Patent ID: 8928393
Filing Date: 2015-01-06
Classification: G01K,G06F,H03K

Abstract:
1. A method, comprising: a temperature switch sensing a temperature and comparing the sensed temperature to a current temperature threshold, wherein the current temperature threshold is selected from multiple predetermined temperature thresholds as determined by a state of at least one temperature threshold select input to the temperature switch; the temperature switch causing an interrupt assertion on a temperature threshold interrupt line in response to the sensed temperature exceeding the temperature threshold; a logic device monitoring the temperature threshold interrupt line for an interrupt assertion; the logic device automatically incrementing an output to the at least one temperature threshold select input of the temperature switch in response to detecting an interrupt assertion on the temperature threshold interrupt line; a service processor counting a number of interrupt assertions detected on the temperature threshold interrupt line, wherein the service processor stores a list of the multiple predetermined temperature thresholds and identifies the current temperature threshold by the counted number of interrupt assertions; the service processor causing an interrupt assertion on the temperature threshold interrupt line for a duration exceeding a predetermined duration; the logic device resetting the temperature threshold select output to the temperature switch in response to detecting an interrupt assertion that exceeds the predetermined duration, wherein the temperature threshold select out is reset to a predetermined temperature threshold select value; and the service processor resetting the count of the number of interrupt assertions.