SH7713 Datasheet, PDF (19/904 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series

15.2 Input/Output Pins ............................................................................................................... 507
15.3 Register Descriptions ......................................................................................................... 507
15.3.1 64-Hz Counter (R64CNT) .................................................................................... 508
15.3.2 Second Counter (RSECCNT) ............................................................................... 508
15.3.3 Minute Counter (RMINCNT) ............................................................................... 509
15.3.4 Hour Counter (RHRCNT)..................................................................................... 509
15.3.5 Day of Week Counter (RWKCNT) ...................................................................... 510
15.3.6 Date Counter (RDAYCNT) .................................................................................. 512
15.3.7 Month Counter (RMONCNT) .............................................................................. 512
15.3.8 Year Counter (RYRCNT) ..................................................................................... 513
15.3.9 Second Alarm Register (RSECAR) ...................................................................... 514
15.3.10 Minute Alarm Register (RMINAR)...................................................................... 514
15.3.11 Hour Alarm Register (RHRAR) ........................................................................... 515
15.3.12 Day of Week Alarm Register (RWKAR) ............................................................. 516
15.3.13 Date Alarm Register (RDAYAR) ......................................................................... 517
15.3.14 Month Alarm Register (RMONAR) ..................................................................... 518
15.3.15 Year Alarm Register (RYRAR)............................................................................ 519
15.3.16 RTC Control Register 1 (RCR1)........................................................................... 520
15.3.17 RTC Control Register 2 (RCR2)........................................................................... 522
15.3.18 RTC Control Register 3 (RCR3)........................................................................... 524
15.4 Operation ........................................................................................................................... 525
15.4.1 Initial Settings of Registers after Power-On ......................................................... 525
15.4.2 Setting Time.......................................................................................................... 525
15.4.3 Reading Time........................................................................................................ 525
15.4.4 Alarm Function ..................................................................................................... 527
15.4.5 Crystal Oscillator Circuit ...................................................................................... 528
15.5 Usage Notes ....................................................................................................................... 529
15.5.1 Register Writing during RTC Count..................................................................... 529
15.5.2 Use of Realtime Clock (RTC) Periodic Interrupts ................................................ 529
15.5.3 Transition to Standby Mode after Setting Register............................................... 529
15.5.4 Usage Note about RTC Power Supply.................................................................. 530
Section 16 Serial Communication Interface with FIFO (SCIF) ........................531
16.1 Features.............................................................................................................................. 531
16.2 Input/Output Pins ............................................................................................................... 534
16.3 Register Descriptions ......................................................................................................... 535
16.3.1 Receive Shift Register (SCRSR)........................................................................... 536
16.3.2 Receive FIFO Data Register (SCFRDR) .............................................................. 536
16.3.3 Transmit Shift Register (SCTSR) ......................................................................... 537
16.3.4 Transmit FIFO Data Register (SCFTDR) ............................................................. 537
Rev.1.50 Aug. 30, 2006 Page xix of xl