发明名称 |
DATA RETENTION LATCH PROVISION WITHIN INTEGRATED CIRCUITS |
摘要 |
<p>There is provided an integrated circuit comprising: a plurality of processing stages, at least one of said processing stages having processing logic operable to perform a processing operation upon at least one processing stage input value to generate a processing logic output signal; and a low power mode controller operable to control said integrated circuit to switch between an operational mode in which said integrated circuit performs said processing operations and a standby mode in which said integrated circuit retains signals values but does not perform said processing operations; wherein said at least one of said processing stages has: a non-delayed latch operable to capture a non-delayed value of said processing logic output signal at a non-delayed capture time; and a delayed latch operable during said operational mode to capture a delayed value of said processing logic output signal at a delayed capture time, said delayed capture time being later than said non- delayed capture time, said non-delayed value being passed as a processing stage input value to a following processing stage before said delayed capture time and a difference between said non-delayed value and said delayed value being indicative of said, processing operation not being complete at said non-delayed capture time; said delayed latch is operable during said standby mode to retain said delayed value whilst said non-delayed latch is powered down and loses said non-delayed value; and said delayed latch is formed to have a lower power consumption.</p> |
申请公布号 |
EP1604265(B1) |
申请公布日期 |
2006.06.14 |
申请号 |
EP20040721233 |
申请日期 |
2004.03.17 |
申请人 |
ARM LIMITED;UNIVERSITY OF MICHIGAN |
发明人 |
AUSTIN, TODD, MICHAEL;BLAAUW, DAVID, THEODORE;MUDGE, TREVOR, NIGEL;FLAUTNER, KRISZTIAN |
分类号 |
G06F1/32;G06F9/38;G06F11/00;G06F11/16 |
主分类号 |
G06F1/32 |
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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