x 32kb banks, 32kb RAM
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#44 ROM and RAM module

  • 64kb ROM (27C512)
  • 32kb RAM (62256P)
  • Switch between 2 x 32kb ROM Banks
  • 1: 32k Basic
  • 2: SC Monitor
  • 5 x 10cm
ORDER: easyEDA website

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The recomended ROM image consist of 32kb Basic and SCMonitor, selection is performed by switching between bank 1 and 2.
The 32kb basic is copyright Microsoft and Grant Searle. Grant's Homepage
The SCMonitor is copyright Steve Cousins. A detailed user manual can be found here. Small Computer Central
The ROM image would be given the code "R0009000" in RC2014 terminology. ROM LABELS