Introduction

Each PolarFire® device is equipped with a Temperature and Voltage Sensor (TVS). TVS reports die temperature and voltage of device supply rails in digital form to the FPGA fabric.

TVS is implemented using a 4-channel ADC, and the channel information is given as follows:

  • Channel 0—1V voltage supply
  • Channel 1—1.8V voltage supply
  • Channel 2—2.5V voltage supply
  • Channel 3—Die temperature

The TVS outputs a 16-bit encoded value that represents voltage or temperature and the corresponding channel number. The temperature and voltage information is translated into standard temperature and voltage values. For more information, see PolarFire Family Security User Guide .