APPARATUS FOR AUTONOMOUS SECURITY AND FUNCTIONAL SAFETY CLOCK AND VOLTAGES

An apparatus is provided for autonomous security and functional safety (FUSA) of clock and voltages. The apparatus may include: a multiplexer having a first input communicatively coupled to a pin to receive a first clock external to a die, and a second input coupled to an output of a divider; an oscillator to provide a second clock; and a counter coupled to an output of the multiplexer and the oscillator, wherein the counter is to operate with the second clock and is to determine a frequency of the first clock. The apparatus may further include a voltage monitor circuitry for monitoring voltage(s) for FUSA, a reference generator for FUSA, a duty cycle monitor for FUSA, a frequency degradation monitor for FUSA, and a phase error degradation monitor for FUSA. 提供了一种用于时钟和电压的自主安全性和功能安全性(FUSA)的装置。该装置可以包括：多路复用器，具有第一输出和第二输出，第一输出通信地耦合到引脚以接收管芯外部的第一时钟，并且第二输入耦合到耦合至分频器的输出；振荡器，提供第二时钟；以及计数器，耦合到多路复用器和振荡器的输出，其中该计数器以第二时钟操作并用于确定第一时钟的频率。该装置还可以包括：用于监测FUSA的(一个或多个)电压的电压监测器电路、用于FUSA的基准生成器、用于FUSA的占空比监测器、用于FUSA的频率劣化监测器、以及用于FUSA的相位误差劣化