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How do power-on reset with watchdog timer and with RES # pin differ?

Latest Updated:03/23/2009

Question:

Is there a difference of the register initialized by power-on reset with the watchdog timer and power-on reset with RES # pin?

Answer:

None of FRQCR (frequency control register), WTCNT (watchdog timer counter) and WTCSR (watchdog timer control/status register) are initialized in power-on reset with the watchdog timer.
Please refer to "Register States in Each Operating Mode", the hardware manual of each product.
Suitable Products
SH7619
SH7618
SH7606