High performance transmission link and interconnect

Multiplex communications – Pathfinding or routing – Switching a message which includes an address header

Reexamination Certificate

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C370S395300, C370S419000

Reexamination Certificate

active

06952419

ABSTRACT:
Methods and components in an interconnect system for improving the performance of the system with respect to increasing bandwidth in a serial link, increasing the processing speed of a packet in a node, and improving the calibration of links in the system are described. In one aspect of the present invention, a method of encoding framing data in a packet such that less than the normal number of framing bits is required. For example, a flit, the data unit sent over a serial link in one clock cycle, can be 88 bits in length, and a packet can be made up of one, two, or four flits. If the packet is a one- flit packet, two framing bits are inserted into the packet. If the packet is two flits, four framing bits are inserted into the packet, and if it is a four-flit packet, eight framing bits are inserted. In this way, space in the packet for data is maximized and the total number of bits of the packet can be determined either after reading a first framing bit if the packet is one flit or after reading a second framing bit if the packet is two or four flits long.

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