SH7727 datasheet(41/1109 Pages) RENESAS

41 / 1109 page

Rev. 5.00 Dec 12, 2005 page xli of lxxii

Section 15 Timer (TMU)................................................................................................... 443

15.1 Overview........................................................................................................................... 443

15.1.1 Features................................................................................................................ 443

15.1.2 Block Diagram..................................................................................................... 444

15.1.3 Register Configuration......................................................................................... 445

15.2 TMU Registers.................................................................................................................. 446

15.2.1 Timer Start Register (TSTR)................................................................................ 446

15.2.2 Timer Control Register (TCR)............................................................................. 447

15.2.3 Timer Constant Register (TCOR) ........................................................................ 448

15.2.4 Timer Counters (TCNT) ...................................................................................... 449

15.3 TMU Operation................................................................................................................. 451

15.3.1 Overview.............................................................................................................. 451

15.3.2 Basic Functions.................................................................................................... 451

15.4 Interrupts ........................................................................................................................... 453

15.4.1 Status Flag Set Timing......................................................................................... 453

15.4.2 Status Flag Clear Timing ..................................................................................... 454

15.4.3 Interrupt Sources and Priorities............................................................................ 454

15.5 Usage Notes ...................................................................................................................... 455

15.5.1 Writing to Registers ............................................................................................. 455

15.5.2 Reading Registers ................................................................................................ 455

Section 16 Realtime Clock (RTC).................................................................................. 457

16.1 Overview........................................................................................................................... 457

16.1.1 Features................................................................................................................ 457

16.1.2 Block Diagram..................................................................................................... 458

16.1.3 Pin Configuration................................................................................................. 459

16.1.4 RTC Register Configuration ................................................................................ 460

16.2 Register Descriptions ........................................................................................................ 461

16.2.1 64-Hz Counter (R64CNT) ................................................................................... 461

16.2.2 Second Counter (RSECCNT) .............................................................................. 461

16.2.3 Minute Counter (RMINCNT) .............................................................................. 462

16.2.4 Hour Counter (RHRCNT).................................................................................... 462

16.2.5 Day of the Week Counter (RWKCNT)................................................................ 463

16.2.6 Date Counter (RDAYCNT) ................................................................................. 464

16.2.7 Month Counter (RMONCNT) ............................................................................. 464

16.2.8 Year Counter (RYRCNT) .................................................................................... 465

16.2.9 Second Alarm Register (RSECAR) ..................................................................... 465

16.2.10 Minute Alarm Register (RMINAR) ..................................................................... 466

16.2.11 Hour Alarm Register (RHRAR)........................................................................... 466

16.2.12 Day of the Week Alarm Register (RWKAR)....................................................... 467

16.2.13 Date Alarm Register (RDAYAR) ........................................................................ 467

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