Module esp32c6::lp_i2c0::i2c_sr

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Expand description

Describe I2C work status.

Structs

Type Definitions

  • I2C_ARB_LOST_R
    Field I2C_ARB_LOST reader - When the I2C controller loses control of SCL line, this register changes to 1.
  • I2C_BUS_BUSY_R
    Field I2C_BUS_BUSY reader - 1: the I2C bus is busy transferring data, 0: the I2C bus is in idle state.
  • I2C_RESP_REC_R
    Field I2C_RESP_REC reader - The received ACK value in master mode or slave mode. 0: ACK, 1: NACK.
  • I2C_RXFIFO_CNT_R
    Field I2C_RXFIFO_CNT reader - This field represents the amount of data needed to be sent.
  • I2C_SCL_MAIN_STATE_LAST_R
    Field I2C_SCL_MAIN_STATE_LAST reader - This field indicates the states of the I2C module state machine. 0: Idle, 1: Address shift, 2: ACK address, 3: Rx data, 4: Tx data, 5: Send ACK, 6: Wait ACK
  • I2C_SCL_STATE_LAST_R
    Field I2C_SCL_STATE_LAST reader - This field indicates the states of the state machine used to produce SCL. 0: Idle, 1: Start, 2: Negative edge, 3: Low, 4: Positive edge, 5: High, 6: Stop
  • I2C_TXFIFO_CNT_R
    Field I2C_TXFIFO_CNT reader - This field stores the amount of received data in RAM.