发明名称 |
Circuit and method for providing automatic adaptation to frequency offsets in high speed serial links |
摘要 |
Aspects of providing automatic adaptation to frequency offsets in high speed serial links are described. First signals for phase adjusts in a receiver link are adjusted by detecting trends in the first signals to generate second signals, the second signals improving a rate of compensation for the frequency offsets by the phase adjusts. An up/down counter is included for counting signals for phase adjustments by a clock-data-recovery loop of a serial receiver. An adder is coupled to the up/down counter and outputs accumulated data indicative of a trend in the phase adjustments. Combinatorial logic coupled to the adder adapts the signals based on the accumulated data.
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申请公布号 |
US2005195863(A1) |
申请公布日期 |
2005.09.08 |
申请号 |
US20040791175 |
申请日期 |
2004.03.02 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
CRANFORD HAYDEN C.JR.;NICHOLLS GARETH J.;MODARESS-RAZAVI BOBAK;NORMAN VERNON R.;SCHMATZ MARTIN L. |
分类号 |
H03L7/07;H03L7/081;H03L7/093;H04L27/00;(IPC1-7):H04J3/06 |
主分类号 |
H03L7/07 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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