rp2040_pac::pio0

Module ctrl

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Expand description

PIO control register

Structs§

Type Aliases§

  • CLKDIV_RESTART_R
    Field CLKDIV_RESTART reader - Restart a state machine’s clock divider from an initial phase of 0. Clock dividers are free-running, so once started, their output (including fractional jitter) is completely determined by the integer/fractional divisor configured in SMx_CLKDIV. This means that, if multiple clock dividers with the same divisor are restarted simultaneously, by writing multiple 1 bits to this field, the execution clocks of those state machines will run in precise lockstep.
  • CLKDIV_RESTART_W
    Field CLKDIV_RESTART writer - Restart a state machine’s clock divider from an initial phase of 0. Clock dividers are free-running, so once started, their output (including fractional jitter) is completely determined by the integer/fractional divisor configured in SMx_CLKDIV. This means that, if multiple clock dividers with the same divisor are restarted simultaneously, by writing multiple 1 bits to this field, the execution clocks of those state machines will run in precise lockstep.
  • R
    Register CTRL reader
  • SM_ENABLE_R
    Field SM_ENABLE reader - Enable/disable each of the four state machines by writing 1/0 to each of these four bits. When disabled, a state machine will cease executing instructions, except those written directly to SMx_INSTR by the system. Multiple bits can be set/cleared at once to run/halt multiple state machines simultaneously.
  • SM_ENABLE_W
    Field SM_ENABLE writer - Enable/disable each of the four state machines by writing 1/0 to each of these four bits. When disabled, a state machine will cease executing instructions, except those written directly to SMx_INSTR by the system. Multiple bits can be set/cleared at once to run/halt multiple state machines simultaneously.
  • SM_RESTART_R
    Field SM_RESTART reader - Write 1 to instantly clear internal SM state which may be otherwise difficult to access and will affect future execution.
  • SM_RESTART_W
    Field SM_RESTART writer - Write 1 to instantly clear internal SM state which may be otherwise difficult to access and will affect future execution.
  • W
    Register CTRL writer