SH7616 datasheet(20/935 Pages) RENESAS

20 / 935 page

Rev. 2.00 Mar 09, 2006 page xx of xxvi

11.4.1 Example of DMA Data Transfer Between SCIF and External Memory.............. 516

11.5 Usage Notes ...................................................................................................................... 516

Section 12 16-Bit Free-Running Timer (FRT)............................................................ 519

12.1 Overview........................................................................................................................... 519

12.1.1 Features................................................................................................................ 519

12.1.2 Block Diagram..................................................................................................... 520

12.1.3 Pin Configuration................................................................................................. 521

12.1.4 Register Configuration......................................................................................... 521

12.2 Register Descriptions ........................................................................................................ 522

12.2.1 Free-Running Counter (FRC) .............................................................................. 522

12.2.2 Output Compare Registers A and B (OCRA and OCRB).................................... 522

12.2.3 Input Capture Register (FICR)............................................................................. 523

12.2.4 Timer Interrupt Enable Register (TIER) .............................................................. 523

12.2.5 Free-Running Timer Control/Status Register (FTCSR)....................................... 524

12.2.6 Timer Control Register (TCR)............................................................................. 526

12.2.7 Timer Output Compare Control Register (TOCR) .............................................. 527

12.3 CPU Interface.................................................................................................................... 528

12.4 Operation .......................................................................................................................... 531

12.4.1 FRC Count Timing .............................................................................................. 531

12.4.2 Output Timing for Output Compare .................................................................... 532

12.4.3 FRC Clear Timing................................................................................................ 532

12.4.4 Input Capture Input Timing ................................................................................. 533

12.4.5 Input Capture Flag (ICF) Setting Timing............................................................. 534

12.4.6 Output Compare Flag (OCFA, OCFB) Setting Timing ....................................... 534

12.4.7 Timer Overflow Flag (OVF) Setting Timing....................................................... 535

12.5 Interrupt Sources............................................................................................................... 536

12.6 Example of FRT Use......................................................................................................... 536

12.7 Usage Notes ...................................................................................................................... 537

12.7.1 Contention between FRC Write and Clear........................................................... 537

12.7.2 Contention between FRC Write and Increment ................................................... 538

12.7.3 Contention between OCR Write and Compare Match......................................... 539

12.7.4 Internal Clock Switching and Counter Operation ................................................ 540

12.7.5 Timer Output (FTOA, FTOB) ............................................................................. 541

Section 13 Watchdog Timer (WDT).............................................................................. 543

13.1 Overview........................................................................................................................... 543

13.1.1 Features................................................................................................................ 543

13.1.2 Block Diagram..................................................................................................... 544

13.1.3 Pin Configuration................................................................................................. 544

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