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Renesas Electronics America - Knowledgebase

Is resetting same as providing the reset input to RES pin outside CPU?

Latest Updated:09/11/2012


The inside of the LSI can be reset when using the watchdog timer (WDT) in the watchdog timer mode. In this case, is the reset processing same as the processing when providing the reset input to the RES pin from outside the CPU?


When setting the type of  watchdog timer (WDT) to the power on reset mode, the same processing shall be applied except  that the FRQCR register of the clock pulse generator (CPG) and the WTCNT register and the WTCSR register of the watchdog timer (WDT) are not initialized. For more information, refer to the section of "Watchdog Timer (WDT)" in the Hardware manuals.
Suitable Products
SH7285, SH7286
SH7214, SH7216
SH7239, SH7237
SH7146, SH7149
SH7131, SH7132, SH7136, SH7137
SH7083, SH7084, SH7085, SH7086