27.2.5 Compare Match Constant Register (CMCOR) ......................................................................... 757
27.3 Operation ........................................................................................................................................... 758
27.3.1 Periodic Count Operation ......................................................................................................... 758
27.3.2 CMCNT Count Timing ............................................................................................................ 758
27.4 Interrupts ............................................................................................................................................ 759
27.4.1 Interrupt Sources ....................................................................................................................... 759
27.4.2 Timing of Compare Match Interrupt Generation ..................................................................... 759
27.5 Link Operations by ELC .................................................................................................................... 760
27.5.1 Event Signal Output to ELC ..................................................................................................... 760
27.5.2 CMT Operation When Receiving an Event Signal from ELC ................................................. 760
27.5.3 Notes on Operating CMT According to an Event Signal from ELC ........................................ 760
27.6 Usage Notes ....................................................................................................................................... 761
27.6.1 Setting the Module Stop Function ............................................................................................ 761
27.6.2 Conflict between CMCNT Counter Writing and Compare Match ........................................... 761
27.6.3 Conflict between CMCNT Counter Writing and Incrementing ............................................... 761
28. Realtime Clock (RTCe) ................................................................................................................ 762
28.1 Overview ........................................................................................................................................... 762
28.2 Register Descriptions ......................................................................................................................... 764
28.2.1 64-Hz Counter (R64CNT) ........................................................................................................ 764
28.2.2 Second Counter (RSECCNT)/Binary Counter 0 (BCNT0) ...................................................... 765
28.2.3 Minute Counter (RMINCNT)/Binary Counter 1 (BCNT1) ..................................................... 766
28.2.4 Hour Counter (RHRCNT)/Binary Counter 2 (BCNT2) ........................................................... 767
28.2.5 Day-of-Week Counter (RWKCNT)/Binary Counter 3 (BCNT3) ............................................ 768
28.2.6 Date Counter (RDAYCNT) ...................................................................................................... 769
28.2.7 Month Counter (RMONCNT) .................................................................................................. 770
28.2.8 Year Counter (RYRCNT) ......................................................................................................... 771
28.2.9 Second Alarm Register (RSECAR)/Binary Counter 0 Alarm Register (BCNT0AR) ............. 772
28.2.10 Minute Alarm Register (RMINAR)/Binary Counter 1 Alarm Register (BCNT1AR) ............. 773
28.2.11 Hour Alarm Register (RHRAR)/Binary Counter 2 Alarm Register (BCNT2AR) ................... 774
28.2.12 Day-of-Week Alarm Register (RWKAR)/Binary Counter 3 Alarm Register (BCNT3AR) .... 775
28.2.13 Date Alarm Register (RDAYAR)/Binary Counter 0 Alarm Enable Register (BCNT0AER) .. 776
28.2.14 Month Alarm Register (RMONAR)/Binary Counter 1 Alarm Enable Register (BCNT1AER) 777
28.2.15 Year Alarm Register (RYRAR)/Binary Counter 2 Alarm Enable Register (BCNT2AER)
..... 778
28.2.16 Year Alarm Enable Register (RYRAREN)/Binary Counter 3 Alarm Enable Register
(BCNT3AER) ........................................................................................................................... 779
28.2.17 RTC Control Register 1 (RCR1) .............................................................................................. 780
28.2.18 RTC Control Register 2 (RCR2) .............................................................................................. 781
28.2.19 RTC Control Register 3 (RCR3) .............................................................................................. 783
28.2.19.1 Notes on using a low CL crystal unit .............................................................................. 783
28.2.20 Time Error Adjustment Register (RADJ) ................................................................................. 784
28.2.21 Time Capture Control Register n (RTCCRn) (n = 0, 1) ........................................................... 785
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