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User’s Manual U18854EJ2V0UD
17
CHAPTER 22 CLOCK MONITOR .........................................................................................................901
22.1
Functions ...............................................................................................................................901
22.2
Configuration .........................................................................................................................901
22.3
Register ..................................................................................................................................902
22.4
Operation................................................................................................................................903
CHAPTER 23 POWER-ON CLEAR CIRCUIT .....................................................................................906
23.1
Function .................................................................................................................................906
23.2
Configuration .........................................................................................................................906
23.3
Operation................................................................................................................................907
CHAPTER 24 LOW-VOLTAGE DETECTOR ........................................................................................908
24.1
Functions ...............................................................................................................................908
24.2
Configuration .........................................................................................................................908
24.3
Registers ................................................................................................................................909
24.4
Operation................................................................................................................................911
24.4.1
To use for internal reset signal ................................................................................................ 911
24.4.2
To use for interrupt .................................................................................................................. 913
24.5
RAM Retention Voltage Detection Operation.....................................................................914
24.6
Emulation Function...............................................................................................................915
CHAPTER 25 REGULATOR ..................................................................................................................916
25.1
Overview.................................................................................................................................916
25.2
Operation................................................................................................................................918
CHAPTER 26 FLASH MEMORY...........................................................................................................919
26.1
Features..................................................................................................................................919
26.2
Memory Configuration ..........................................................................................................920
26.3
Functional Outline.................................................................................................................921
26.4
Rewriting by Dedicated Flash Programmer .......................................................................924
26.4.1
Programming environment ...................................................................................................... 924
26.4.2
Communication mode.............................................................................................................. 925
26.4.3
Flash memory control .............................................................................................................. 939
26.4.4
Selection of communication mode........................................................................................... 940
26.4.5
Communication commands ..................................................................................................... 941
26.4.6
Pin connection ......................................................................................................................... 942
26.5
Rewriting by Self Programming...........................................................................................946
26.5.1
Overview ................................................................................................................................. 946
26.5.2
Features .................................................................................................................................. 947
26.5.3
Standard self programming flow .............................................................................................. 949
26.5.4
Flash functions ........................................................................................................................ 950
26.5.5
Pin processing ......................................................................................................................... 950
26.5.6
Internal resources used ........................................................................................................... 951
CHAPTER 27 OPTION BYTE FUNCTION...........................................................................................952
CHAPTER 28 ON-CHIP DEBUG FUNCTION......................................................................................954
28.1
Debugging with DCU.............................................................................................................955