Index-10
CHAPTER 17 KEY INTERRUPT FUNCTION ..................................................................................... 850
17.1 Functions of Key Interrupt ...................................................................................................... 850
17.2 Configuration of Key Interrupt ................................................................................................ 850
17.3 Register Controlling Key Interrupt ......................................................................................... 852
CHAPTER 18 STANDBY FUNCTION .................................................................................................. 853
18.1 Standby Function and Configuration ..................................................................................... 853
18.1.1 Standby function........................................................................................................................... 853
18.1.2 Registers controlling standby function .......................................................................................... 854
18.2 Standby Function Operation ................................................................................................... 857
18.2.1 HALT mode .................................................................................................................................. 857
18.2.2 STOP mode.................................................................................................................................. 862
18.2.3 SNOOZE mode ............................................................................................................................ 867
CHAPTER 19 RESET FUNCTION........................................................................................................ 869
19.1 Register for Confirming Reset Source ................................................................................... 879
CHAPTER 20 POWER-ON-RESET CIRCUIT ...................................................................................... 881
20.1 Functions of Power-on-reset Circuit ...................................................................................... 881
20.2 Configuration of Power-on-reset Circuit................................................................................ 882
20.3 Operation of Power-on-reset Circuit ...................................................................................... 882
20.4 Cautions for Power-on-reset Circuit....................................................................................... 885
CHAPTER 21 VOLTAGE DETECTOR .................................................................................................. 887
21.1 Functions of Voltage Detector ................................................................................................ 887
21.2 Configuration of Voltage Detector.......................................................................................... 888
21.3 Registers Controlling Voltage Detector ................................................................................. 888
21.4 Operation of Voltage Detector ................................................................................................ 893
21.4.1 When used as reset mode............................................................................................................ 893
21.4.2 When used as interrupt mode ...................................................................................................... 895
21.4.3 When used as interrupt and reset mode ...................................................................................... 897
21.5 Cautions for Voltage Detector................................................................................................. 900
CHAPTER 22 SAFETY FUNCTIONS ..................................................................................................... 902
22.1 Overview of Safety Functions ................................................................................................. 902
22.2 Registers Used by Safety Functions ...................................................................................... 903
22.3 Operation of Safety Functions ................................................................................................ 903
22.3.1 Flash memory CRC operation function (high-speed CRC)........................................................... 903
22.3.2 CRC operation function (general-purpose CRC) .......................................................................... 907