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User’s Manual U19678EJ1V1UD
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16.5.3 UART consecutive reception + ACK transmission ........................................................................859
16.5.4 Holding DMA transfer pending by DWAITn ...................................................................................861
16.5.5 Forced termination by software .....................................................................................................862
16.6 Cautions on Using DMA Controller ........................................................................................ 864
CHAPTER 17 INTERRUPT FUNCTIONS ............................................................................................ 866
17.1 Interrupt Function Types ......................................................................................................... 866
17.2 Interrupt Sources and Configuration ..................................................................................... 866
17.3 Registers Controlling Interrupt Functions............................................................................. 873
17.4 Interrupt Servicing Operations ............................................................................................... 890
17.4.1 Maskable interrupt acknowledgment .............................................................................................890
17.4.2 Software interrupt request acknowledgment .................................................................................893
17.4.3 Multiple interrupt servicing.............................................................................................................893
17.4.4 Interrupt request hold ....................................................................................................................897
CHAPTER 18 STANDBY FUNCTION .................................................................................................. 895
18.1 Standby Function and Configuration ..................................................................................... 895
18.1.1 Standby function ...........................................................................................................................895
18.1.2 Registers controlling standby function...........................................................................................896
18.2 Standby Function Operation ................................................................................................... 900
18.2.1 HALT mode ...................................................................................................................................900
18.2.2 STOP mode ..................................................................................................................................906
CHAPTER 19 RESET FUNCTION........................................................................................................ 911
19.1 Register for Confirming Reset Source ................................................................................... 921
CHAPTER 20 POWER-ON-CLEAR CIRCUIT...................................................................................... 922
20.1 Functions of Power-on-Clear Circuit...................................................................................... 922
20.2 Configuration of Power-on-Clear Circuit ............................................................................... 923
20.3 Operation of Power-on-Clear Circuit ...................................................................................... 923
20.4 Cautions for Power-on-Clear Circuit ...................................................................................... 925
CHAPTER 21 LOW-VOLTAGE DETECTOR ....................................................................................... 927
21.1 Functions of Low-Voltage Detector........................................................................................ 927
21.2 Configuration of Low-Voltage Detector ................................................................................. 928
21.3 Registers Controlling Low-Voltage Detector......................................................................... 928
21.4 Operation of Low-Voltage Detector ........................................................................................ 932
21.4.1 When used as reset ......................................................................................................................932
21.4.2 When used as interrupt .................................................................................................................937