NEC 78K0 Series User Manual page 14

17.5.11 Extension code.........................................................................................................................434
17.5.12 Arbitration.................................................................................................................................435
17.5.13 Wakeup function.......................................................................................................................436
17.5.14 Communication reservation......................................................................................................437
17.5.15 Other cautions ..........................................................................................................................440
17.5.16 Communication operations.......................................................................................................442
17.5.17 Timing of I
17.6 Timing Charts ......................................................................................................................... 470
CHAPTER 18 MULTIPLIER/DIVIDER
µ
( PD78F0534, 78F0535, 78F0536, 78F0537, AND 78F0537D ONLY) .................... 477
18.1 Functions of Multiplier/Divider ............................................................................................. 477
18.2 Configuration of Multiplier/Divider ....................................................................................... 477
18.3 Register Controlling Multiplier/Divider ................................................................................ 481
18.4 Operations of Multiplier/Divider............................................................................................ 482
18.4.1 Multiplication operation.............................................................................................................482
18.4.2 Division operation.....................................................................................................................484
CHAPTER 19 INTERRUPT FUNCTIONS ............................................................................................ 486
19.1 Interrupt Function Types....................................................................................................... 486
19.2 Interrupt Sources and Configuration ................................................................................... 486
19.3 Registers Controlling Interrupt Functions .......................................................................... 491
19.4 Interrupt Servicing Operations ............................................................................................. 499
19.4.1 Maskable interrupt acknowledgement ......................................................................................499
19.4.2 Software interrupt request acknowledgement ..........................................................................501
19.4.3 Multiple interrupt servicing........................................................................................................502
19.4.4 Interrupt request hold ...............................................................................................................505
CHAPTER 20 KEY INTERRUPT FUNCTION ..................................................................................... 506
20.1 Functions of Key Interrupt .................................................................................................... 506
20.2 Configuration of Key Interrupt.............................................................................................. 506
20.3 Register Controlling Key Interrupt ....................................................................................... 507
CHAPTER 21 STANDBY FUNCTION .................................................................................................. 508
21.1 Standby Function and Configuration................................................................................... 508
21.1.1 Standby function.......................................................................................................................508
21.1.2 Registers controlling standby function......................................................................................508
21.2 Standby Function Operation................................................................................................. 511
21.2.1 HALT mode ..............................................................................................................................511
21.2.2 STOP mode .............................................................................................................................516
CHAPTER 22 RESET FUNCTION........................................................................................................ 521
22.1 Register for Confirming Reset Source................................................................................. 529
CHAPTER 23 POWER-ON-CLEAR CIRCUIT...................................................................................... 530
23.1 Functions of Power-on-Clear Circuit ................................................................................... 530
14
2
C interrupt request (INTIIC0) occurrence................................................................449
Preliminary User's Manual U17260EJ3V1UD