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TMS320DM8168: Help to confirm the accuracy of AVS for DM8168

Part Number: TMS320DM8168
Help confirm whether the following settings to meet DM8168,
1.The model number is TMS320DM8168CCYG2
2.The maximum minimum range of AVS is 0.89V~1.07V,AVS Set the step range 0.02V,
And Is the AVS constantly adjusting?
  • Hi Sean,

    Adaptive Voltage Scaling (AVS) is a power-management technique based in SmartReflex that is used for automatic control of the operating voltages of the device to reduce active power consumption. Based on the silicon process and temperature, the SmartReflex modules guide software in adjusting the Core Logic Voltage Domain supply voltages within the voltage range. The Vmin to Vmax voltage range is split into
    equidistant steps (8, 16, or 32 are recommended). The advantage of using more steps is that it enables the system to more closely approach the optimum operating voltage and results in a flatter leakage power curve.

    The device supports a class of SmartReflex technologies that enables dynamic voltage adjustments by software. The SmartReflex module provides an interrupt to help the CPU adjust the supply voltage. The SmartReflex module also provides a parameter that can be sampled to know the magnitude and direction of the voltage adjustment required. When an interrupt reaches the CPU, software will service the interrupt
    and adjust the voltage supply accordingly.

    The Power Management (PM) driver basically operates as a performance monitor where environmental changes may require adjustment of the voltage to maintain device performance.

    Regards,
    Pavel