Common System Interface (CSI) A point-to-point processor interconnect being developed by Intel to replace their processor front side bus interface. CSI is defined as a variable width, point to point, packet-based interface implemented as two uni-directional links with low-voltage differential signaling. A full width CSI link is physically configured with 20 bit lanes in each direction; these bit lanes are divided into four quadrants of 5 bit lanes, providing 12-16GB/s of bandwidth in each direction.
The Common System Interface is called the QuickPath Interconnect.
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IC Bus Descriptions, IC Manufacturers, and Processor Manufacturers
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