Enum rp2040_pac::dma::ch::ch_al3_ctrl::TREQ_SEL_A

#[repr(u8)]
pub enum TREQ_SEL_A {
    PIO0_TX0 = 0,
    PIO0_TX1 = 1,
    PIO0_TX2 = 2,
    PIO0_TX3 = 3,
    PIO0_RX0 = 4,
    PIO0_RX1 = 5,
    PIO0_RX2 = 6,
    PIO0_RX3 = 7,
    PIO1_TX0 = 8,
    PIO1_TX1 = 9,
    PIO1_TX2 = 10,
    PIO1_TX3 = 11,
    PIO1_RX0 = 12,
    PIO1_RX1 = 13,
    PIO1_RX2 = 14,
    PIO1_RX3 = 15,
    SPI0_TX = 16,
    SPI0_RX = 17,
    SPI1_TX = 18,
    SPI1_RX = 19,
    UART0_TX = 20,
    UART0_RX = 21,
    UART1_TX = 22,
    UART1_RX = 23,
    PWM_WRAP0 = 24,
    PWM_WRAP1 = 25,
    PWM_WRAP2 = 26,
    PWM_WRAP3 = 27,
    PWM_WRAP4 = 28,
    PWM_WRAP5 = 29,
    PWM_WRAP6 = 30,
    PWM_WRAP7 = 31,
    I2C0_TX = 32,
    I2C0_RX = 33,
    I2C1_TX = 34,
    I2C1_RX = 35,
    ADC = 36,
    XIP_STREAM = 37,
    XIP_SSITX = 38,
    XIP_SSIRX = 39,
    TIMER0 = 59,
    TIMER1 = 60,
    TIMER2 = 61,
    TIMER3 = 62,
    PERMANENT = 63,
}

Select a Transfer Request signal.
The channel uses the transfer request signal to pace its data transfer rate. Sources for TREQ signals are internal (TIMERS) or external (DREQ, a Data Request from the system).
0x0 to 0x3a -> select DREQ n as TREQ

Value on reset: 0

Variants

PIO0_TX0 = 0

0: Select PIO0’s TX FIFO 0 as TREQ

PIO0_TX1 = 1

1: Select PIO0’s TX FIFO 1 as TREQ

PIO0_TX2 = 2

2: Select PIO0’s TX FIFO 2 as TREQ

PIO0_TX3 = 3

3: Select PIO0’s TX FIFO 3 as TREQ

PIO0_RX0 = 4

4: Select PIO0’s RX FIFO 0 as TREQ

PIO0_RX1 = 5

5: Select PIO0’s RX FIFO 1 as TREQ

PIO0_RX2 = 6

6: Select PIO0’s RX FIFO 2 as TREQ

PIO0_RX3 = 7

7: Select PIO0’s RX FIFO 3 as TREQ

PIO1_TX0 = 8

8: Select PIO1’s TX FIFO 0 as TREQ

PIO1_TX1 = 9

9: Select PIO1’s TX FIFO 1 as TREQ

PIO1_TX2 = 10

10: Select PIO1’s TX FIFO 2 as TREQ

PIO1_TX3 = 11

11: Select PIO1’s TX FIFO 3 as TREQ

PIO1_RX0 = 12

12: Select PIO1’s RX FIFO 0 as TREQ

PIO1_RX1 = 13

13: Select PIO1’s RX FIFO 1 as TREQ

PIO1_RX2 = 14

14: Select PIO1’s RX FIFO 2 as TREQ

PIO1_RX3 = 15

15: Select PIO1’s RX FIFO 3 as TREQ

SPI0_TX = 16

16: Select SPI0’s TX FIFO as TREQ

SPI0_RX = 17

17: Select SPI0’s RX FIFO as TREQ

SPI1_TX = 18

18: Select SPI1’s TX FIFO as TREQ

SPI1_RX = 19

19: Select SPI1’s RX FIFO as TREQ

UART0_TX = 20

20: Select UART0’s TX FIFO as TREQ

UART0_RX = 21

21: Select UART0’s RX FIFO as TREQ

UART1_TX = 22

22: Select UART1’s TX FIFO as TREQ

UART1_RX = 23

23: Select UART1’s RX FIFO as TREQ

PWM_WRAP0 = 24

24: Select PWM Counter 0’s Wrap Value as TREQ

PWM_WRAP1 = 25

25: Select PWM Counter 1’s Wrap Value as TREQ

PWM_WRAP2 = 26

26: Select PWM Counter 2’s Wrap Value as TREQ

PWM_WRAP3 = 27

27: Select PWM Counter 3’s Wrap Value as TREQ

PWM_WRAP4 = 28

28: Select PWM Counter 4’s Wrap Value as TREQ

PWM_WRAP5 = 29

29: Select PWM Counter 5’s Wrap Value as TREQ

PWM_WRAP6 = 30

30: Select PWM Counter 6’s Wrap Value as TREQ

PWM_WRAP7 = 31

31: Select PWM Counter 7’s Wrap Value as TREQ

I2C0_TX = 32

32: Select I2C0’s TX FIFO as TREQ

I2C0_RX = 33

33: Select I2C0’s RX FIFO as TREQ

I2C1_TX = 34

34: Select I2C1’s TX FIFO as TREQ

I2C1_RX = 35

35: Select I2C1’s RX FIFO as TREQ

ADC = 36

36: Select the ADC as TREQ

XIP_STREAM = 37

37: Select the XIP Streaming FIFO as TREQ

XIP_SSITX = 38

38: Select the XIP SSI TX FIFO as TREQ

XIP_SSIRX = 39

39: Select the XIP SSI RX FIFO as TREQ

TIMER0 = 59

59: Select Timer 0 as TREQ

TIMER1 = 60

60: Select Timer 1 as TREQ

TIMER2 = 61

61: Select Timer 2 as TREQ (Optional)

TIMER3 = 62

62: Select Timer 3 as TREQ (Optional)

PERMANENT = 63

63: Permanent request, for unpaced transfers.

Trait Implementations

impl Clone for TREQ_SEL_A

fn clone(&self) -> TREQ_SEL_A

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for TREQ_SEL_A

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl FieldSpec for TREQ_SEL_A

type Ux = u8

Raw field type (u8, u16, u32, …).

impl From<TREQ_SEL_A> for u8

fn from(variant: TREQ_SEL_A) -> Self

Converts to this type from the input type.

impl PartialEq for TREQ_SEL_A

fn eq(&self, other: &TREQ_SEL_A) -> 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 TREQ_SEL_A

impl Eq for TREQ_SEL_A

impl StructuralPartialEq for TREQ_SEL_A