#[doc = "Register `SR` reader"]
pub type R = crate::R<SR_SPEC>;
#[doc = "Field `RESP_REC` reader - Represents the received ACK value in master mode or slave mode.\\\\ 0: ACK\\\\ 1: NACK."]
pub type RESP_REC_R = crate::BitReader;
#[doc = "Field `SLAVE_RW` reader - Represents the transfer direction in slave mode.\\\\ 1: Master reads from slave\\\\ 0: Master writes to slave."]
pub type SLAVE_RW_R = crate::BitReader;
#[doc = "Field `ARB_LOST` reader - Represents whether the I2C controller loses control of SCL line.\\\\ 0: No arbitration lost\\\\ 1: Arbitration lost\\\\"]
pub type ARB_LOST_R = crate::BitReader;
#[doc = "Field `BUS_BUSY` reader - Represents the I2C bus state.\\\\ 1: The I2C bus is busy transferring data\\\\ 0: The I2C bus is in idle state.\\\\"]
pub type BUS_BUSY_R = crate::BitReader;
#[doc = "Field `SLAVE_ADDRESSED` reader - Represents whether the address sent by the master is equal to the address of the slave.\\\\ Valid only when the module is configured as an I2C Slave.\\\\ 0: Not equal\\\\ 1: Equal\\\\"]
pub type SLAVE_ADDRESSED_R = crate::BitReader;
#[doc = "Field `RXFIFO_CNT` reader - Represents the number of data bytes received in RAM."]
pub type RXFIFO_CNT_R = crate::FieldReader;
#[doc = "Field `STRETCH_CAUSE` reader - Represents the cause of SCL clocking stretching in slave mode.\\\\ 0: Stretching SCL low when the master starts to read data.\\\\ 1: Stretching SCL low when I2C TX FIFO is empty in slave mode.\\\\ 2: Stretching SCL low when I2C RX FIFO is full in slave mode."]
pub type STRETCH_CAUSE_R = crate::FieldReader;
#[doc = "Field `TXFIFO_CNT` reader - Represents the number of data bytes to be sent."]
pub type TXFIFO_CNT_R = crate::FieldReader;
#[doc = "Field `SCL_MAIN_STATE_LAST` reader - Represents the states of the I2C module state machine.\\\\ 0: Idle\\\\ 1: Address shift\\\\ 2: ACK address\\\\ 3: Rx data\\\\ 4: Tx data\\\\ 5: Send ACK\\\\ 6: Wait ACK"]
pub type SCL_MAIN_STATE_LAST_R = crate::FieldReader;
#[doc = "Field `SCL_STATE_LAST` reader - Represents the states of the state machine used to produce SCL.\\\\ 0: Idle\\\\ 1: Start\\\\ 2: Negative edge\\\\ 3: Low\\\\ 4: Positive edge\\\\ 5: High\\\\ 6: Stop"]
pub type SCL_STATE_LAST_R = crate::FieldReader;
impl R {
#[doc = "Bit 0 - Represents the received ACK value in master mode or slave mode.\\\\ 0: ACK\\\\ 1: NACK."]
#[inline(always)]
pub fn resp_rec(&self) -> RESP_REC_R {
RESP_REC_R::new((self.bits & 1) != 0)
}
#[doc = "Bit 1 - Represents the transfer direction in slave mode.\\\\ 1: Master reads from slave\\\\ 0: Master writes to slave."]
#[inline(always)]
pub fn slave_rw(&self) -> SLAVE_RW_R {
SLAVE_RW_R::new(((self.bits >> 1) & 1) != 0)
}
#[doc = "Bit 3 - Represents whether the I2C controller loses control of SCL line.\\\\ 0: No arbitration lost\\\\ 1: Arbitration lost\\\\"]
#[inline(always)]
pub fn arb_lost(&self) -> ARB_LOST_R {
ARB_LOST_R::new(((self.bits >> 3) & 1) != 0)
}
#[doc = "Bit 4 - Represents the I2C bus state.\\\\ 1: The I2C bus is busy transferring data\\\\ 0: The I2C bus is in idle state.\\\\"]
#[inline(always)]
pub fn bus_busy(&self) -> BUS_BUSY_R {
BUS_BUSY_R::new(((self.bits >> 4) & 1) != 0)
}
#[doc = "Bit 5 - Represents whether the address sent by the master is equal to the address of the slave.\\\\ Valid only when the module is configured as an I2C Slave.\\\\ 0: Not equal\\\\ 1: Equal\\\\"]
#[inline(always)]
pub fn slave_addressed(&self) -> SLAVE_ADDRESSED_R {
SLAVE_ADDRESSED_R::new(((self.bits >> 5) & 1) != 0)
}
#[doc = "Bits 8:13 - Represents the number of data bytes received in RAM."]
#[inline(always)]
pub fn rxfifo_cnt(&self) -> RXFIFO_CNT_R {
RXFIFO_CNT_R::new(((self.bits >> 8) & 0x3f) as u8)
}
#[doc = "Bits 14:15 - Represents the cause of SCL clocking stretching in slave mode.\\\\ 0: Stretching SCL low when the master starts to read data.\\\\ 1: Stretching SCL low when I2C TX FIFO is empty in slave mode.\\\\ 2: Stretching SCL low when I2C RX FIFO is full in slave mode."]
#[inline(always)]
pub fn stretch_cause(&self) -> STRETCH_CAUSE_R {
STRETCH_CAUSE_R::new(((self.bits >> 14) & 3) as u8)
}
#[doc = "Bits 18:23 - Represents the number of data bytes to be sent."]
#[inline(always)]
pub fn txfifo_cnt(&self) -> TXFIFO_CNT_R {
TXFIFO_CNT_R::new(((self.bits >> 18) & 0x3f) as u8)
}
#[doc = "Bits 24:26 - Represents the states of the I2C module state machine.\\\\ 0: Idle\\\\ 1: Address shift\\\\ 2: ACK address\\\\ 3: Rx data\\\\ 4: Tx data\\\\ 5: Send ACK\\\\ 6: Wait ACK"]
#[inline(always)]
pub fn scl_main_state_last(&self) -> SCL_MAIN_STATE_LAST_R {
SCL_MAIN_STATE_LAST_R::new(((self.bits >> 24) & 7) as u8)
}
#[doc = "Bits 28:30 - Represents the states of the state machine used to produce SCL.\\\\ 0: Idle\\\\ 1: Start\\\\ 2: Negative edge\\\\ 3: Low\\\\ 4: Positive edge\\\\ 5: High\\\\ 6: Stop"]
#[inline(always)]
pub fn scl_state_last(&self) -> SCL_STATE_LAST_R {
SCL_STATE_LAST_R::new(((self.bits >> 28) & 7) as u8)
}
}
#[cfg(feature = "impl-register-debug")]
impl core::fmt::Debug for R {
fn fmt(&self, f: &mut core::fmt::Formatter) -> core::fmt::Result {
f.debug_struct("SR")
.field("resp_rec", &self.resp_rec())
.field("slave_rw", &self.slave_rw())
.field("arb_lost", &self.arb_lost())
.field("bus_busy", &self.bus_busy())
.field("slave_addressed", &self.slave_addressed())
.field("rxfifo_cnt", &self.rxfifo_cnt())
.field("stretch_cause", &self.stretch_cause())
.field("txfifo_cnt", &self.txfifo_cnt())
.field("scl_main_state_last", &self.scl_main_state_last())
.field("scl_state_last", &self.scl_state_last())
.finish()
}
}
#[doc = "Describe I2C work status\n\nYou can [`read`](crate::Reg::read) this register and get [`sr::R`](R). See [API](https://docs.rs/svd2rust/#read--modify--write-api)."]
pub struct SR_SPEC;
impl crate::RegisterSpec for SR_SPEC {
type Ux = u32;
}
#[doc = "`read()` method returns [`sr::R`](R) reader structure"]
impl crate::Readable for SR_SPEC {}
#[doc = "`reset()` method sets SR to value 0xc000"]
impl crate::Resettable for SR_SPEC {
const RESET_VALUE: u32 = 0xc000;
}