H8SSLASH2214 datasheet(39/936 Pages) RENESAS

39 / 936 page

Rev.4.00 Sep. 18, 2008 Page xxxix of lx

REJ09B0189-0400

10.4.1 Overview............................................................................................................... 391

10.4.2 Basic Functions ..................................................................................................... 392

10.4.3 Synchronous Operation......................................................................................... 399

10.4.4 Buffer Operation ................................................................................................... 401

10.4.5 PWM Modes ......................................................................................................... 405

10.4.6 Phase Counting Mode ........................................................................................... 411

10.5

Interrupts ............................................................................................................................ 416

10.5.1 Interrupt Sources and Priorities............................................................................. 416

10.5.2 DTC and DMAC Activation ................................................................................. 417

10.6

Operation Timing............................................................................................................... 418

10.6.1 Input/Output Timing ............................................................................................. 418

10.6.2 Interrupt Signal Timing......................................................................................... 423

10.7

Usage Notes ....................................................................................................................... 427

Section 11 Watchdog Timer (WDT)................................................................. 437

11.1

Overview............................................................................................................................ 437

11.1.1 Features ................................................................................................................. 437

11.1.2 Block Diagram ...................................................................................................... 438

11.1.3 Register Configuration.......................................................................................... 439

11.2

Register Descriptions ......................................................................................................... 440

11.2.1 Timer Counter (TCNT)......................................................................................... 440

11.2.2 Timer Control/Status Register (TCSR) ................................................................. 440

11.2.3 Reset Control/Status Register (RSTCSR) ............................................................. 442

11.2.4 Notes on Register Access...................................................................................... 444

11.3

Operation............................................................................................................................ 446

11.3.1 Watchdog Timer Operation .................................................................................. 446

11.3.2 Interval Timer Operation ...................................................................................... 447

11.3.3 Timing of Setting of Overflow Flag (OVF) .......................................................... 448

11.3.4 Timing of Setting of Watchdog Timer Overflow Flag (WOVF) .......................... 449

11.4

Interrupts ............................................................................................................................ 449

11.5

Usage Notes ....................................................................................................................... 450

11.5.1 Contention between Timer Counter (TCNT) Write and Increment ...................... 450

11.5.2 Changing Value of CKS2 to CKS0....................................................................... 450

11.5.3 Switching between Watchdog Timer Mode and Interval Timer Mode................. 451

11.5.4 Internal Reset in Watchdog Timer Mode.............................................................. 451

11.5.5 OVF Flag Clear Operation in Interval Timer Mode.............................................. 451

Section 12 Serial Communication Interface (SCI) ........................................... 453

12.1

Overview............................................................................................................................ 453

12.1.1 Features ................................................................................................................. 453

12.1.2 Block Diagram ...................................................................................................... 455

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