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esp-idf/components/soc/esp32h2/include/soc/i2c_struct.h
laokaiyao 330149f3a6 i2c: support i2c on esp32h2
2023-02-01 11:23:11 +08:00

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/**
* SPDX-FileCopyrightText: 2022-2023 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#pragma once
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
/** Group: Timing registers */
/** Type of scl_low_period register
* Configures the low level width of the SCL
* Clock
*/
typedef union {
struct {
/** scl_low_period : R/W; bitpos: [8:0]; default: 0;
* This register is used to configure for how long SCL remains low in master mode, in
* I2C module clock cycles.
*/
uint32_t scl_low_period:9;
uint32_t reserved_9:23;
};
uint32_t val;
} i2c_scl_low_period_reg_t;
/** Type of sda_hold register
* Configures the hold time after a negative SCL edge.
*/
typedef union {
struct {
/** sda_hold_time : R/W; bitpos: [8:0]; default: 0;
* This register is used to configure the time to hold the data after the negative
* edge of SCL, in I2C module clock cycles.
*/
uint32_t sda_hold_time:9;
uint32_t reserved_9:23;
};
uint32_t val;
} i2c_sda_hold_reg_t;
/** Type of sda_sample register
* Configures the sample time after a positive SCL edge.
*/
typedef union {
struct {
/** sda_sample_time : R/W; bitpos: [8:0]; default: 0;
* This register is used to configure for how long SDA is sampled, in I2C module clock
* cycles.
*/
uint32_t sda_sample_time:9;
uint32_t reserved_9:23;
};
uint32_t val;
} i2c_sda_sample_reg_t;
/** Type of scl_high_period register
* Configures the high level width of SCL
*/
typedef union {
struct {
/** scl_high_period : R/W; bitpos: [8:0]; default: 0;
* This register is used to configure for how long SCL remains high in master mode, in
* I2C module clock cycles.
*/
uint32_t scl_high_period:9;
/** scl_wait_high_period : R/W; bitpos: [15:9]; default: 0;
* This register is used to configure for the SCL_FSM's waiting period for SCL high
* level in master mode, in I2C module clock cycles.
*/
uint32_t scl_wait_high_period:7;
uint32_t reserved_16:16;
};
uint32_t val;
} i2c_scl_high_period_reg_t;
/** Type of scl_start_hold register
* Configures the delay between the SDA and SCL negative edge for a start condition
*/
typedef union {
struct {
/** scl_start_hold_time : R/W; bitpos: [8:0]; default: 8;
* This register is used to configure the time between the negative edge
* of SDA and the negative edge of SCL for a START condition, in I2C module clock
* cycles.
*/
uint32_t scl_start_hold_time:9;
uint32_t reserved_9:23;
};
uint32_t val;
} i2c_scl_start_hold_reg_t;
/** Type of scl_rstart_setup register
* Configures the delay between the positive
* edge of SCL and the negative edge of SDA
*/
typedef union {
struct {
/** scl_rstart_setup_time : R/W; bitpos: [8:0]; default: 8;
* This register is used to configure the time between the positive
* edge of SCL and the negative edge of SDA for a RESTART condition, in I2C module
* clock cycles.
*/
uint32_t scl_rstart_setup_time:9;
uint32_t reserved_9:23;
};
uint32_t val;
} i2c_scl_rstart_setup_reg_t;
/** Type of scl_stop_hold register
* Configures the delay after the SCL clock
* edge for a stop condition
*/
typedef union {
struct {
/** scl_stop_hold_time : R/W; bitpos: [8:0]; default: 8;
* This register is used to configure the delay after the STOP condition,
* in I2C module clock cycles.
*/
uint32_t scl_stop_hold_time:9;
uint32_t reserved_9:23;
};
uint32_t val;
} i2c_scl_stop_hold_reg_t;
/** Type of scl_stop_setup register
* Configures the delay between the SDA and
* SCL positive edge for a stop condition
*/
typedef union {
struct {
/** scl_stop_setup_time : R/W; bitpos: [8:0]; default: 8;
* This register is used to configure the time between the positive edge
* of SCL and the positive edge of SDA, in I2C module clock cycles.
*/
uint32_t scl_stop_setup_time:9;
uint32_t reserved_9:23;
};
uint32_t val;
} i2c_scl_stop_setup_reg_t;
/** Type of scl_st_time_out register
* SCL status time out register
*/
typedef union {
struct {
/** scl_st_to_i2c : R/W; bitpos: [4:0]; default: 16;
* The threshold value of SCL_FSM state unchanged period. It should be o more than 23
*/
uint32_t scl_st_to_i2c:5;
uint32_t reserved_5:27;
};
uint32_t val;
} i2c_scl_st_time_out_reg_t;
/** Type of scl_main_st_time_out register
* SCL main status time out register
*/
typedef union {
struct {
/** scl_main_st_to_i2c : R/W; bitpos: [4:0]; default: 16;
* The threshold value of SCL_MAIN_FSM state unchanged period.nIt should be o more
* than 23
*/
uint32_t scl_main_st_to_i2c:5;
uint32_t reserved_5:27;
};
uint32_t val;
} i2c_scl_main_st_time_out_reg_t;
/** Group: Configuration registers */
/** Type of ctr register
* Transmission setting
*/
typedef union {
struct {
/** sda_force_out : R/W; bitpos: [0]; default: 0;
* 1: direct output, 0: open drain output.
*/
uint32_t sda_force_out:1;
/** scl_force_out : R/W; bitpos: [1]; default: 0;
* 1: direct output, 0: open drain output.
*/
uint32_t scl_force_out:1;
/** sample_scl_level : R/W; bitpos: [2]; default: 0;
* This register is used to select the sample mode.
* 1: sample SDA data on the SCL low level.
* 0: sample SDA data on the SCL high level.
*/
uint32_t sample_scl_level:1;
/** rx_full_ack_level : R/W; bitpos: [3]; default: 1;
* This register is used to configure the ACK value that need to sent by master when
* the rx_fifo_cnt has reached the threshold.
*/
uint32_t rx_full_ack_level:1;
/** ms_mode : R/W; bitpos: [4]; default: 0;
* Set this bit to configure the module as an I2C Master. Clear this bit to configure
* the
* module as an I2C Slave.
*/
uint32_t ms_mode:1;
/** trans_start : WT; bitpos: [5]; default: 0;
* Set this bit to start sending the data in txfifo.
*/
uint32_t trans_start:1;
/** tx_lsb_first : R/W; bitpos: [6]; default: 0;
* This bit is used to control the sending mode for data needing to be sent.
* 1: send data from the least significant bit,
* 0: send data from the most significant bit.
*/
uint32_t tx_lsb_first:1;
/** rx_lsb_first : R/W; bitpos: [7]; default: 0;
* This bit is used to control the storage mode for received data.
* 1: receive data from the least significant bit,
* 0: receive data from the most significant bit.
*/
uint32_t rx_lsb_first:1;
/** clk_en : R/W; bitpos: [8]; default: 0;
* Reserved
*/
uint32_t clk_en:1;
/** arbitration_en : R/W; bitpos: [9]; default: 1;
* This is the enable bit for arbitration_lost.
*/
uint32_t arbitration_en:1;
/** fsm_rst : WT; bitpos: [10]; default: 0;
* This register is used to reset the scl FMS.
*/
uint32_t fsm_rst:1;
/** conf_upgate : WT; bitpos: [11]; default: 0;
* synchronization bit
*/
uint32_t conf_upgate:1;
/** slv_tx_auto_start_en : R/W; bitpos: [12]; default: 0;
* This is the enable bit for slave to send data automatically
*/
uint32_t slv_tx_auto_start_en:1;
/** addr_10bit_rw_check_en : R/W; bitpos: [13]; default: 0;
* This is the enable bit to check if the r/w bit of 10bit addressing consists with
* I2C protocol
*/
uint32_t addr_10bit_rw_check_en:1;
/** addr_broadcasting_en : R/W; bitpos: [14]; default: 0;
* This is the enable bit to support the 7bit general call function.
*/
uint32_t addr_broadcasting_en:1;
uint32_t reserved_15:17;
};
uint32_t val;
} i2c_ctr_reg_t;
/** Type of to register
* Setting time out control for receiving data.
*/
typedef union {
struct {
/** time_out_value : R/W; bitpos: [4:0]; default: 16;
* This register is used to configure the timeout for receiving a data bit in APB
* clock cycles.
*/
uint32_t time_out_value:5;
/** time_out_en : R/W; bitpos: [5]; default: 0;
* This is the enable bit for time out control.
*/
uint32_t time_out_en:1;
uint32_t reserved_6:26;
};
uint32_t val;
} i2c_to_reg_t;
/** Type of slave_addr register
* Local slave address setting
*/
typedef union {
struct {
/** slave_addr : R/W; bitpos: [14:0]; default: 0;
* When configured as an I2C Slave, this field is used to configure the slave address.
*/
uint32_t slave_addr:15;
uint32_t reserved_15:16;
/** addr_10bit_en : R/W; bitpos: [31]; default: 0;
* This field is used to enable the slave 10-bit addressing mode in master mode.
*/
uint32_t addr_10bit_en:1;
};
uint32_t val;
} i2c_slave_addr_reg_t;
/** Type of fifo_conf register
* FIFO configuration register.
*/
typedef union {
struct {
/** rxfifo_wm_thrhd : R/W; bitpos: [4:0]; default: 11;
* The water mark threshold of rx FIFO in nonfifo access mode. When
* reg_reg_fifo_prt_en is 1 and rx FIFO counter is bigger than
* reg_rxfifo_wm_thrhd[4:0], reg_rxfifo_wm_int_raw bit will be valid.
*/
uint32_t rxfifo_wm_thrhd:5;
/** txfifo_wm_thrhd : R/W; bitpos: [9:5]; default: 4;
* The water mark threshold of tx FIFO in nonfifo access mode. When
* reg_reg_fifo_prt_en is 1 and tx FIFO counter is smaller than
* reg_txfifo_wm_thrhd[4:0], reg_txfifo_wm_int_raw bit will be valid.
*/
uint32_t txfifo_wm_thrhd:5;
/** nonfifo_en : R/W; bitpos: [10]; default: 0;
* Set this bit to enable APB nonfifo access.
*/
uint32_t nonfifo_en:1;
/** fifo_addr_cfg_en : R/W; bitpos: [11]; default: 0;
* When this bit is set to 1, the byte received after the I2C address byte represents
* the offset address in the I2C Slave RAM.
*/
uint32_t fifo_addr_cfg_en:1;
/** rx_fifo_rst : R/W; bitpos: [12]; default: 0;
* Set this bit to reset rx-fifo.
*/
uint32_t rx_fifo_rst:1;
/** tx_fifo_rst : R/W; bitpos: [13]; default: 0;
* Set this bit to reset tx-fifo.
*/
uint32_t tx_fifo_rst:1;
/** fifo_prt_en : R/W; bitpos: [14]; default: 1;
* The control enable bit of FIFO pointer in non-fifo access mode. This bit controls
* the valid bits and the interrupts of tx/rx_fifo overflow, underflow, full and empty.
*/
uint32_t fifo_prt_en:1;
uint32_t reserved_15:17;
};
uint32_t val;
} i2c_fifo_conf_reg_t;
/** Type of filter_cfg register
* SCL and SDA filter configuration register
*/
typedef union {
struct {
/** scl_filter_thres : R/W; bitpos: [3:0]; default: 0;
* When a pulse on the SCL input has smaller width than this register value
* in I2C module clock cycles, the I2C controller will ignore that pulse.
*/
uint32_t scl_filter_thres:4;
/** sda_filter_thres : R/W; bitpos: [7:4]; default: 0;
* When a pulse on the SDA input has smaller width than this register value
* in I2C module clock cycles, the I2C controller will ignore that pulse.
*/
uint32_t sda_filter_thres:4;
/** scl_filter_en : R/W; bitpos: [8]; default: 1;
* This is the filter enable bit for SCL.
*/
uint32_t scl_filter_en:1;
/** sda_filter_en : R/W; bitpos: [9]; default: 1;
* This is the filter enable bit for SDA.
*/
uint32_t sda_filter_en:1;
uint32_t reserved_10:22;
};
uint32_t val;
} i2c_filter_cfg_reg_t;
/** Type of clk_conf register
* I2C CLK configuration register
*/
typedef union {
struct {
/** sclk_div_num : R/W; bitpos: [7:0]; default: 0;
* the integral part of the fractional divisor for i2c module
*/
uint32_t sclk_div_num:8;
/** sclk_div_a : R/W; bitpos: [13:8]; default: 0;
* the numerator of the fractional part of the fractional divisor for i2c module
*/
uint32_t sclk_div_a:6;
/** sclk_div_b : R/W; bitpos: [19:14]; default: 0;
* the denominator of the fractional part of the fractional divisor for i2c module
*/
uint32_t sclk_div_b:6;
/** sclk_sel : R/W; bitpos: [20]; default: 0;
* The clock selection for i2c module:0-XTAL,1-CLK_8MHz.
*/
uint32_t sclk_sel:1;
/** sclk_active : R/W; bitpos: [21]; default: 1;
* The clock switch for i2c module
*/
uint32_t sclk_active:1;
uint32_t reserved_22:10;
};
uint32_t val;
} i2c_clk_conf_reg_t;
/** Type of scl_sp_conf register
* Power configuration register
*/
typedef union {
struct {
/** scl_rst_slv_en : R/W/SC; bitpos: [0]; default: 0;
* When I2C master is IDLE, set this bit to send out SCL pulses. The number of pulses
* equals to reg_scl_rst_slv_num[4:0].
*/
uint32_t scl_rst_slv_en:1;
/** scl_rst_slv_num : R/W; bitpos: [5:1]; default: 0;
* Configure the pulses of SCL generated in I2C master mode. Valid when
* reg_scl_rst_slv_en is 1.
*/
uint32_t scl_rst_slv_num:5;
/** scl_pd_en : R/W; bitpos: [6]; default: 0;
* The power down enable bit for the I2C output SCL line. 1: Power down. 0: Not power
* down. Set reg_scl_force_out and reg_scl_pd_en to 1 to stretch SCL low.
*/
uint32_t scl_pd_en:1;
/** sda_pd_en : R/W; bitpos: [7]; default: 0;
* The power down enable bit for the I2C output SDA line. 1: Power down. 0: Not power
* down. Set reg_sda_force_out and reg_sda_pd_en to 1 to stretch SDA low.
*/
uint32_t sda_pd_en:1;
uint32_t reserved_8:24;
};
uint32_t val;
} i2c_scl_sp_conf_reg_t;
/** Type of scl_stretch_conf register
* Set SCL stretch of I2C slave
*/
typedef union {
struct {
/** stretch_protect_num : R/W; bitpos: [9:0]; default: 0;
* Configure the period of I2C slave stretching SCL line.
*/
uint32_t stretch_protect_num:10;
/** slave_scl_stretch_en : R/W; bitpos: [10]; default: 0;
* The enable bit for slave SCL stretch function. 1: Enable. 0: Disable. The SCL
* output line will be stretched low when reg_slave_scl_stretch_en is 1 and stretch
* event happens. The stretch cause can be seen in reg_stretch_cause.
*/
uint32_t slave_scl_stretch_en:1;
/** slave_scl_stretch_clr : WT; bitpos: [11]; default: 0;
* Set this bit to clear the I2C slave SCL stretch function.
*/
uint32_t slave_scl_stretch_clr:1;
/** slave_byte_ack_ctl_en : R/W; bitpos: [12]; default: 0;
* The enable bit for slave to control ACK level function.
*/
uint32_t slave_byte_ack_ctl_en:1;
/** slave_byte_ack_lvl : R/W; bitpos: [13]; default: 0;
* Set the ACK level when slave controlling ACK level function enables.
*/
uint32_t slave_byte_ack_lvl:1;
uint32_t reserved_14:18;
};
uint32_t val;
} i2c_scl_stretch_conf_reg_t;
/** Group: Status registers */
/** Type of sr register
* Describe I2C work status.
*/
typedef union {
struct {
/** resp_rec : RO; bitpos: [0]; default: 0;
* The received ACK value in master mode or slave mode. 0: ACK, 1: NACK.
*/
uint32_t resp_rec:1;
/** slave_rw : RO; bitpos: [1]; default: 0;
* When in slave mode, 1: master reads from slave, 0: master writes to slave.
*/
uint32_t slave_rw:1;
uint32_t reserved_2:1;
/** arb_lost : RO; bitpos: [3]; default: 0;
* When the I2C controller loses control of SCL line, this register changes to 1.
*/
uint32_t arb_lost:1;
/** bus_busy : RO; bitpos: [4]; default: 0;
* 1: the I2C bus is busy transferring data, 0: the I2C bus is in idle state.
*/
uint32_t bus_busy:1;
/** slave_addressed : RO; bitpos: [5]; default: 0;
* When configured as an I2C Slave, and the address sent by the master is
* equal to the address of the slave, then this bit will be of high level.
*/
uint32_t slave_addressed:1;
uint32_t reserved_6:2;
/** rxfifo_cnt : RO; bitpos: [13:8]; default: 0;
* This field represents the amount of data needed to be sent.
*/
uint32_t rxfifo_cnt:6;
/** stretch_cause : RO; bitpos: [15:14]; default: 3;
* The cause of stretching SCL low in slave mode. 0: stretching SCL low at the
* beginning of I2C read data state. 1: stretching SCL low when I2C Tx FIFO is empty
* in slave mode. 2: stretching SCL low when I2C Rx FIFO is full in slave mode.
*/
uint32_t stretch_cause:2;
uint32_t reserved_16:2;
/** txfifo_cnt : RO; bitpos: [23:18]; default: 0;
* This field stores the amount of received data in RAM.
*/
uint32_t txfifo_cnt:6;
/** scl_main_state_last : RO; bitpos: [26:24]; default: 0;
* 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
*/
uint32_t scl_main_state_last:3;
uint32_t reserved_27:1;
/** scl_state_last : RO; bitpos: [30:28]; default: 0;
* 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
*/
uint32_t scl_state_last:3;
uint32_t reserved_31:1;
};
uint32_t val;
} i2c_sr_reg_t;
/** Type of fifo_st register
* FIFO status register.
*/
typedef union {
struct {
/** rxfifo_raddr : RO; bitpos: [4:0]; default: 0;
* This is the offset address of the APB reading from rxfifo
*/
uint32_t rxfifo_raddr:5;
/** rxfifo_waddr : RO; bitpos: [9:5]; default: 0;
* This is the offset address of i2c module receiving data and writing to rxfifo.
*/
uint32_t rxfifo_waddr:5;
/** txfifo_raddr : RO; bitpos: [14:10]; default: 0;
* This is the offset address of i2c module reading from txfifo.
*/
uint32_t txfifo_raddr:5;
/** txfifo_waddr : RO; bitpos: [19:15]; default: 0;
* This is the offset address of APB bus writing to txfifo.
*/
uint32_t txfifo_waddr:5;
uint32_t reserved_20:2;
/** slave_rw_point : RO; bitpos: [29:22]; default: 0;
* The received data in I2C slave mode.
*/
uint32_t slave_rw_point:8;
uint32_t reserved_30:2;
};
uint32_t val;
} i2c_fifo_st_reg_t;
/** Type of data register
* Rx FIFO read data.
*/
typedef union {
struct {
/** fifo_rdata : HRO; bitpos: [7:0]; default: 0;
* The value of rx FIFO read data.
*/
uint32_t fifo_rdata:8;
uint32_t reserved_8:24;
};
uint32_t val;
} i2c_data_reg_t;
/** Group: Interrupt registers */
/** Type of int_raw register
* Raw interrupt status
*/
typedef union {
struct {
/** rxfifo_wm_int_raw : R/SS/WTC; bitpos: [0]; default: 0;
* The raw interrupt bit for I2C_RXFIFO_WM_INT interrupt.
*/
uint32_t rxfifo_wm_int_raw:1;
/** txfifo_wm_int_raw : R/SS/WTC; bitpos: [1]; default: 1;
* The raw interrupt bit for I2C_TXFIFO_WM_INT interrupt.
*/
uint32_t txfifo_wm_int_raw:1;
/** rxfifo_ovf_int_raw : R/SS/WTC; bitpos: [2]; default: 0;
* The raw interrupt bit for I2C_RXFIFO_OVF_INT interrupt.
*/
uint32_t rxfifo_ovf_int_raw:1;
/** end_detect_int_raw : R/SS/WTC; bitpos: [3]; default: 0;
* The raw interrupt bit for the I2C_END_DETECT_INT interrupt.
*/
uint32_t end_detect_int_raw:1;
/** byte_trans_done_int_raw : R/SS/WTC; bitpos: [4]; default: 0;
* The raw interrupt bit for the I2C_END_DETECT_INT interrupt.
*/
uint32_t byte_trans_done_int_raw:1;
/** arbitration_lost_int_raw : R/SS/WTC; bitpos: [5]; default: 0;
* The raw interrupt bit for the I2C_ARBITRATION_LOST_INT interrupt.
*/
uint32_t arbitration_lost_int_raw:1;
/** mst_txfifo_udf_int_raw : R/SS/WTC; bitpos: [6]; default: 0;
* The raw interrupt bit for I2C_TRANS_COMPLETE_INT interrupt.
*/
uint32_t mst_txfifo_udf_int_raw:1;
/** trans_complete_int_raw : R/SS/WTC; bitpos: [7]; default: 0;
* The raw interrupt bit for the I2C_TRANS_COMPLETE_INT interrupt.
*/
uint32_t trans_complete_int_raw:1;
/** time_out_int_raw : R/SS/WTC; bitpos: [8]; default: 0;
* The raw interrupt bit for the I2C_TIME_OUT_INT interrupt.
*/
uint32_t time_out_int_raw:1;
/** trans_start_int_raw : R/SS/WTC; bitpos: [9]; default: 0;
* The raw interrupt bit for the I2C_TRANS_START_INT interrupt.
*/
uint32_t trans_start_int_raw:1;
/** nack_int_raw : R/SS/WTC; bitpos: [10]; default: 0;
* The raw interrupt bit for I2C_SLAVE_STRETCH_INT interrupt.
*/
uint32_t nack_int_raw:1;
/** txfifo_ovf_int_raw : R/SS/WTC; bitpos: [11]; default: 0;
* The raw interrupt bit for I2C_TXFIFO_OVF_INT interrupt.
*/
uint32_t txfifo_ovf_int_raw:1;
/** rxfifo_udf_int_raw : R/SS/WTC; bitpos: [12]; default: 0;
* The raw interrupt bit for I2C_RXFIFO_UDF_INT interrupt.
*/
uint32_t rxfifo_udf_int_raw:1;
/** scl_st_to_int_raw : R/SS/WTC; bitpos: [13]; default: 0;
* The raw interrupt bit for I2C_SCL_ST_TO_INT interrupt.
*/
uint32_t scl_st_to_int_raw:1;
/** scl_main_st_to_int_raw : R/SS/WTC; bitpos: [14]; default: 0;
* The raw interrupt bit for I2C_SCL_MAIN_ST_TO_INT interrupt.
*/
uint32_t scl_main_st_to_int_raw:1;
/** det_start_int_raw : R/SS/WTC; bitpos: [15]; default: 0;
* The raw interrupt bit for I2C_DET_START_INT interrupt.
*/
uint32_t det_start_int_raw:1;
/** slave_stretch_int_raw : R/SS/WTC; bitpos: [16]; default: 0;
* The raw interrupt bit for I2C_SLAVE_STRETCH_INT interrupt.
*/
uint32_t slave_stretch_int_raw:1;
/** general_call_int_raw : R/SS/WTC; bitpos: [17]; default: 0;
* The raw interrupt bit for I2C_GENARAL_CALL_INT interrupt.
*/
uint32_t general_call_int_raw:1;
/** slave_addr_unmatch_int_raw : R/SS/WTC; bitpos: [18]; default: 0;
* The raw interrupt bit for I2C_SLAVE_ADDR_UNMATCH_INT_RAW interrupt.
*/
uint32_t slave_addr_unmatch_int_raw:1;
uint32_t reserved_19:13;
};
uint32_t val;
} i2c_int_raw_reg_t;
/** Type of int_clr register
* Interrupt clear bits
*/
typedef union {
struct {
/** rxfifo_wm_int_clr : WT; bitpos: [0]; default: 0;
* Set this bit to clear I2C_RXFIFO_WM_INT interrupt.
*/
uint32_t rxfifo_wm_int_clr:1;
/** txfifo_wm_int_clr : WT; bitpos: [1]; default: 0;
* Set this bit to clear I2C_TXFIFO_WM_INT interrupt.
*/
uint32_t txfifo_wm_int_clr:1;
/** rxfifo_ovf_int_clr : WT; bitpos: [2]; default: 0;
* Set this bit to clear I2C_RXFIFO_OVF_INT interrupt.
*/
uint32_t rxfifo_ovf_int_clr:1;
/** end_detect_int_clr : WT; bitpos: [3]; default: 0;
* Set this bit to clear the I2C_END_DETECT_INT interrupt.
*/
uint32_t end_detect_int_clr:1;
/** byte_trans_done_int_clr : WT; bitpos: [4]; default: 0;
* Set this bit to clear the I2C_END_DETECT_INT interrupt.
*/
uint32_t byte_trans_done_int_clr:1;
/** arbitration_lost_int_clr : WT; bitpos: [5]; default: 0;
* Set this bit to clear the I2C_ARBITRATION_LOST_INT interrupt.
*/
uint32_t arbitration_lost_int_clr:1;
/** mst_txfifo_udf_int_clr : WT; bitpos: [6]; default: 0;
* Set this bit to clear I2C_TRANS_COMPLETE_INT interrupt.
*/
uint32_t mst_txfifo_udf_int_clr:1;
/** trans_complete_int_clr : WT; bitpos: [7]; default: 0;
* Set this bit to clear the I2C_TRANS_COMPLETE_INT interrupt.
*/
uint32_t trans_complete_int_clr:1;
/** time_out_int_clr : WT; bitpos: [8]; default: 0;
* Set this bit to clear the I2C_TIME_OUT_INT interrupt.
*/
uint32_t time_out_int_clr:1;
/** trans_start_int_clr : WT; bitpos: [9]; default: 0;
* Set this bit to clear the I2C_TRANS_START_INT interrupt.
*/
uint32_t trans_start_int_clr:1;
/** nack_int_clr : WT; bitpos: [10]; default: 0;
* Set this bit to clear I2C_SLAVE_STRETCH_INT interrupt.
*/
uint32_t nack_int_clr:1;
/** txfifo_ovf_int_clr : WT; bitpos: [11]; default: 0;
* Set this bit to clear I2C_TXFIFO_OVF_INT interrupt.
*/
uint32_t txfifo_ovf_int_clr:1;
/** rxfifo_udf_int_clr : WT; bitpos: [12]; default: 0;
* Set this bit to clear I2C_RXFIFO_UDF_INT interrupt.
*/
uint32_t rxfifo_udf_int_clr:1;
/** scl_st_to_int_clr : WT; bitpos: [13]; default: 0;
* Set this bit to clear I2C_SCL_ST_TO_INT interrupt.
*/
uint32_t scl_st_to_int_clr:1;
/** scl_main_st_to_int_clr : WT; bitpos: [14]; default: 0;
* Set this bit to clear I2C_SCL_MAIN_ST_TO_INT interrupt.
*/
uint32_t scl_main_st_to_int_clr:1;
/** det_start_int_clr : WT; bitpos: [15]; default: 0;
* Set this bit to clear I2C_DET_START_INT interrupt.
*/
uint32_t det_start_int_clr:1;
/** slave_stretch_int_clr : WT; bitpos: [16]; default: 0;
* Set this bit to clear I2C_SLAVE_STRETCH_INT interrupt.
*/
uint32_t slave_stretch_int_clr:1;
/** general_call_int_clr : WT; bitpos: [17]; default: 0;
* Set this bit to clear I2C_GENARAL_CALL_INT interrupt.
*/
uint32_t general_call_int_clr:1;
/** slave_addr_unmatch_int_clr : WT; bitpos: [18]; default: 0;
* Set this bit to clear I2C_SLAVE_ADDR_UNMATCH_INT_RAW interrupt.
*/
uint32_t slave_addr_unmatch_int_clr:1;
uint32_t reserved_19:13;
};
uint32_t val;
} i2c_int_clr_reg_t;
/** Type of int_ena register
* Interrupt enable bits
*/
typedef union {
struct {
/** rxfifo_wm_int_ena : R/W; bitpos: [0]; default: 0;
* The interrupt enable bit for I2C_RXFIFO_WM_INT interrupt.
*/
uint32_t rxfifo_wm_int_ena:1;
/** txfifo_wm_int_ena : R/W; bitpos: [1]; default: 0;
* The interrupt enable bit for I2C_TXFIFO_WM_INT interrupt.
*/
uint32_t txfifo_wm_int_ena:1;
/** rxfifo_ovf_int_ena : R/W; bitpos: [2]; default: 0;
* The interrupt enable bit for I2C_RXFIFO_OVF_INT interrupt.
*/
uint32_t rxfifo_ovf_int_ena:1;
/** end_detect_int_ena : R/W; bitpos: [3]; default: 0;
* The interrupt enable bit for the I2C_END_DETECT_INT interrupt.
*/
uint32_t end_detect_int_ena:1;
/** byte_trans_done_int_ena : R/W; bitpos: [4]; default: 0;
* The interrupt enable bit for the I2C_END_DETECT_INT interrupt.
*/
uint32_t byte_trans_done_int_ena:1;
/** arbitration_lost_int_ena : R/W; bitpos: [5]; default: 0;
* The interrupt enable bit for the I2C_ARBITRATION_LOST_INT interrupt.
*/
uint32_t arbitration_lost_int_ena:1;
/** mst_txfifo_udf_int_ena : R/W; bitpos: [6]; default: 0;
* The interrupt enable bit for I2C_TRANS_COMPLETE_INT interrupt.
*/
uint32_t mst_txfifo_udf_int_ena:1;
/** trans_complete_int_ena : R/W; bitpos: [7]; default: 0;
* The interrupt enable bit for the I2C_TRANS_COMPLETE_INT interrupt.
*/
uint32_t trans_complete_int_ena:1;
/** time_out_int_ena : R/W; bitpos: [8]; default: 0;
* The interrupt enable bit for the I2C_TIME_OUT_INT interrupt.
*/
uint32_t time_out_int_ena:1;
/** trans_start_int_ena : R/W; bitpos: [9]; default: 0;
* The interrupt enable bit for the I2C_TRANS_START_INT interrupt.
*/
uint32_t trans_start_int_ena:1;
/** nack_int_ena : R/W; bitpos: [10]; default: 0;
* The interrupt enable bit for I2C_SLAVE_STRETCH_INT interrupt.
*/
uint32_t nack_int_ena:1;
/** txfifo_ovf_int_ena : R/W; bitpos: [11]; default: 0;
* The interrupt enable bit for I2C_TXFIFO_OVF_INT interrupt.
*/
uint32_t txfifo_ovf_int_ena:1;
/** rxfifo_udf_int_ena : R/W; bitpos: [12]; default: 0;
* The interrupt enable bit for I2C_RXFIFO_UDF_INT interrupt.
*/
uint32_t rxfifo_udf_int_ena:1;
/** scl_st_to_int_ena : R/W; bitpos: [13]; default: 0;
* The interrupt enable bit for I2C_SCL_ST_TO_INT interrupt.
*/
uint32_t scl_st_to_int_ena:1;
/** scl_main_st_to_int_ena : R/W; bitpos: [14]; default: 0;
* The interrupt enable bit for I2C_SCL_MAIN_ST_TO_INT interrupt.
*/
uint32_t scl_main_st_to_int_ena:1;
/** det_start_int_ena : R/W; bitpos: [15]; default: 0;
* The interrupt enable bit for I2C_DET_START_INT interrupt.
*/
uint32_t det_start_int_ena:1;
/** slave_stretch_int_ena : R/W; bitpos: [16]; default: 0;
* The interrupt enable bit for I2C_SLAVE_STRETCH_INT interrupt.
*/
uint32_t slave_stretch_int_ena:1;
/** general_call_int_ena : R/W; bitpos: [17]; default: 0;
* The interrupt enable bit for I2C_GENARAL_CALL_INT interrupt.
*/
uint32_t general_call_int_ena:1;
/** slave_addr_unmatch_int_ena : R/W; bitpos: [18]; default: 0;
* The interrupt enable bit for I2C_SLAVE_ADDR_UNMATCH_INT interrupt.
*/
uint32_t slave_addr_unmatch_int_ena:1;
uint32_t reserved_19:13;
};
uint32_t val;
} i2c_int_ena_reg_t;
/** Type of int_status register
* Status of captured I2C communication events
*/
typedef union {
struct {
/** rxfifo_wm_int_st : RO; bitpos: [0]; default: 0;
* The masked interrupt status bit for I2C_RXFIFO_WM_INT interrupt.
*/
uint32_t rxfifo_wm_int_st:1;
/** txfifo_wm_int_st : RO; bitpos: [1]; default: 0;
* The masked interrupt status bit for I2C_TXFIFO_WM_INT interrupt.
*/
uint32_t txfifo_wm_int_st:1;
/** rxfifo_ovf_int_st : RO; bitpos: [2]; default: 0;
* The masked interrupt status bit for I2C_RXFIFO_OVF_INT interrupt.
*/
uint32_t rxfifo_ovf_int_st:1;
/** end_detect_int_st : RO; bitpos: [3]; default: 0;
* The masked interrupt status bit for the I2C_END_DETECT_INT interrupt.
*/
uint32_t end_detect_int_st:1;
/** byte_trans_done_int_st : RO; bitpos: [4]; default: 0;
* The masked interrupt status bit for the I2C_END_DETECT_INT interrupt.
*/
uint32_t byte_trans_done_int_st:1;
/** arbitration_lost_int_st : RO; bitpos: [5]; default: 0;
* The masked interrupt status bit for the I2C_ARBITRATION_LOST_INT interrupt.
*/
uint32_t arbitration_lost_int_st:1;
/** mst_txfifo_udf_int_st : RO; bitpos: [6]; default: 0;
* The masked interrupt status bit for I2C_TRANS_COMPLETE_INT interrupt.
*/
uint32_t mst_txfifo_udf_int_st:1;
/** trans_complete_int_st : RO; bitpos: [7]; default: 0;
* The masked interrupt status bit for the I2C_TRANS_COMPLETE_INT interrupt.
*/
uint32_t trans_complete_int_st:1;
/** time_out_int_st : RO; bitpos: [8]; default: 0;
* The masked interrupt status bit for the I2C_TIME_OUT_INT interrupt.
*/
uint32_t time_out_int_st:1;
/** trans_start_int_st : RO; bitpos: [9]; default: 0;
* The masked interrupt status bit for the I2C_TRANS_START_INT interrupt.
*/
uint32_t trans_start_int_st:1;
/** nack_int_st : RO; bitpos: [10]; default: 0;
* The masked interrupt status bit for I2C_SLAVE_STRETCH_INT interrupt.
*/
uint32_t nack_int_st:1;
/** txfifo_ovf_int_st : RO; bitpos: [11]; default: 0;
* The masked interrupt status bit for I2C_TXFIFO_OVF_INT interrupt.
*/
uint32_t txfifo_ovf_int_st:1;
/** rxfifo_udf_int_st : RO; bitpos: [12]; default: 0;
* The masked interrupt status bit for I2C_RXFIFO_UDF_INT interrupt.
*/
uint32_t rxfifo_udf_int_st:1;
/** scl_st_to_int_st : RO; bitpos: [13]; default: 0;
* The masked interrupt status bit for I2C_SCL_ST_TO_INT interrupt.
*/
uint32_t scl_st_to_int_st:1;
/** scl_main_st_to_int_st : RO; bitpos: [14]; default: 0;
* The masked interrupt status bit for I2C_SCL_MAIN_ST_TO_INT interrupt.
*/
uint32_t scl_main_st_to_int_st:1;
/** det_start_int_st : RO; bitpos: [15]; default: 0;
* The masked interrupt status bit for I2C_DET_START_INT interrupt.
*/
uint32_t det_start_int_st:1;
/** slave_stretch_int_st : RO; bitpos: [16]; default: 0;
* The masked interrupt status bit for I2C_SLAVE_STRETCH_INT interrupt.
*/
uint32_t slave_stretch_int_st:1;
/** general_call_int_st : RO; bitpos: [17]; default: 0;
* The masked interrupt status bit for I2C_GENARAL_CALL_INT interrupt.
*/
uint32_t general_call_int_st:1;
/** slave_addr_unmatch_int_st : RO; bitpos: [18]; default: 0;
* The masked interrupt status bit for I2C_SLAVE_ADDR_UNMATCH_INT interrupt.
*/
uint32_t slave_addr_unmatch_int_st:1;
uint32_t reserved_19:13;
};
uint32_t val;
} i2c_int_status_reg_t;
/** Group: Command registers */
/** Type of comd register
* I2C command register 0~7
*/
typedef union {
struct {
/** command : R/W; bitpos: [13:0]; default: 0;
* This is the content of command. It consists of three parts:
* op_code is the command, 0: RSTART, 1: WRITE, 2: READ, 3: STOP, 4: END.
* Byte_num represents the number of bytes that need to be sent or received.
* ack_check_en, ack_exp and ack are used to control the ACK bit. See I2C cmd
* structure for more
* Information.
*/
uint32_t command:14;
uint32_t reserved_14:17;
/** command_done : R/W/SS; bitpos: [31]; default: 0;
* When command is done in I2C Master mode, this bit changes to high
* level.
*/
uint32_t command_done:1;
};
uint32_t val;
} i2c_comd_reg_t;
/** Group: Version register */
/** Type of date register
* Version register
*/
typedef union {
struct {
/** date : R/W; bitpos: [31:0]; default: 35656050;
* This is the the version register.
*/
uint32_t date:32;
};
uint32_t val;
} i2c_date_reg_t;
/** Group: Address register */
/** Type of txfifo_start_addr register
* I2C TXFIFO base address register
*/
typedef union {
struct {
/** txfifo_start_addr : HRO; bitpos: [31:0]; default: 0;
* This is the I2C txfifo first address.
*/
uint32_t txfifo_start_addr:32;
};
uint32_t val;
} i2c_txfifo_start_addr_reg_t;
/** Type of rxfifo_start_addr register
* I2C RXFIFO base address register
*/
typedef union {
struct {
/** rxfifo_start_addr : HRO; bitpos: [31:0]; default: 0;
* This is the I2C rxfifo first address.
*/
uint32_t rxfifo_start_addr:32;
};
uint32_t val;
} i2c_rxfifo_start_addr_reg_t;
typedef struct i2c_dev_t {
volatile i2c_scl_low_period_reg_t scl_low_period;
volatile i2c_ctr_reg_t ctr;
volatile i2c_sr_reg_t sr;
volatile i2c_to_reg_t to;
volatile i2c_slave_addr_reg_t slave_addr;
volatile i2c_fifo_st_reg_t fifo_st;
volatile i2c_fifo_conf_reg_t fifo_conf;
volatile i2c_data_reg_t data;
volatile i2c_int_raw_reg_t int_raw;
volatile i2c_int_clr_reg_t int_clr;
volatile i2c_int_ena_reg_t int_ena;
volatile i2c_int_status_reg_t int_status;
volatile i2c_sda_hold_reg_t sda_hold;
volatile i2c_sda_sample_reg_t sda_sample;
volatile i2c_scl_high_period_reg_t scl_high_period;
uint32_t reserved_03c;
volatile i2c_scl_start_hold_reg_t scl_start_hold;
volatile i2c_scl_rstart_setup_reg_t scl_rstart_setup;
volatile i2c_scl_stop_hold_reg_t scl_stop_hold;
volatile i2c_scl_stop_setup_reg_t scl_stop_setup;
volatile i2c_filter_cfg_reg_t filter_cfg;
volatile i2c_clk_conf_reg_t clk_conf;
volatile i2c_comd_reg_t command[8];
volatile i2c_scl_st_time_out_reg_t scl_st_time_out;
volatile i2c_scl_main_st_time_out_reg_t scl_main_st_time_out;
volatile i2c_scl_sp_conf_reg_t scl_sp_conf;
volatile i2c_scl_stretch_conf_reg_t scl_stretch_conf;
uint32_t reserved_088[28];
volatile i2c_date_reg_t date;
uint32_t reserved_0fc;
volatile i2c_txfifo_start_addr_reg_t txfifo_start_addr;
uint32_t reserved_104[31];
volatile i2c_rxfifo_start_addr_reg_t rxfifo_start_addr;
} i2c_dev_t;
extern i2c_dev_t I2C0;
extern i2c_dev_t I2C1;
#ifndef __cplusplus
_Static_assert(sizeof(i2c_dev_t) == 0x184, "Invalid size of i2c_dev_t structure");
#endif
#ifdef __cplusplus
}
#endif
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