发明名称 |
Power supply monitor for detecting faults during scan testing |
摘要 |
Some embodiments of a power supply monitor include a measurement circuit to measure a voltage provided to the power supply monitor, a comparator to compare the voltage to a predetermined voltage threshold, and an interface to provide, during a scan test of a processing device including the power supply monitor, a fault signal in response to the voltage being below the voltage threshold. Some embodiments of a method include providing a first test pattern to one or more power supply monitors associated with one or more circuit blocks in the processing device and capturing a first result generated by the power supply monitor(s) based on the first test pattern. The first result indicates whether a voltage provided to the circuit block(s) is below a voltage threshold. |
申请公布号 |
US9194914(B2) |
申请公布日期 |
2015.11.24 |
申请号 |
US201313943405 |
申请日期 |
2013.07.16 |
申请人 |
Advanced Micro Devices, Inc. |
发明人 |
Kosonocky Stephen V.;Giles Grady |
分类号 |
G01R31/28;G01R31/3185 |
主分类号 |
G01R31/28 |
代理机构 |
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代理人 |
|
主权项 |
1. A power supply monitor, comprising:
a measurement circuit to measure a voltage provided to the power supply monitor; a comparator to compare the voltage to a predetermined voltage threshold; an interface to provide, during a scan test of a processing device including the power supply monitor, a fault signal in response to the voltage being below the voltage threshold; and a test interface for receiving a test pattern and providing test results in response to the test pattern, wherein the test pattern is used to configure the power supply monitor to measure the voltage after receiving a capture clock pulse generated by a test circuit. |
地址 |
Sunnyvale CA US |