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User’s Manual U18432EJ5V0UD
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16.5.6 Holding DMA transfer pending by DWAITn...................................................................................650
16.5.7 Forced termination by software.....................................................................................................651
16.6 Cautions on Using DMA Controller ........................................................................................ 652
CHAPTER 17 INTERRUPT FUNCTIONS ............................................................................................ 655
17.1 Interrupt Function Types......................................................................................................... 655
17.2 Interrupt Sources and Configuration ..................................................................................... 655
17.3 Registers Controlling Interrupt Functions ............................................................................ 661
17.4 Interrupt Servicing Operations ............................................................................................... 671
17.4.1 Maskable interrupt acknowledgment.............................................................................................671
17.4.2 Software interrupt request acknowledgment .................................................................................673
17.4.3 Multiple interrupt servicing ............................................................................................................674
17.4.4 Interrupt request hold ....................................................................................................................677
CHAPTER 18 KEY INTERRUPT FUNCTION ..................................................................................... 678
18.1 Functions of Key Interrupt ...................................................................................................... 678
18.2 Configuration of Key Interrupt................................................................................................ 678
18.3 Register Controlling Key Interrupt ......................................................................................... 679
CHAPTER 19 STANDBY FUNCTION .................................................................................................. 680
19.1 Standby Function and Configuration..................................................................................... 680
19.1.1 Standby function ...........................................................................................................................680
19.1.2 Registers controlling standby function ..........................................................................................680
19.2 Standby Function Operation................................................................................................... 683
19.2.1 HALT mode...................................................................................................................................683
19.2.2 STOP mode ..................................................................................................................................688
CHAPTER 20 RESET FUNCTION ....................................................................................................... 695
20.1 Register for Confirming Reset Source................................................................................... 703
CHAPTER 21 POWER-ON-CLEAR CIRCUIT ..................................................................................... 704
21.1 Functions of Power-on-Clear Circuit ..................................................................................... 704
21.2 Configuration of Power-on-Clear Circuit ............................................................................... 705
21.3 Operation of Power-on-Clear Circuit...................................................................................... 705
21.4 Cautions for Power-on-Clear Circuit ...................................................................................... 708
CHAPTER 22 LOW-VOLTAGE DETECTOR ....................................................................................... 710
22.1 Functions of Low-Voltage Detector ....................................................................................... 710
22.2 Configuration of Low-Voltage Detector ................................................................................. 711
22.3 Registers Controlling Low-Voltage Detector ........................................................................ 711
22.4 Operation of Low-Voltage Detector........................................................................................ 716
22.4.1 When used as reset ......................................................................................................................717
22.4.2 When used as interrupt .................................................................................................................723
22.5 Cautions for Low-Voltage Detector ........................................................................................ 729