rp2040_pac

Module dma

source
Expand description

DMA with separate read and write masters

Re-exports§

  • pub use self::ch::CH;

Modules§

  • Cluster Cluster CH%s, containing CH?_READ_ADDR,CH??_READ_ADDR, CH?_WRITE_ADDR,CH??_WRITE_ADDR, CH?_TRANS_COUNT,CH??_TRANS_COUNT, CH?_CTRL_TRIG,CH??_CTRL_TRIG, CH?_AL1_CTRL,CH??_AL1_CTRL, CH?_AL1_READ_ADDR,CH??_AL1_READ_ADDR, CH?_AL1_WRITE_ADDR,CH??_AL1_WRITE_ADDR, CH?_AL1_TRANS_COUNT_TRIG,CH??_AL1_TRANS_COUNT_TRIG, CH?_AL2_CTRL,CH??_AL2_CTRL, CH?_AL2_TRANS_COUNT,CH??_AL2_TRANS_COUNT, CH?_AL2_READ_ADDR,CH??_AL2_READ_ADDR, CH?_AL2_WRITE_ADDR_TRIG,CH??_AL2_WRITE_ADDR_TRIG, CH?_AL3_CTRL,CH??_AL3_CTRL, CH?_AL3_WRITE_ADDR,CH??_AL3_WRITE_ADDR, CH?_AL3_TRANS_COUNT,CH??_AL3_TRANS_COUNT, CH?_AL3_READ_ADDR_TRIG,CH??_AL3_READ_ADDR_TRIG
  • Read: get channel DREQ counter (i.e. how many accesses the DMA expects it can perform on the peripheral without overflow/underflow. Write any value: clears the counter, and cause channel to re-initiate DREQ handshake.
  • Read to get channel TRANS_COUNT reload value, i.e. the length of the next transfer
  • Read: get channel DREQ counter (i.e. how many accesses the DMA expects it can perform on the peripheral without overflow/underflow. Write any value: clears the counter, and cause channel to re-initiate DREQ handshake.
  • Read to get channel TRANS_COUNT reload value, i.e. the length of the next transfer
  • Read: get channel DREQ counter (i.e. how many accesses the DMA expects it can perform on the peripheral without overflow/underflow. Write any value: clears the counter, and cause channel to re-initiate DREQ handshake.
  • Read to get channel TRANS_COUNT reload value, i.e. the length of the next transfer
  • Read: get channel DREQ counter (i.e. how many accesses the DMA expects it can perform on the peripheral without overflow/underflow. Write any value: clears the counter, and cause channel to re-initiate DREQ handshake.
  • Read to get channel TRANS_COUNT reload value, i.e. the length of the next transfer
  • Read: get channel DREQ counter (i.e. how many accesses the DMA expects it can perform on the peripheral without overflow/underflow. Write any value: clears the counter, and cause channel to re-initiate DREQ handshake.
  • Read to get channel TRANS_COUNT reload value, i.e. the length of the next transfer
  • Read: get channel DREQ counter (i.e. how many accesses the DMA expects it can perform on the peripheral without overflow/underflow. Write any value: clears the counter, and cause channel to re-initiate DREQ handshake.
  • Read to get channel TRANS_COUNT reload value, i.e. the length of the next transfer
  • Read: get channel DREQ counter (i.e. how many accesses the DMA expects it can perform on the peripheral without overflow/underflow. Write any value: clears the counter, and cause channel to re-initiate DREQ handshake.
  • Read to get channel TRANS_COUNT reload value, i.e. the length of the next transfer
  • Read: get channel DREQ counter (i.e. how many accesses the DMA expects it can perform on the peripheral without overflow/underflow. Write any value: clears the counter, and cause channel to re-initiate DREQ handshake.
  • Read to get channel TRANS_COUNT reload value, i.e. the length of the next transfer
  • Read: get channel DREQ counter (i.e. how many accesses the DMA expects it can perform on the peripheral without overflow/underflow. Write any value: clears the counter, and cause channel to re-initiate DREQ handshake.
  • Read to get channel TRANS_COUNT reload value, i.e. the length of the next transfer
  • Read: get channel DREQ counter (i.e. how many accesses the DMA expects it can perform on the peripheral without overflow/underflow. Write any value: clears the counter, and cause channel to re-initiate DREQ handshake.
  • Read to get channel TRANS_COUNT reload value, i.e. the length of the next transfer
  • Read: get channel DREQ counter (i.e. how many accesses the DMA expects it can perform on the peripheral without overflow/underflow. Write any value: clears the counter, and cause channel to re-initiate DREQ handshake.
  • Read to get channel TRANS_COUNT reload value, i.e. the length of the next transfer
  • Read: get channel DREQ counter (i.e. how many accesses the DMA expects it can perform on the peripheral without overflow/underflow. Write any value: clears the counter, and cause channel to re-initiate DREQ handshake.
  • Read to get channel TRANS_COUNT reload value, i.e. the length of the next transfer
  • Abort an in-progress transfer sequence on one or more channels
  • Debug RAF, WAF, TDF levels
  • Interrupt Enables for IRQ 0
  • Interrupt Enables for IRQ 1
  • Force Interrupts
  • Force Interrupts for IRQ 1
  • Interrupt Status (raw)
  • Interrupt Status for IRQ 0
  • Interrupt Status (masked) for IRQ 1
  • Trigger one or more channels simultaneously
  • The number of channels this DMA instance is equipped with. This DMA supports up to 16 hardware channels, but can be configured with as few as one, to minimise silicon area.
  • Sniffer Control
  • Data accumulator for sniff hardware
    Write an initial seed value here before starting a DMA transfer on the channel indicated by SNIFF_CTRL_DMACH. The hardware will update this register each time it observes a read from the indicated channel. Once the channel completes, the final result can be read from this register.
  • Pacing (X/Y) Fractional Timer
    The pacing timer produces TREQ assertions at a rate set by ((X/Y) * sys_clk). This equation is evaluated every sys_clk cycles and therefore can only generate TREQs at a rate of 1 per sys_clk (i.e. permanent TREQ) or less.
  • Pacing (X/Y) Fractional Timer
    The pacing timer produces TREQ assertions at a rate set by ((X/Y) * sys_clk). This equation is evaluated every sys_clk cycles and therefore can only generate TREQs at a rate of 1 per sys_clk (i.e. permanent TREQ) or less.
  • Pacing (X/Y) Fractional Timer
    The pacing timer produces TREQ assertions at a rate set by ((X/Y) * sys_clk). This equation is evaluated every sys_clk cycles and therefore can only generate TREQs at a rate of 1 per sys_clk (i.e. permanent TREQ) or less.
  • Pacing (X/Y) Fractional Timer
    The pacing timer produces TREQ assertions at a rate set by ((X/Y) * sys_clk). This equation is evaluated every sys_clk cycles and therefore can only generate TREQs at a rate of 1 per sys_clk (i.e. permanent TREQ) or less.

Structs§

Type Aliases§

  • CH0_DBG_CTDREQ (rw) register accessor: Read: get channel DREQ counter (i.e. how many accesses the DMA expects it can perform on the peripheral without overflow/underflow. Write any value: clears the counter, and cause channel to re-initiate DREQ handshake.
  • CH0_DBG_TCR (r) register accessor: Read to get channel TRANS_COUNT reload value, i.e. the length of the next transfer
  • CH1_DBG_CTDREQ (rw) register accessor: Read: get channel DREQ counter (i.e. how many accesses the DMA expects it can perform on the peripheral without overflow/underflow. Write any value: clears the counter, and cause channel to re-initiate DREQ handshake.
  • CH1_DBG_TCR (r) register accessor: Read to get channel TRANS_COUNT reload value, i.e. the length of the next transfer
  • CH2_DBG_CTDREQ (rw) register accessor: Read: get channel DREQ counter (i.e. how many accesses the DMA expects it can perform on the peripheral without overflow/underflow. Write any value: clears the counter, and cause channel to re-initiate DREQ handshake.
  • CH2_DBG_TCR (r) register accessor: Read to get channel TRANS_COUNT reload value, i.e. the length of the next transfer
  • CH3_DBG_CTDREQ (rw) register accessor: Read: get channel DREQ counter (i.e. how many accesses the DMA expects it can perform on the peripheral without overflow/underflow. Write any value: clears the counter, and cause channel to re-initiate DREQ handshake.
  • CH3_DBG_TCR (r) register accessor: Read to get channel TRANS_COUNT reload value, i.e. the length of the next transfer
  • CH4_DBG_CTDREQ (rw) register accessor: Read: get channel DREQ counter (i.e. how many accesses the DMA expects it can perform on the peripheral without overflow/underflow. Write any value: clears the counter, and cause channel to re-initiate DREQ handshake.
  • CH4_DBG_TCR (r) register accessor: Read to get channel TRANS_COUNT reload value, i.e. the length of the next transfer
  • CH5_DBG_CTDREQ (rw) register accessor: Read: get channel DREQ counter (i.e. how many accesses the DMA expects it can perform on the peripheral without overflow/underflow. Write any value: clears the counter, and cause channel to re-initiate DREQ handshake.
  • CH5_DBG_TCR (r) register accessor: Read to get channel TRANS_COUNT reload value, i.e. the length of the next transfer
  • CH6_DBG_CTDREQ (rw) register accessor: Read: get channel DREQ counter (i.e. how many accesses the DMA expects it can perform on the peripheral without overflow/underflow. Write any value: clears the counter, and cause channel to re-initiate DREQ handshake.
  • CH6_DBG_TCR (r) register accessor: Read to get channel TRANS_COUNT reload value, i.e. the length of the next transfer
  • CH7_DBG_CTDREQ (rw) register accessor: Read: get channel DREQ counter (i.e. how many accesses the DMA expects it can perform on the peripheral without overflow/underflow. Write any value: clears the counter, and cause channel to re-initiate DREQ handshake.
  • CH7_DBG_TCR (r) register accessor: Read to get channel TRANS_COUNT reload value, i.e. the length of the next transfer
  • CH8_DBG_CTDREQ (rw) register accessor: Read: get channel DREQ counter (i.e. how many accesses the DMA expects it can perform on the peripheral without overflow/underflow. Write any value: clears the counter, and cause channel to re-initiate DREQ handshake.
  • CH8_DBG_TCR (r) register accessor: Read to get channel TRANS_COUNT reload value, i.e. the length of the next transfer
  • CH9_DBG_CTDREQ (rw) register accessor: Read: get channel DREQ counter (i.e. how many accesses the DMA expects it can perform on the peripheral without overflow/underflow. Write any value: clears the counter, and cause channel to re-initiate DREQ handshake.
  • CH9_DBG_TCR (r) register accessor: Read to get channel TRANS_COUNT reload value, i.e. the length of the next transfer
  • CH10_DBG_CTDREQ (rw) register accessor: Read: get channel DREQ counter (i.e. how many accesses the DMA expects it can perform on the peripheral without overflow/underflow. Write any value: clears the counter, and cause channel to re-initiate DREQ handshake.
  • CH10_DBG_TCR (r) register accessor: Read to get channel TRANS_COUNT reload value, i.e. the length of the next transfer
  • CH11_DBG_CTDREQ (rw) register accessor: Read: get channel DREQ counter (i.e. how many accesses the DMA expects it can perform on the peripheral without overflow/underflow. Write any value: clears the counter, and cause channel to re-initiate DREQ handshake.
  • CH11_DBG_TCR (r) register accessor: Read to get channel TRANS_COUNT reload value, i.e. the length of the next transfer
  • CHAN_ABORT (rw) register accessor: Abort an in-progress transfer sequence on one or more channels
  • FIFO_LEVELS (r) register accessor: Debug RAF, WAF, TDF levels
  • INTE0 (rw) register accessor: Interrupt Enables for IRQ 0
  • INTE1 (rw) register accessor: Interrupt Enables for IRQ 1
  • INTF0 (rw) register accessor: Force Interrupts
  • INTF1 (rw) register accessor: Force Interrupts for IRQ 1
  • INTR (rw) register accessor: Interrupt Status (raw)
  • INTS0 (rw) register accessor: Interrupt Status for IRQ 0
  • INTS1 (rw) register accessor: Interrupt Status (masked) for IRQ 1
  • MULTI_CHAN_TRIGGER (rw) register accessor: Trigger one or more channels simultaneously
  • N_CHANNELS (r) register accessor: The number of channels this DMA instance is equipped with. This DMA supports up to 16 hardware channels, but can be configured with as few as one, to minimise silicon area.
  • SNIFF_CTRL (rw) register accessor: Sniffer Control
  • SNIFF_DATA (rw) register accessor: Data accumulator for sniff hardware
    Write an initial seed value here before starting a DMA transfer on the channel indicated by SNIFF_CTRL_DMACH. The hardware will update this register each time it observes a read from the indicated channel. Once the channel completes, the final result can be read from this register.
  • TIMER0 (rw) register accessor: Pacing (X/Y) Fractional Timer
    The pacing timer produces TREQ assertions at a rate set by ((X/Y) * sys_clk). This equation is evaluated every sys_clk cycles and therefore can only generate TREQs at a rate of 1 per sys_clk (i.e. permanent TREQ) or less.
  • TIMER1 (rw) register accessor: Pacing (X/Y) Fractional Timer
    The pacing timer produces TREQ assertions at a rate set by ((X/Y) * sys_clk). This equation is evaluated every sys_clk cycles and therefore can only generate TREQs at a rate of 1 per sys_clk (i.e. permanent TREQ) or less.
  • TIMER2 (rw) register accessor: Pacing (X/Y) Fractional Timer
    The pacing timer produces TREQ assertions at a rate set by ((X/Y) * sys_clk). This equation is evaluated every sys_clk cycles and therefore can only generate TREQs at a rate of 1 per sys_clk (i.e. permanent TREQ) or less.
  • TIMER3 (rw) register accessor: Pacing (X/Y) Fractional Timer
    The pacing timer produces TREQ assertions at a rate set by ((X/Y) * sys_clk). This equation is evaluated every sys_clk cycles and therefore can only generate TREQs at a rate of 1 per sys_clk (i.e. permanent TREQ) or less.