Hi Himanshu
thermal sensor is described on app notes :
AN5215 i.MX 6 Temperature Sensor Module
http://www.nxp.com/docs/en/application-note/AN5215.pdf
AN4579 i.MX 6 Series Thermal Management Guidelines
http://cache.nxp.com/docs/en/application-note/AN4579.pdf
Actual location of i.MX6 internal thermal sensor is not available,
one can consider that it measures Tj.
Best regards
igor
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