non-volatility
1.At the same time the clock chip PCF8563 and serial EEPROM chip CSI24C01 with Reset and WDT circuit of I2C bus are used hi the system. They have not only provided the non- volatility data storage area, the supervision ability of power supply and MCU and the RTC, and its I2C bus structure has been simplified the circuit design.
2.At 2003, Robert F. Engle and Clive WJ. Granger received the Nobel Prize, because their Cointegration theory had solved two difficult problems, the Time-Varying Volatility and Non-stationary in the time series analysis field.
