HD6412332 RENESAS [Renesas Technology Corp], HD6412332 Datasheet - Page 624

• Manufacturer Part Number: HD6412332
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 13 Watchdog Timer
13.5.5
Internal Reset in Watchdog Timer Mode
The chip is not reset internally if TCNT overflows while the RSTE bit is cleared to 0 during
watchdog timer operation, but TCNT and TCSR of the WDT are reset.
TCNT, TCSR, and RSTCSR cannot be written to while the WDTOVF signal is low. Also note
that a read of the WOVF flag is not recognized during this period. To clear the WOVF flag,
therefore, read RSTCSR after the WDTOVF signal goes high, then write 0 to the WOVF flag.
Rev.4.00 Sep. 07, 2007 Page 594 of 1210
REJ09B0245-0400