The chip actively transitions between USB power modes to protect mobile host devices (like laptops and smartphones) from excessive battery drain: Full operational, maximum throughput mode.
Built-in AES-128/256 hardware decryption engine for secure storage Programmable status pins for Read/Write and Suspend states Clock Source Requires an external 25 MHz crystal oscillator 3. Power Management and Thermal Optimization rtl9210b datasheet 2021
The controller features an internal thermal sensor that reads junction temperatures continuously. Through the 2021 firmware specifications, developers can configure step-down performance parameters: The chip actively transitions between USB power modes