Struct rp2040_pac2::i2c::regs::IcSsSclHcnt

#[repr(transparent)]pub struct IcSsSclHcnt(pub u32);

Standard Speed I2C Clock SCL High Count Register

Implementations

impl IcSsSclHcnt

pub const fn ic_ss_scl_hcnt(&self) -> u16

This register must be set before any I2C bus transaction can take place to ensure proper I/O timing. This register sets the SCL clock high-period count for standard speed. For more information, refer to ‘IC_CLK Frequency Configuration’. This register can be written only when the I2C interface is disabled which corresponds to the IC_ENABLE[0] register being set to 0. Writes at other times have no effect. The minimum valid value is 6; hardware prevents values less than this being written, and if attempted results in 6 being set. For designs with APB_DATA_WIDTH = 8, the order of programming is important to ensure the correct operation of the DW_apb_i2c. The lower byte must be programmed first. Then the upper byte is programmed. NOTE: This register must not be programmed to a value higher than 65525, because DW_apb_i2c uses a 16-bit counter to flag an I2C bus idle condition when this counter reaches a value of IC_SS_SCL_HCNT + 10.

pub fn set_ic_ss_scl_hcnt(&mut self, val: u16)

This register must be set before any I2C bus transaction can take place to ensure proper I/O timing. This register sets the SCL clock high-period count for standard speed. For more information, refer to ‘IC_CLK Frequency Configuration’. This register can be written only when the I2C interface is disabled which corresponds to the IC_ENABLE[0] register being set to 0. Writes at other times have no effect. The minimum valid value is 6; hardware prevents values less than this being written, and if attempted results in 6 being set. For designs with APB_DATA_WIDTH = 8, the order of programming is important to ensure the correct operation of the DW_apb_i2c. The lower byte must be programmed first. Then the upper byte is programmed. NOTE: This register must not be programmed to a value higher than 65525, because DW_apb_i2c uses a 16-bit counter to flag an I2C bus idle condition when this counter reaches a value of IC_SS_SCL_HCNT + 10.

Trait Implementations

impl Clone for IcSsSclHcnt

fn clone(&self) -> IcSsSclHcnt

Returns a copy of the value.

pub fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for IcSsSclHcnt

impl Default for IcSsSclHcnt

fn default() -> IcSsSclHcnt

Returns the “default value” for a type.