NEC 78K0 User Manual page 17

18.4.1 Multiplication operation ...............................................................................................................424
18.4.2 Division operation........................................................................................................................426
CHAPTER 19 INTERRUPT FUNCTIONS ............................................................................................ 428
19.1 Interrupt Function Types ....................................................................................................... 428
19.2 Interrupt Sources and Configuration.................................................................................... 428
19.3 Registers Controlling Interrupt Functions ........................................................................... 432
19.4 Interrupt Servicing Operations.............................................................................................. 439
19.4.1 Maskable interrupt request acknowledgement ............................................................................439
19.4.2 Software interrupt request acknowledgment ...............................................................................441
19.4.3 Multiple interrupt servicing ..........................................................................................................442
19.4.4 Interrupt request hold ..................................................................................................................445
CHAPTER 20 KEY INTERRUPT FUNCTION ..................................................................................... 446
20.1 Functions of Key Interrupt..................................................................................................... 446
20.2 Configuration of Key Interrupt .............................................................................................. 446
20.3 Register Controlling Key Interrupt........................................................................................ 447
CHAPTER 21 STANDBY FUNCTION.................................................................................................. 448
21.1 Standby Function and Configuration ................................................................................... 448
21.1.1 Standby function .........................................................................................................................448
21.1.2 Registers controlling standby function.........................................................................................450
21.2 Standby Function Operation ................................................................................................. 452
21.2.1 HALT mode .................................................................................................................................452
21.2.2 STOP mode ................................................................................................................................457
CHAPTER 22 RESET FUNCTION ....................................................................................................... 461
22.1 Register for Confirming Reset Source ................................................................................. 468
CHAPTER 23 CLOCK MONITOR ........................................................................................................ 469
23.1 Functions of Clock Monitor ................................................................................................... 469
23.2 Configuration of Clock Monitor............................................................................................. 469
23.3 Registers Controlling Clock Monitor .................................................................................... 470
23.4 Operation of Clock Monitor ................................................................................................... 471
CHAPTER 24 POWER-ON-CLEAR CIRCUIT ..................................................................................... 476
24.1 Functions of Power-on-Clear Circuit .................................................................................... 476
24.2 Configuration of Power-on-Clear Circuit ............................................................................. 477
24.3 Operation of Power-on-Clear Circuit .................................................................................... 477
24.4 Cautions for Power-on-Clear Circuit .................................................................................... 478
CHAPTER 25 LOW-VOLTAGE DETECTOR ....................................................................................... 480
25.1 Functions of Low-Voltage Detector ...................................................................................... 480
25.2 Configuration of Low-Voltage Detector................................................................................ 480
25.3 Registers Controlling Low-Voltage Detector....................................................................... 481
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User's Manual U15947EJ2V0UD
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