Temperature Compensation - Intel Agilex User Manual

5. Intel Agilex Power Optimization Techniques and Features
UG-20215 | 2019.04.02
The following example shows how an external power management controller retrieves
values from the Intel Agilex device. Coefficients used in the
follows:
• m = 1
• b = 0
• R = 0
If the external power management controller retrieved a value of
equivalent to the following:
X = (1/1) x (0384h x 10

5.1.3. Temperature Compensation

Intel Agilex devices are able to compensate for performance degradation at colder
temperatures by raising the voltage. While raising the voltage increases the dynamic
power consumption, the increase in dynamic power consumption is countered by lower
leakage at cold temperatures, thus enabling total power consumption at cold
temperatures to still be lower than at hot temperatures.
The SmartVID feature supports this dynamic voltage adjustment. The SDM Power
Manager checks for temperature changes and updates the new VID value if the
temperature crosses the threshold point.
Note: The temperature compensation feature is only supported in the industrial device
grade.
Figure 14. Temperature Compensation for SmartVID for Intel Agilex Devices—
Preliminary
The SDM monitors the temperature, normally at every 100 ms, and adjusts the voltage by communicating with
an external power management system. Adjustment is made by the SDM after the sensor detects the
temperature setting is below 10 °C or above 20 °C.
SmartVID programmed value + 40 mV
Send Feedback
-0
- 0) = 900 mV = 0.90 V
Voltage (V)
SmartVID programmed value
0
VOUT_COMMAND
0384h
10 20
® ™
Intel Agilex Power Management User Guide
are as
, it is
Temperature (°C)
23