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#[doc = r"Value to write to the register"]
pub struct W {
    bits: u32,
}
impl super::KR {
    #[doc = r"Writes to the register"]
    #[inline(always)]
    pub fn write<F>(&self, f: F)
    where
        F: FnOnce(&mut W) -> &mut W,
    {
        self.register.set(
            f(&mut W {
                bits: Self::reset_value(),
            })
            .bits,
        );
    }
    #[doc = r"Reset value of the register"]
    #[inline(always)]
    pub const fn reset_value() -> u32 {
        0
    }
    #[doc = r"Writes the reset value to the register"]
    #[inline(always)]
    pub fn reset(&self) {
        self.register.set(Self::reset_value())
    }
}
#[doc = "Values that can be written to the field `KEY`"]
#[derive(Clone, Copy, Debug, PartialEq)]
pub enum KEYW {
    #[doc = "Enable access to PR, RLR and WINR registers (0x5555)"]
    ENABLE,
    #[doc = "Reset the watchdog value (0xAAAA)"]
    RESET,
    #[doc = "Start the watchdog (0xCCCC)"]
    START,
}
impl KEYW {
    #[allow(missing_docs)]
    #[doc(hidden)]
    #[inline(always)]
    pub fn _bits(&self) -> u16 {
        match *self {
            KEYW::ENABLE => 21845,
            KEYW::RESET => 43690,
            KEYW::START => 52428,
        }
    }
}
#[doc = r"Proxy"]
pub struct _KEYW<'a> {
    w: &'a mut W,
}
impl<'a> _KEYW<'a> {
    #[doc = r"Writes `variant` to the field"]
    #[inline(always)]
    pub fn variant(self, variant: KEYW) -> &'a mut W {
        unsafe { self.bits(variant._bits()) }
    }
    #[doc = "Enable access to PR, RLR and WINR registers (0x5555)"]
    #[inline(always)]
    pub fn enable(self) -> &'a mut W {
        self.variant(KEYW::ENABLE)
    }
    #[doc = "Reset the watchdog value (0xAAAA)"]
    #[inline(always)]
    pub fn reset(self) -> &'a mut W {
        self.variant(KEYW::RESET)
    }
    #[doc = "Start the watchdog (0xCCCC)"]
    #[inline(always)]
    pub fn start(self) -> &'a mut W {
        self.variant(KEYW::START)
    }
    #[doc = r"Writes raw bits to the field"]
    #[inline(always)]
    pub unsafe fn bits(self, value: u16) -> &'a mut W {
        self.w.bits &= !(0xffff << 0);
        self.w.bits |= ((value as u32) & 0xffff) << 0;
        self.w
    }
}
impl W {
    #[doc = r"Writes raw bits to the register"]
    #[inline(always)]
    pub unsafe fn bits(&mut self, bits: u32) -> &mut Self {
        self.bits = bits;
        self
    }
    #[doc = "Bits 0:15 - Key value (write only, read 0x0000) 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 enable access to the IWDG_PR, IWDG_RLR and IWDG_WINR registers (see Section23.3.6: Register access protection) Writing the key value CCCCh starts the watchdog (except if the hardware watchdog option is selected)"]
    #[inline(always)]
    pub fn key(&mut self) -> _KEYW {
        _KEYW { w: self }
    }
}