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User’s Manual U18417EJ4V0UD
15
CHAPTER 19 STANDBY FUNCTION .................................................................................................. 679
19.1 Standby Function and Configuration .............................................................................................. 679
19.1.1 Standby function ...........................................................................................................................679
19.1.2 Registers controlling standby function ..........................................................................................679
19.2 Standby Function Operation............................................................................................................. 682
19.2.1 HALT mode...................................................................................................................................682
19.2.2 STOP mode ..................................................................................................................................687
CHAPTER 20 RESET FUNCTION ....................................................................................................... 694
20.1 Register for Confirming Reset Source ............................................................................................ 702
CHAPTER 21 POWER-ON-CLEAR CIRCUIT ..................................................................................... 703
21.1 Functions of Power-on-Clear Circuit ............................................................................................... 703
21.2 Configuration of Power-on-Clear Circuit......................................................................................... 704
21.3 Operation of Power-on-Clear Circuit ............................................................................................... 704
21.4 Cautions for Power-on-Clear Circuit................................................................................................ 707
CHAPTER 22 LOW-VOLTAGE DETECTOR ....................................................................................... 709
22.1 Functions of Low-Voltage Detector ................................................................................................. 709
22.2 Configuration of Low-Voltage Detector........................................................................................... 710
22.3 Registers Controlling Low-Voltage Detector.................................................................................. 710
22.4 Operation of Low-Voltage Detector ................................................................................................. 715
22.4.1 When used as reset ......................................................................................................................716
22.4.2 When used as interrupt .................................................................................................................722
22.5 Cautions for Low-Voltage Detector.................................................................................................. 728
CHAPTER 23 REGULATOR ................................................................................................................. 732
23.1 Regulator Overview............................................................................................................................ 732
23.2 Registers Controlling Regulator....................................................................................................... 732
CHAPTER 24 OPTION BYTE............................................................................................................... 734
24.1 Functions of Option Bytes ................................................................................................................ 734
24.1.1 User option byte (000C0H to 000C2H/010C0H to 010C2H) .........................................................734
24.1.2 On-chip debug option byte (000C3H/ 010C3H) ............................................................................735
24.2 Format of User Option Byte .............................................................................................................. 735
24.3 Format of On-chip Debug Option Byte............................................................................................ 737
24.4 Setting of Option Byte........................................................................................................................ 738
CHAPTER 25 FLASH MEMORY.......................................................................................................... 739
25.1 Writing with Flash Memory Programmer ........................................................................................ 739
25.2 Programming Environment............................................................................................................... 742
25.3 Communication Mode........................................................................................................................ 742
25.4 Connection of Pins on Board ........................................................................................................... 743
25.4.1 FLMD0 pin ....................................................................................................................................743
25.4.2 TOOL0 pin ....................................................................................................................................744