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documentations:expansions:ram [2014/03/23 16:25] – created pulkomandydocumentations:expansions:ram [2015/02/28 18:08] (current) – external edit 127.0.0.1
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 ===== History ===== ===== History =====
  
-This expansion was developped for use in the Nanoréseau system. It was used to load software from the master computer through the Nanoréseau network, then write locked as the software was being used. This has a few incidences on the hardware design:+This expansion was developed for use in the Nanoréseau system. It was used to load software from the master computer through the Nanoréseau network, then write locked as the software was being used. This has a few incidences on the hardware design:
   * The RAM expansion plugs in the cartridge port (leaving the expansion port free for the Nanoréseau controller), and uses the cartridge space in the memory map,   * The RAM expansion plugs in the cartridge port (leaving the expansion port free for the Nanoréseau controller), and uses the cartridge space in the memory map,
   * It can be write protected,   * It can be write protected,
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 The RAM is mapped at addresses B000-EFFF, just like a regular cartridge. The RAM is mapped at addresses B000-EFFF, just like a regular cartridge.
  
-The RAM expansion is configured using a single register at attress A7CB (write only).+The RAM expansion is configured using a single register at address A7CB (write only).
   * bits 0-1: RAM page number   * bits 0-1: RAM page number
   * bit 2: enable RAM expansion (when disabled, the BASIC is mapped)   * bit 2: enable RAM expansion (when disabled, the BASIC is mapped)
documentations/expansions/ram.1395588343.txt.gz · Last modified: 2015/02/28 18:08 (external edit)
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