SH7750_08 Datasheet, PDF (53/1162 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

11.1.2 Block Diagram ..................................................................................................... 312
11.1.3 Pin Configuration................................................................................................. 313
11.1.4 Register Configuration......................................................................................... 313
11.2 Register Descriptions ........................................................................................................ 315
11.2.1 64 Hz Counter (R64CNT).................................................................................... 315
11.2.2 Second Counter (RSECCNT) .............................................................................. 316
11.2.3 Minute Counter (RMINCNT) .............................................................................. 316
11.2.4 Hour Counter (RHRCNT).................................................................................... 317
11.2.5 Day-of-Week Counter (RWKCNT)..................................................................... 317
11.2.6 Day Counter (RDAYCNT) .................................................................................. 318
11.2.7 Month Counter (RMONCNT) ............................................................................. 318
11.2.8 Year Counter (RYRCNT) .................................................................................... 319
11.2.9 Second Alarm Register (RSECAR) ..................................................................... 320
11.2.10 Minute Alarm Register (RMINAR) ..................................................................... 320
11.2.11 Hour Alarm Register (RHRAR)........................................................................... 321
11.2.12 Day-of-Week Alarm Register (RWKAR)............................................................ 321
11.2.13 Day Alarm Register (RDAYAR) ......................................................................... 322
11.2.14 Month Alarm Register (RMONAR) .................................................................... 323
11.2.15 RTC Control Register 1 (RCR1).......................................................................... 323
11.2.16 RTC Control Register 2 (RCR2).......................................................................... 325
11.2.17 RTC Control Register 3 (RCR3) and Year-Alarm Register (RYRAR)
(SH7750R Only) .................................................................................................. 327
11.3 Operation........................................................................................................................... 329
11.3.1 Time Setting Procedures ...................................................................................... 329
11.3.2 Time Reading Procedures .................................................................................... 330
11.3.3 Alarm Function .................................................................................................... 332
11.4 Interrupts ........................................................................................................................... 333
11.5 Usage Notes ...................................................................................................................... 333
11.5.1 Register Initialization........................................................................................... 333
11.5.2 Carry Flag and Interrupt Flag in Standby Mode .................................................. 333
11.5.3 Crystal Oscillator Circuit ..................................................................................... 333
11.5.4 RTC Register Settings (SH7750 only)................................................................. 334
Section 12 Timer Unit (TMU) ......................................................................................... 337
12.1 Overview........................................................................................................................... 337
12.1.1 Features................................................................................................................ 337
12.1.2 Block Diagram ..................................................................................................... 338
12.1.3 Pin Configuration................................................................................................. 338
12.1.4 Register Configuration......................................................................................... 339
12.2 Register Descriptions ........................................................................................................ 341
Rev.7.00 Oct. 10, 2008 Page liii of lxxxiv
REJ09B0366-0700