Invention Grant
US09558145B2 Method, apparatus and system for measuring latency in a physical unit of a circuit 有权
用于测量电路物理单元中的延迟的方法,装置和系统

Method, apparatus and system for measuring latency in a physical unit of a circuit
Abstract:
In an embodiment, an apparatus includes a counter to count between a start value and an end value according to a local clock signal, a first register to store an output of the counter, a mirror elastic buffer to store samples of the counter output received from the first register, where the mirror elastic buffer is to mirror an elastic buffer of a receiver circuit, and a resolution logic to receive a counter output sample from the mirror elastic buffer and a current counter value output from the counter, and to determine a transit latency for a data element to traverse the receiver circuit based at least in part on the counter output sample and the current counter value. Other embodiments are described and claimed.
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