IWDG_KR

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Interpret as IWDG_KR

Description

IWDG_KR register

Fields

KEY

Key value. Software can only write these bits. Reading returns the reset value. These bits must be written by software at regular intervals with the key value 0xAAAA, otherwise the watchdog generates a reset when the counter reaches 0. Writing the key value 0x5555 to enables access to the IWDG_PR, IWDG_RLR and IWDG_WINR registers. Writing the key value CCCCh starts the watchdog

Links

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