SH7261 datasheet(20/1348 Pages) RENESAS

20 / 1348 page

Rev. 2.00 Sep. 07, 2007 Page xx of xxxii

15.3.4 Hour Counter (RHRCNT) .................................................................................... 645

15.3.5 Day of Week Counter (RWKCNT) ...................................................................... 646

15.3.6 Date Counter (RDAYCNT) .................................................................................. 647

15.3.7 Month Counter (RMONCNT) .............................................................................. 648

15.3.8 Year Counter (RYRCNT) ..................................................................................... 649

15.3.9 Second Alarm Register (RSECAR) ...................................................................... 650

15.3.10 Minute Alarm Register (RMINAR)...................................................................... 651

15.3.11 Hour Alarm Register (RHRAR) ........................................................................... 652

15.3.12 Day of Week Alarm Register (RWKAR) ............................................................. 653

15.3.13 Date Alarm Register (RDAYAR)......................................................................... 654

15.3.14 Month Alarm Register (RMONAR) ..................................................................... 655

15.3.15 Year Alarm Register (RYRAR)............................................................................ 656

15.3.16 RTC Control Register 1 (RCR1)........................................................................... 657

15.3.17 RTC Control Register 2 (RCR2)........................................................................... 659

15.3.18 RTC Control Register 3 (RCR3)........................................................................... 661

15.4

Operation ........................................................................................................................... 662

15.4.1 Initial Settings of Registers after Power-On ......................................................... 662

15.4.2 Setting Time ......................................................................................................... 662

15.4.3 Reading Time........................................................................................................ 663

15.4.4 Alarm Function..................................................................................................... 664

15.5

Usage Notes ....................................................................................................................... 665

15.5.1 Register Writing during RTC Count..................................................................... 665

15.5.2 Use of Realtime Clock (RTC) Periodic Interrupts................................................ 665

15.5.3 Transition to Standby Mode after Setting Register............................................... 666

15.5.4 Crystal Oscillator Circuit for RTC........................................................................ 666

15.5.5 Procedure for Setting the 30-Second Adjustment Function.................................. 667

Section 16 Serial Communication Interface with FIFO (SCIF)........................ 669

16.1

Features.............................................................................................................................. 669

16.2

Input/Output Pins...............................................................................................................671

16.3

Register Descriptions ......................................................................................................... 671

16.3.1 Receive Shift Register (SCRSR) .......................................................................... 675

16.3.2 Receive FIFO Data Register (SCFRDR) .............................................................. 675

16.3.3 Transmit Shift Register (SCTSR) ......................................................................... 676

16.3.4 Transmit FIFO Data Register (SCFTDR)............................................................. 676

16.3.5 Serial Mode Register (SCSMR)............................................................................ 677

16.3.6 Serial Control Register (SCSCR).......................................................................... 680

16.3.7 Serial Status Register (SCFSR) ............................................................................ 684

16.3.8 Bit Rate Register (SCBRR) .................................................................................. 692

16.3.9 FIFO Control Register (SCFCR) .......................................................................... 700

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