Register write detection and state monitoring mechanism implementation method, device and system

The invention relates to a register write detection and state monitoring mechanism implementation method, device and system. According to the method, a global CRC register protection mechanism is added into a register module, safety-related registers in the module are protected, and the global CRC register protection mechanism comprises a register write detection mechanism and a state monitoring mechanism; the register write detection mechanism and the state monitoring mechanism run independently and call the write detection and CRC result register in different time periods. In the register write detection process, whether a numerical value is correctly written into a register or not can be detected without delay, in the state monitoring mechanism process, only one CRC calculation module and one write detection and CRC result register are used for forming monitoring protection on a plurality of functional registers, and compared with a mode of performing CRC on each register, the circuit is simple to implemen