发明名称 |
NETWORK OF TIGHTLY COUPLED PERFORMANCE MONITORS FOR DETERMINING THE MAXIMUM FREQUENCY OF OPERATION OF A SEMICONDUCTOR IC |
摘要 |
A circuit interconnection structure for synchronizing a network of oscillators placed on a semiconductor substrate. One such structure comprises a first synchronizing circuit electrically coupled to a second synchronizing circuit through tunable delay circuits. Also disclosed are methods to tune oscillators placed in different regions of a circuit having multiple clock domains by estimating the relative slack of a first group of signals within the circuit with regard to the period of a first clock domain, and estimating the relative slack of the second group of signals within the circuit with regard to the period of second clock domain, wherein the estimating is performed at process and operational corners that cover the variability of the circuit at different speed conditions, then calculating tuning values for the oscillator delays for each region such that the oscillator delay slack matches the worst relative slack of the signals of the same region. |
申请公布号 |
US2012013408(A1) |
申请公布日期 |
2012.01.19 |
申请号 |
US201113181362 |
申请日期 |
2011.07.12 |
申请人 |
CORTADELLA JORDI;LAVAGNO LUCIANO;TUNCER EMRE |
发明人 |
CORTADELLA JORDI;LAVAGNO LUCIANO;TUNCER EMRE |
分类号 |
H03L7/00;G06F17/50;H03L7/06 |
主分类号 |
H03L7/00 |
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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