Cross-coupled voltage and temperature monitoring in programmable integrated circuits

摘要

Method and apparatus for monitoring system operations in an integrated circuit. A method includes receiving a first power supply voltage from a first processing domain, comparing the first power supply voltage to a first reference voltage, receiving the second power supply voltage from the second processing domain, comparing the second power supply voltage to a second reference voltage, determining that the first power supply voltage exceeds the first reference voltage or that the second power supply voltage exceeds the second reference voltage, and transmitting one or more alarms corresponding to one or more of the first power supply voltage and the second power supply voltage in response to determining that the first power supply voltage exceeds the first reference voltage or that the second power supply voltage exceeds the second reference voltage. An integrated circuit and system monitor are also provided.

主权项

1. A method for monitoring a first power supply voltage providing power to a first processing domain and a second power supply voltage providing power to a second processing domain, the first processing domain including user-configurable electronic logic, the second processing domain including hard-wired electronic logic, the method comprising:
receiving, at a processing domain, the first power supply voltage; comparing, at the processing domain, the first power supply voltage to a first reference voltage; receiving, at the processing domain, the second power supply voltage; comparing, at the processing domain, the second power supply voltage to a second reference voltage; determining that the first power supply voltage exceeds the first reference voltage or that the second power supply voltage exceeds the second reference voltage; and transmitting one or more alarms corresponding to one or more of the first power supply voltage and the second power supply voltage in response to determining that the first power supply voltage exceeds the first reference voltage or that the second power supply voltage exceeds the second reference voltage, wherein the processing domain comprises either the first processing domain or the second processing domain.