HD6412240 RENESAS [Renesas Technology Corp], HD6412240 Datasheet - Page 37

• Manufacturer Part Number: HD6412240
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2200 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 11 Watchdog Timer
11.1 Overview........................................................................................................................... 387
11.2 Register Descriptions ........................................................................................................ 390
11.3 Operation........................................................................................................................... 396
11.4 Interrupts ........................................................................................................................... 400
11.5 Usage Notes ...................................................................................................................... 401
Section 12 Serial Communication Interface (SCI)
12.1 Overview........................................................................................................................... 403
12.2 Register Descriptions ........................................................................................................ 408
11.1.1 Features................................................................................................................ 387
11.1.2 Block Diagram ..................................................................................................... 388
11.1.3 Pin Configuration................................................................................................. 389
11.1.4 Register Configuration......................................................................................... 389
11.2.1 Timer Counter (TCNT)........................................................................................ 390
11.2.2 Timer Control/Status Register (TCSR) ................................................................ 390
11.2.3 Reset Control/Status Register (RSTCSR) ............................................................ 392
11.2.4 Notes on Register Access..................................................................................... 394
11.3.1 Watchdog Timer Operation ................................................................................. 396
11.3.2 Interval Timer Operation ..................................................................................... 398
11.3.3 Timing of Setting Overflow Flag (OVF) ............................................................. 399
11.3.4 Timing of Setting of Watchdog Timer Overflow Flag (WOVF) ......................... 400
11.5.1 Contention between Timer Counter (TCNT) Write and Increment ..................... 401
11.5.2 Changing Value of CKS2 to CKS0...................................................................... 401
11.5.3 Switching between Watchdog Timer Mode and Interval Timer Mode................ 402
11.5.4 System Reset by WDTOVF Signal...................................................................... 402
11.5.5 Internal Reset in Watchdog Timer Mode............................................................. 402
11.5.6 OVF Flag Clearing in Interval Timer Mode ........................................................ 402
12.1.1 Features................................................................................................................ 403
12.1.2 Block Diagram ..................................................................................................... 405
12.1.3 Pin Configuration................................................................................................. 406
12.1.4 Register Configuration......................................................................................... 407
12.2.1 Receive Shift Register (RSR)............................................................................... 408
12.2.2 Receive Data Register (RDR) .............................................................................. 408
12.2.3 Transmit Shift Register (TSR) ............................................................................. 409
12.2.4 Transmit Data Register (TDR)............................................................................. 409
12.2.5 Serial Mode Register (SMR)................................................................................ 410
12.2.6 Serial Control Register (SCR).............................................................................. 413
12.2.7 Serial Status Register (SSR)................................................................................. 417
12.2.8 Bit Rate Register (BRR) ...................................................................................... 421
12.2.9 Smart Card Mode Register (SCMR) .................................................................... 430
............................................................................................. 387
Rev.3.00 Mar. 26, 2007 Page xxxvii of xlii
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REJ09B0355-0300