rp2040_pac/i2c0/
ic_sda_setup.rs

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1#[doc = "Register `IC_SDA_SETUP` reader"]
2pub type R = crate::R<IC_SDA_SETUP_SPEC>;
3#[doc = "Register `IC_SDA_SETUP` writer"]
4pub type W = crate::W<IC_SDA_SETUP_SPEC>;
5#[doc = "Field `SDA_SETUP` reader - SDA Setup. It is recommended that if the required delay is 1000ns, then for an ic_clk frequency of 10 MHz, IC_SDA_SETUP should be programmed to a value of 11. IC_SDA_SETUP must be programmed with a minimum value of 2."]
6pub type SDA_SETUP_R = crate::FieldReader;
7#[doc = "Field `SDA_SETUP` writer - SDA Setup. It is recommended that if the required delay is 1000ns, then for an ic_clk frequency of 10 MHz, IC_SDA_SETUP should be programmed to a value of 11. IC_SDA_SETUP must be programmed with a minimum value of 2."]
8pub type SDA_SETUP_W<'a, REG> = crate::FieldWriter<'a, REG, 8>;
9impl R {
10    #[doc = "Bits 0:7 - SDA Setup. It is recommended that if the required delay is 1000ns, then for an ic_clk frequency of 10 MHz, IC_SDA_SETUP should be programmed to a value of 11. IC_SDA_SETUP must be programmed with a minimum value of 2."]
11    #[inline(always)]
12    pub fn sda_setup(&self) -> SDA_SETUP_R {
13        SDA_SETUP_R::new((self.bits & 0xff) as u8)
14    }
15}
16impl W {
17    #[doc = "Bits 0:7 - SDA Setup. It is recommended that if the required delay is 1000ns, then for an ic_clk frequency of 10 MHz, IC_SDA_SETUP should be programmed to a value of 11. IC_SDA_SETUP must be programmed with a minimum value of 2."]
18    #[inline(always)]
19    #[must_use]
20    pub fn sda_setup(&mut self) -> SDA_SETUP_W<IC_SDA_SETUP_SPEC> {
21        SDA_SETUP_W::new(self, 0)
22    }
23    #[doc = r" Writes raw bits to the register."]
24    #[doc = r""]
25    #[doc = r" # Safety"]
26    #[doc = r""]
27    #[doc = r" Passing incorrect value can cause undefined behaviour. See reference manual"]
28    #[inline(always)]
29    pub unsafe fn bits(&mut self, bits: u32) -> &mut Self {
30        self.bits = bits;
31        self
32    }
33}
34#[doc = "I2C SDA Setup Register  
35
36 This register controls the amount of time delay (in terms of number of ic_clk clock periods) introduced in the rising edge of SCL - relative to SDA changing - when DW_apb_i2c services a read request in a slave-transmitter operation. The relevant I2C requirement is tSU:DAT (note 4) as detailed in the I2C Bus Specification. This register must be programmed with a value equal to or greater than 2.  
37
38 Writes to this register succeed only when IC_ENABLE\\[0\\]
39= 0.  
40
41 Note: The length of setup time is calculated using \\[(IC_SDA_SETUP - 1) * (ic_clk_period)\\], so if the user requires 10 ic_clk periods of setup time, they should program a value of 11. The IC_SDA_SETUP register is only used by the DW_apb_i2c when operating as a slave transmitter.  
42
43You can [`read`](crate::generic::Reg::read) this register and get [`ic_sda_setup::R`](R).  You can [`reset`](crate::generic::Reg::reset), [`write`](crate::generic::Reg::write), [`write_with_zero`](crate::generic::Reg::write_with_zero) this register using [`ic_sda_setup::W`](W). You can also [`modify`](crate::generic::Reg::modify) this register. See [API](https://docs.rs/svd2rust/#read--modify--write-api)."]
44pub struct IC_SDA_SETUP_SPEC;
45impl crate::RegisterSpec for IC_SDA_SETUP_SPEC {
46    type Ux = u32;
47}
48#[doc = "`read()` method returns [`ic_sda_setup::R`](R) reader structure"]
49impl crate::Readable for IC_SDA_SETUP_SPEC {}
50#[doc = "`write(|w| ..)` method takes [`ic_sda_setup::W`](W) writer structure"]
51impl crate::Writable for IC_SDA_SETUP_SPEC {
52    const ZERO_TO_MODIFY_FIELDS_BITMAP: u32 = 0;
53    const ONE_TO_MODIFY_FIELDS_BITMAP: u32 = 0;
54}
55#[doc = "`reset()` method sets IC_SDA_SETUP to value 0x64"]
56impl crate::Resettable for IC_SDA_SETUP_SPEC {
57    const RESET_VALUE: u32 = 0x64;
58}
rp2040_pac/i2c0/ic_sda_setup.rs

rp2040_pac/i2c0/
ic_sda_setup.rs
