Datasheet

19.4.1 Operation .................................................................................................................................657
19.4.2 Restore ....................................................................................................................................658
19.4.3 EP flag .....................................................................................................................................659
19.5 Exception Trap...................................................................................................................... 660
19.5.1 Illegal opcode definition............................................................................................................660
19.5.2 Debug trap ...............................................................................................................................662
19.6 External Interrupt Request Input Pins (NMI and INTP0 to INTP7) ................................... 664
19.6.1 Noise elimination......................................................................................................................664
19.6.2 Edge detection.........................................................................................................................664
19.7 Interrupt Acknowledge Time of CPU .................................................................................. 669
19.8 Periods in Which Interrupts Are Not Acknowledged by CPU.......................................... 670
19.9 Cautions ................................................................................................................................ 670
CHAPTER 20 KEY INTERRUPT FUNCTION ..................................................................................... 671
20.1 Function................................................................................................................................. 671
20.2 Register ................................................................................................................................. 672
20.3 Cautions ................................................................................................................................ 672
CHAPTER 21 STANDBY FUNCTION .................................................................................................. 673
21.1 Overview................................................................................................................................ 673
21.2 Registers ............................................................................................................................... 675
21.3 HALT Mode............................................................................................................................ 678
21.3.1 Setting and operation status ....................................................................................................678
21.3.2 Releasing HALT mode.............................................................................................................678
21.4 IDLE1 Mode ........................................................................................................................... 680
21.4.1 Setting and operation status ....................................................................................................680
21.4.2 Releasing IDLE1 mode ............................................................................................................680
21.5 IDLE2 Mode ........................................................................................................................... 682
21.5.1 Setting and operation status ....................................................................................................682
21.5.2 Releasing IDLE2 mode ............................................................................................................682
21.5.3 Securing setup time when releasing IDLE2 mode ...................................................................684
21.6 STOP Mode............................................................................................................................ 685
21.6.1 Setting and operation status ....................................................................................................685
21.6.2 Releasing STOP mode ............................................................................................................685
21.6.3 Securing oscillation stabilization time when releasing STOP mode .........................................688
21.7 Subclock Operation Mode ................................................................................................... 689
21.7.1 Setting and operation status ....................................................................................................689
21.7.2 Releasing subclock operation mode ........................................................................................689
21.8 Sub-IDLE Mode ..................................................................................................................... 691
21.8.1 Setting and operation status ....................................................................................................691
21.8.2 Releasing sub-IDLE mode .......................................................................................................691
CHAPTER 22 RESET FUNCTIONS ..................................................................................................... 693
22.1 Overview................................................................................................................................ 693
22.2 Registers to Check Reset Source....................................................................................... 694
22.3 Operation............................................................................................................................... 695
22.3.1 Reset operation via RESET pin ...............................................................................................695
22.3.2 Reset operation by watchdog timer 2.......................................................................................697
22.3.3 Reset operation by low-voltage detector..................................................................................699
22.3.4 Operation after reset release ...................................................................................................700