Advanced bandwidth allocation in PCI bus architecture
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United States of America Patent
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Jun 12, 2007
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app pub date -
Jan 30, 2004
filing date -
Jan 30, 2004
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Abstract
A bus arbitration system and method allocates total bus bandwidth between latency sensitive and latency insensitive interfaces by utilizing windows to divide the total bandwidth into latency sensitive and latency insensitive portions. Each interface is initially allocated top-up numbers of latency sensitive and latency insensitive tokens to proportionally allocate bus accesses between the interfaces according to their requirements. For an interface having access to the bus, the number of tokens is decremented for each successful bus transfer.
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