SPRUIU1C July 2020 – February 2024 DRA821U , DRA821U-Q1
VTM module provides temperature reading and interrupt/alert information for thermal management.
Figure 5-657 shows a high level view of modules required to implement AVS-Class0 and thermal management in the device, VTM included.
VTM controls the temperature monitors in the die. A single VTM can control up to 8 monitors via its registers. The VTM enables the sensors periodically to keep the reported data continually updated becuase the device sensors are not periodical. The temperature value coming back from the monitor is captured and reported by the VTM registers. The VTM keeps the sensors in reset state when not enabled to save power and reduce sensor usage to maximize the sensor life.
This device has 3 temperature monitors.
Temperature diode sensor is used to measure silicon junction temperature, for more information about temperature diode, see the device-specific Datasheet.