Data processing system with temperature monitoring for security

摘要

A processing system includes a processor and a temperature security module coupled to provide a temperature tamper signal to the processor. The temperature security module includes a shelf mode trim value, an operating mode trim value, and a programmable temperature trim value. One of the programmable temperature trim value, the shelf mode trim value, and the operating mode trim value, is used based on a deployment mode of the processing system to set a temperature monitor trim value.

主权项

1. A processing system comprising:
a processor; and a temperature security module coupled to provide a temperature tamper signal to the processor, wherein the temperature security module includes:
a shelf mode trim value;an operating mode trim value; anda programmable temperature trim value,wherein one of a group consisting of: the programmable temperature trim value, the shelf mode trim value, and the operating mode trim value, is used based on a deployment mode of the processing system to set a temperature monitor trim value, wherein the temperature security module is configured to use one of the programmable trim value or the shelf mode trim value to set the temperature monitor trim value during a first deployment mode in which a battery power supply is provided to the temperature security module, operating power is not provided to the processing system, and a shelf mode indicator indicates shelf mode, wherein the temperature security module further includes
a temperature monitor configured to provide the temperature tamper signal when a detected temperature of the processing system is not within a temperature range indicated by the selected one of the programmable temperature trim value, the shelf mode trim value, and the operating mode trim value.