
Page xx of xxxii
R01UH0025EJ0300 Rev. 3.00
Sep 24, 2010
15.3.1
64-Hz Counter (R64CNT) ................................................................................ 646
15.3.2
Second Counter (RSECCNT) ........................................................................... 647
15.3.3
Minute Counter (RMINCNT) ........................................................................... 648
15.3.4
Hour Counter (RHRCNT)................................................................................. 649
15.3.5
Day of Week Counter (RWKCNT) .................................................................. 650
15.3.6
Date Counter (RDAYCNT) .............................................................................. 651
15.3.7
Month Counter (RMONCNT) .......................................................................... 652
15.3.8
Year Counter (RYRCNT) ................................................................................. 653
15.3.9
Second Alarm Register (RSECAR) .................................................................. 654
15.3.10
Minute Alarm Register (RMINAR) .................................................................. 655
15.3.11
Hour Alarm Register (RHRAR) ....................................................................... 656
15.3.12
Day of Week Alarm Register (RWKAR) ......................................................... 657
15.3.13
Date Alarm Register (RDAYAR) ..................................................................... 658
15.3.14
Month Alarm Register (RMONAR) ................................................................. 659
15.3.15
Year Alarm Register (RYRAR)........................................................................ 660
15.3.16
RTC Control Register 1 (RCR1)....................................................................... 661
15.3.17
RTC Control Register 2 (RCR2)....................................................................... 663
15.3.18
RTC Control Register 3 (RCR3)....................................................................... 665
15.4
Operation .......................................................................................................................... 666
15.4.1
Initial Settings of Registers after Power-On ..................................................... 666
15.4.2
Setting Time...................................................................................................... 666
15.4.3
Reading Time.................................................................................................... 667
15.4.4
Alarm Function ................................................................................................. 668
15.5
Usage Notes ...................................................................................................................... 669
15.5.1
Register Writing during RTC Count................................................................. 669
15.5.2
Use of Realtime Clock (RTC) Periodic Interrupts ............................................ 669
15.5.3
Transition to Standby Mode after Setting Register........................................... 669
15.5.4
Crystal Oscillator Circuit for RTC.................................................................... 670
15.5.5
Procedure for Setting the 30-Second Adjustment Function.............................. 671
Section 16 Serial Communication Interface with FIFO (SCIF)........................ 673
16.1
Features............................................................................................................................. 673
16.2
Input/Output Pins.............................................................................................................. 675
16.3
Register Descriptions ........................................................................................................ 675
16.3.1
Receive Shift Register (SCRSR)....................................................................... 679
16.3.2
Receive FIFO Data Register (SCFRDR) .......................................................... 679
16.3.3
Transmit Shift Register (SCTSR) ..................................................................... 680
16.3.4
Transmit FIFO Data Register (SCFTDR) ......................................................... 680
16.3.5
Serial Mode Register (SCSMR)........................................................................ 681
16.3.6
Serial Control Register (SCSCR)...................................................................... 684