Struct stm32_metapac::sdmmc::regs::Clkcr

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

The SDMMC_CLKCR register controls the SDMMC_CK output clock, the SDMMC_RX_CLK receive clock, and the bus width.

Tuple Fields

0: u32

Implementations

impl Clkcr

pub const fn clkdiv(&self) -> u16

Clock divide factor This bit can only be written when the CPSM and DPSM are not active (CPSMACT = 0 and DPSMACT = 0). This field defines the divide factor between the input clock (SDMMCCLK) and the output clock (SDMMC_CK): SDMMC_CK frequency = SDMMCCLK / [2 * CLKDIV]. 0xx: etc.. xxx: etc..

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

Clock divide factor This bit can only be written when the CPSM and DPSM are not active (CPSMACT = 0 and DPSMACT = 0). This field defines the divide factor between the input clock (SDMMCCLK) and the output clock (SDMMC_CK): SDMMC_CK frequency = SDMMCCLK / [2 * CLKDIV]. 0xx: etc.. xxx: etc..

pub const fn pwrsav(&self) -> bool

Power saving configuration bit This bit can only be written when the CPSM and DPSM are not active (CPSMACT = 0 and DPSMACT = 0) For power saving, the SDMMC_CK clock output can be disabled when the bus is idle by setting PWRSAV:

pub fn set_pwrsav(&mut self, val: bool)

Power saving configuration bit This bit can only be written when the CPSM and DPSM are not active (CPSMACT = 0 and DPSMACT = 0) For power saving, the SDMMC_CK clock output can be disabled when the bus is idle by setting PWRSAV:

pub const fn widbus(&self) -> u8

Wide bus mode enable bit This bit can only be written when the CPSM and DPSM are not active (CPSMACT = 0 and DPSMACT = 0)

pub fn set_widbus(&mut self, val: u8)

Wide bus mode enable bit This bit can only be written when the CPSM and DPSM are not active (CPSMACT = 0 and DPSMACT = 0)

pub const fn negedge(&self) -> bool

SDMMC_CK dephasing selection bit for data and Command. This bit can only be written when the CPSM and DPSM are not active (CPSMACT = 0 and DPSMACT = 0). When clock division = 1 (CLKDIV = 0), this bit has no effect. Data and Command change on SDMMC_CK falling edge. When clock division >1 (CLKDIV > 0) & DDR = 0: - SDMMC_CK edge occurs on SDMMCCLK rising edge. When clock division >1 (CLKDIV > 0) & DDR = 1: - Data changed on the SDMMCCLK falling edge succeeding a SDMMC_CK edge. - SDMMC_CK edge occurs on SDMMCCLK rising edge. - Data changed on the SDMMC_CK falling edge succeeding a SDMMC_CK edge. - SDMMC_CK edge occurs on SDMMCCLK rising edge.

pub fn set_negedge(&mut self, val: bool)

SDMMC_CK dephasing selection bit for data and Command. This bit can only be written when the CPSM and DPSM are not active (CPSMACT = 0 and DPSMACT = 0). When clock division = 1 (CLKDIV = 0), this bit has no effect. Data and Command change on SDMMC_CK falling edge. When clock division >1 (CLKDIV > 0) & DDR = 0: - SDMMC_CK edge occurs on SDMMCCLK rising edge. When clock division >1 (CLKDIV > 0) & DDR = 1: - Data changed on the SDMMCCLK falling edge succeeding a SDMMC_CK edge. - SDMMC_CK edge occurs on SDMMCCLK rising edge. - Data changed on the SDMMC_CK falling edge succeeding a SDMMC_CK edge. - SDMMC_CK edge occurs on SDMMCCLK rising edge.

pub const fn hwfc_en(&self) -> bool

Hardware flow control enable This bit can only be written when the CPSM and DPSM are not active (CPSMACT = 0 and DPSMACT = 0) When Hardware flow control is enabled, the meaning of the TXFIFOE and RXFIFOF flags change, please see SDMMC status register definition in Section56.8.11.

pub fn set_hwfc_en(&mut self, val: bool)

Hardware flow control enable This bit can only be written when the CPSM and DPSM are not active (CPSMACT = 0 and DPSMACT = 0) When Hardware flow control is enabled, the meaning of the TXFIFOE and RXFIFOF flags change, please see SDMMC status register definition in Section56.8.11.

pub const fn ddr(&self) -> bool

Data rate signaling selection This bit can only be written when the CPSM and DPSM are not active (CPSMACT = 0 and DPSMACT = 0) DDR rate shall only be selected with 4-bit or 8-bit wide bus mode. (WIDBUS > 00). DDR = 1 has no effect when WIDBUS = 00 (1-bit wide bus). DDR rate shall only be selected with clock division >1. (CLKDIV > 0)

pub fn set_ddr(&mut self, val: bool)

Data rate signaling selection This bit can only be written when the CPSM and DPSM are not active (CPSMACT = 0 and DPSMACT = 0) DDR rate shall only be selected with 4-bit or 8-bit wide bus mode. (WIDBUS > 00). DDR = 1 has no effect when WIDBUS = 00 (1-bit wide bus). DDR rate shall only be selected with clock division >1. (CLKDIV > 0)

pub const fn busspeed(&self) -> bool

Bus speed mode selection between DS, HS, SDR12, SDR25 and SDR50, DDR50, SDR104. This bit can only be written when the CPSM and DPSM are not active (CPSMACT = 0 and DPSMACT = 0)

pub fn set_busspeed(&mut self, val: bool)

Bus speed mode selection between DS, HS, SDR12, SDR25 and SDR50, DDR50, SDR104. This bit can only be written when the CPSM and DPSM are not active (CPSMACT = 0 and DPSMACT = 0)

pub const fn selclkrx(&self) -> u8

Receive clock selection. These bits can only be written when the CPSM and DPSM are not active (CPSMACT = 0 and DPSMACT = 0)

pub fn set_selclkrx(&mut self, val: u8)

Receive clock selection. These bits can only be written when the CPSM and DPSM are not active (CPSMACT = 0 and DPSMACT = 0)

Trait Implementations

impl Clone for Clkcr

fn clone(&self) -> Clkcr

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Default for Clkcr

fn default() -> Clkcr

Returns the “default value” for a type.

impl PartialEq for Clkcr

fn eq(&self, other: &Clkcr) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Clkcr

impl Eq for Clkcr

impl StructuralEq for Clkcr

impl StructuralPartialEq for Clkcr