Changeset 552


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Timestamp:
Feb 17, 2011, 1:35:54 PM (6 years ago)
Author:
sacerdot
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...

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1 edited

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  • Deliverables/D4.1/ITP-Paper/itp-2011.tex

    r551 r552  
    167167
    168168Processor RAM is divided into numerous segments, with the most prominent division being between internal and (optional) external memory.
    169 Internal memory, commonly provided on the die itself with fast access, is further divided into 128 bytes of internal RAM and numerous Special Function Registers (SFRs) which control the operation of the processor.
     169Internal memory, commonly provided on the die itself with fast access, is composed of 256 bytes, but, in direct addressing mode, half of them are overloaded with 128 bytes of memory mapped Special Function Registers (SFRs) which control the operation of the processor.
    170170Internal RAM (IRAM) is further divided into eight general purpose bit-addressable registers (R0--R7).
    171171These sit in the first eight bytes of IRAM, though can be programmatically `shifted up' as needed.
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