Data compression or decompressions during DMA transfer between a source and a destination by independently controlling the incrementing of a source and a destination address registers
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United States of America Patent
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May 7, 2002
Grant Date -
N/A
app pub date -
Jun 1, 1998
filing date -
Jun 1, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A microcontroller includes a direct memory access unit that compresses and decompresses data and transfers from one block of memory to another. Specifically, word size data can be read, one byte discarded, and stored as consecutive, byte size data. This can be used in conjunction with an extended read and extended write asynchronous serial port that stores status information along with data. Once the status information is processed, the status is stripped by performing the 'compressive' DMA.
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