【摘要】 利用集成电路ＴＬ７７０５和７４１２３相结合，并配以适当的软件，对单片微机系统的程序和电源进行监视，以实现系统失控防护以及自动上电、掉电复位和掉电操作的控制，由于它采取软硬结合的办法，并在硬件设计上具有独特的措施，使得系统的可靠性大大提高。更多还原

【Abstract】 This paperdetails a measure that comhn IC7705 and74l23 withsuitable sonware for su-pervising the porgrame and power of microprocessor system and achieving the follow controlfuntion。IT is about proteotion from runaway，automatic power一on and power一off reset，power一offdisposition ofdate，With the unite measure of software and hardware，and the orig-inal design of circuit，the authmticity of the system is greatly impoved。更多还原