SH7145 datasheet(30/773 Pages) RENESAS

30 / 773 page

Rev. 2.0, 09/02, page xxviii of xxxviii

Figure 11.108 Error Occurrence in Complementary PWM Mode,

Recovery in Complementary PWM Mode.......................................................... 332

Figure 11.109 Error Occurrence in Complementary PWM Mode,

Recovery in Reset-Synchronous PWM Mode .................................................... 333

Figure 11.110 Error Occurrence in Reset-Synchronous PWM Mode,

Recovery in Normal Mode.................................................................................. 334

Figure 11.111 Error Occurrence in Reset-Synchronous PWM Mode,

Recovery in PWM Mode 1 ................................................................................. 335

Figure 11.112 Error Occurrence in Reset-Synchronous PWM Mode,

Recovery in Complementary PWM Mode.......................................................... 336

Figure 11.113 Error Occurrence in Reset-Synchronous PWM Mode,

Recovery in Reset-Synchronous PWM Mode .................................................... 337

Figure 11.114 POE Block Diagram ............................................................................................ 339

Figure 11.115 Low-Level Detection Operation .......................................................................... 346

Figure 11.116 Output-Level Detection Operation ...................................................................... 346

Figure 11.117 Falling Edge Detection Operation ....................................................................... 347

Section 12 Watchdog Timer

Figure 12.1 Block Diagram of WDT .......................................................................................... 350

Figure 12.2 Operation in Watchdog Timer Mode....................................................................... 355

Figure 12.3 Operation in Interval Timer Mode........................................................................... 355

Figure 12.4 Timing of Setting OVF............................................................................................ 356

Figure 12.5 Timing of Setting WOVF ........................................................................................ 357

Figure 12.6 Writing to TCNT and TCSR ................................................................................... 358

Figure 12.7 Writing to RSTCSR................................................................................................. 358

Figure 12.8 Contention between TCNT Write and Increment.................................................... 359

Figure 12.9 Example of System Reset Circuit Using

WDTOVF Signal ....................................360

Section 13 Serial Communication Interface (SCI)

Figure 13.1 Block Diagram of SCI ............................................................................................. 362

Figure 13.2 Data Format in Asynchronous Communication

(Example with 8-Bit Data, Parity, Two Stop Bits) .................................................. 381

Figure 13.3 Receive Data Sampling Timing in Asynchronous Mode ........................................ 383

Figure 13.4 Relation between Output Clock and Transmit Data Phase (Asynchronous Mode) . 384

Figure 13.5 Sample SCI Initialization Flowchart ....................................................................... 385

Figure 13.6 Example of Operation in Transmission in Asynchronous Mode

(Example with 8-Bit Data, Parity, One Stop Bit)..................................................... 386

Figure 13.7 Sample Serial Transmission Flowchart ................................................................... 387

Figure 13.8 Example of SCI Operation in Reception

(Example with 8-Bit Data, Parity, One Stop Bit)..................................................... 388

Figure 13.9 Sample Serial Reception Data Flowchart (1) .......................................................... 390

Figure 13.9 Sample Serial Reception Data Flowchart (2) .......................................................... 391

Figure 13.10 Example of Communication Using Multiprocessor Format

(Transmission of Data H’AA to Receiving Station A) .......................................... 393

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