SH7101 Datasheet, PDF (17/486 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

8.7.19 Output Level in Complementary PWM Mode and
Reset-Synchronous PWM Mode........................................................................... 219
8.7.20 Interrupts in Module Standby Mode ..................................................................... 219
8.7.21 Simultaneous Input Capture of TCNT_1 and TCNT_2 in Cascade Connection... 219
8.8 MTU Output Pin Initialization ........................................................................................... 220
8.8.1 Operating Modes................................................................................................... 220
8.8.2 Reset Start Operation ............................................................................................ 220
8.8.3 Operation in Case of Re-Setting Due to Error During Operation, Etc. ................. 221
8.8.4 Overview of Initialization Procedures and Mode Transitions
in Case of Error during Operation, Etc. ................................................................ 222
8.9 Port Output Enable (POE).................................................................................................. 252
8.9.1 Features................................................................................................................. 252
8.9.2 Pin Configuration.................................................................................................. 254
8.9.3 Register Configuration.......................................................................................... 254
8.9.4 Operation .............................................................................................................. 259
8.9.5 Usage Note............................................................................................................ 262
Section 9 Watchdog Timer ............................................................................... 263
9.1 Features .............................................................................................................................. 263
9.2 Input/Output Pin................................................................................................................. 264
9.3 Register Descriptions ......................................................................................................... 265
9.3.1 Timer Counter (TCNT)......................................................................................... 265
9.3.2 Timer Control/Status Register (TCSR) ................................................................. 266
9.3.3 Reset Control/Status Register (RSTCSR) ............................................................. 268
9.4 Operation............................................................................................................................ 269
9.4.1 Watchdog Timer Mode ......................................................................................... 269
9.4.2 Interval Timer Mode ............................................................................................. 271
9.4.3 Clearing Software Standby Mode ......................................................................... 271
9.4.4 Timing of Setting the Overflow Flag (OVF) ........................................................ 272
9.4.5 Timing of Setting the Watchdog Timer Overflow Flag (WOVF)......................... 272
9.5 Interrupt Source.................................................................................................................. 273
9.6 Usage Notes ....................................................................................................................... 273
9.6.1 Notes on Register Access...................................................................................... 273
9.6.2 TCNT Write and Increment Contention................................................................ 275
9.6.3 Changing CKS2 to CKS0 Bit Values.................................................................... 275
9.6.4 Changing between Watchdog Timer/Interval Timer Modes................................. 275
9.6.5 System Reset by WDTOVF Signal....................................................................... 276
9.6.6 Internal Reset in Watchdog Timer Mode.............................................................. 276
9.6.7 Manual Reset in Watchdog Timer Mode .............................................................. 276
9.6.8 Notes on Using WDTOVF pin.............................................................................. 276
Rev.2.00 Sep. 27, 2007 Page xvii of xxxiv
REJ09B0394-0200