r4f2426 Renesas Electronics Corporation., r4f2426 Datasheet - Page 22

• Manufacturer Part Number: r4f2426
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

Section 14 Watchdog Timer (WDT) ................................................................. 823
14.1 Features.............................................................................................................................. 823
14.2 Input/Output Pin ................................................................................................................ 824
14.3 Register Descriptions ......................................................................................................... 825
14.4 Operation ........................................................................................................................... 828
14.5 Interrupt Source ................................................................................................................. 831
14.6 Usage Notes ....................................................................................................................... 831
Section 15 Serial Communication Interface (SCI, IrDA) ................................. 835
15.1 Features.............................................................................................................................. 835
15.2 Input/Output Pins............................................................................................................... 838
15.3 Register Descriptions ......................................................................................................... 839
15.4 Operation in Asynchronous Mode ..................................................................................... 869
Rev. 1.00 Sep. 19, 2008 Page xxii of xxviii
13.8.6 Mode Setting with Cascaded Connection ............................................................. 821
13.8.7 Module Stop Mode Setting ................................................................................... 821
13.8.8 Interrupts in Module Stop Mode........................................................................... 821
14.3.1 Timer Counter (TCNT)......................................................................................... 825
14.3.2 Timer Control/Status Register (TCSR)................................................................. 825
14.3.3 Reset Control/Status Register (RSTCSR)............................................................. 827
14.4.1 Watchdog Timer Mode......................................................................................... 828
14.4.2 Interval Timer Mode............................................................................................. 829
14.6.1 Notes on Register Access ..................................................................................... 831
14.6.2 Contention between Timer Counter (TCNT) Write and Increment ...................... 833
14.6.3 Changing Value of CKS2 to CKS0 ...................................................................... 833
14.6.4 Switching between Watchdog Timer Mode and Interval Timer Mode................. 833
14.6.5 Internal Reset in Watchdog Timer Mode.............................................................. 834
14.6.6 System Reset by WDTOVF Signal....................................................................... 834
15.3.1 Receive Shift Register (RSR) ............................................................................... 840
15.3.2 Receive Data Register (RDR)............................................................................... 840
15.3.3 Transmit Data Register (TDR).............................................................................. 841
15.3.4 Transmit Shift Register (TSR) .............................................................................. 841
15.3.5 Serial Mode Register (SMR) ................................................................................ 841
15.3.6 Serial Control Register (SCR) .............................................................................. 845
15.3.7 Serial Status Register (SSR) ................................................................................. 850
15.3.8 Smart Card Mode Register (SCMR)..................................................................... 858
15.3.9 Bit Rate Register (BRR) ....................................................................................... 859
15.3.10 IrDA Control Register (IrCR)............................................................................... 866
15.3.11 Serial Extension Mode Register (SEMR) ............................................................. 867
15.4.1 Data Transfer Format............................................................................................ 869