Electronic system and protection method for power management circuit

Abstract

An electronic system is provided. The electronic system includes a processor and a first power management circuit. The processor generates and outputs a first data frame. The first data frame includes at least one first guard bit and a first address. The first power management circuit includes a first register. The first power management circuit receives the first data frame and determines legitimacy of the first address according to the least one first guard bit. In response to that the first address is legal, the power management circuit transmits a first response to the processor and accesses a first region in the first register according to the first address.

Dependencies are inferred from the claim text.