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898 lines
32 KiB
C
898 lines
32 KiB
C
/**
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* SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#pragma once
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** Group: Timing registers */
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/** Type of scl_low_period register
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* Configures the low level width of the SCL
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* Clock
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*/
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typedef union {
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struct {
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/** scl_low_period : R/W; bitpos: [8:0]; default: 0;
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* This register is used to configure for how long SCL remains low in master mode, in
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* I2C module clock cycles.
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*/
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uint32_t scl_low_period:9;
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uint32_t reserved_9:23;
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};
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uint32_t val;
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} i2c_scl_low_period_reg_t;
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/** Type of sda_hold register
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* Configures the hold time after a negative SCL edge.
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*/
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typedef union {
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struct {
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/** sda_hold_time : R/W; bitpos: [8:0]; default: 0;
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* This register is used to configure the time to hold the data after the negative
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* edge of SCL, in I2C module clock cycles.
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*/
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uint32_t sda_hold_time:9;
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uint32_t reserved_9:23;
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};
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uint32_t val;
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} i2c_sda_hold_reg_t;
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/** Type of sda_sample register
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* Configures the sample time after a positive SCL edge.
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*/
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typedef union {
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struct {
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/** sda_sample_time : R/W; bitpos: [8:0]; default: 0;
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* This register is used to configure for how long SDA is sampled, in I2C module clock
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* cycles.
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*/
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uint32_t sda_sample_time:9;
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uint32_t reserved_9:23;
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};
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uint32_t val;
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} i2c_sda_sample_reg_t;
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/** Type of scl_high_period register
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* Configures the high level width of SCL
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*/
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typedef union {
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struct {
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/** scl_high_period : R/W; bitpos: [8:0]; default: 0;
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* This register is used to configure for how long SCL setup to high level and remains
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* high in master mode, in I2C module clock cycles.
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*/
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uint32_t scl_high_period:9;
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/** scl_wait_high_period : R/W; bitpos: [15:9]; default: 0;
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* This register is used to configure for the SCL_FSM's waiting period for SCL high
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* level in master mode, in I2C module clock cycles.
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*/
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uint32_t scl_wait_high_period:7;
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uint32_t reserved_16:16;
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};
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uint32_t val;
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} i2c_scl_high_period_reg_t;
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/** Type of scl_start_hold register
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* Configures the delay between the SDA and SCL negative edge for a start condition
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*/
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typedef union {
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struct {
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/** scl_start_hold_time : R/W; bitpos: [8:0]; default: 8;
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* This register is used to configure the time between the negative edge
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* of SDA and the negative edge of SCL for a START condition, in I2C module clock
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* cycles.
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*/
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uint32_t scl_start_hold_time:9;
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uint32_t reserved_9:23;
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};
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uint32_t val;
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} i2c_scl_start_hold_reg_t;
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/** Type of scl_rstart_setup register
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* Configures the delay between the positive
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* edge of SCL and the negative edge of SDA
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*/
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typedef union {
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struct {
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/** scl_rstart_setup_time : R/W; bitpos: [8:0]; default: 8;
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* This register is used to configure the time between the positive
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* edge of SCL and the negative edge of SDA for a RESTART condition, in I2C module
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* clock cycles.
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*/
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uint32_t scl_rstart_setup_time:9;
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uint32_t reserved_9:23;
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};
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uint32_t val;
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} i2c_scl_rstart_setup_reg_t;
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/** Type of scl_stop_hold register
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* Configures the delay after the SCL clock
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* edge for a stop condition
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*/
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typedef union {
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struct {
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/** scl_stop_hold_time : R/W; bitpos: [8:0]; default: 8;
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* This register is used to configure the delay after the STOP condition,
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* in I2C module clock cycles.
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*/
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uint32_t scl_stop_hold_time:9;
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uint32_t reserved_9:23;
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};
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uint32_t val;
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} i2c_scl_stop_hold_reg_t;
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/** Type of scl_stop_setup register
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* Configures the delay between the SDA and
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* SCL positive edge for a stop condition
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*/
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typedef union {
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struct {
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/** scl_stop_setup_time : R/W; bitpos: [8:0]; default: 8;
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* This register is used to configure the time between the positive edge
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* of SCL and the positive edge of SDA, in I2C module clock cycles.
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*/
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uint32_t scl_stop_setup_time:9;
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uint32_t reserved_9:23;
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};
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uint32_t val;
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} i2c_scl_stop_setup_reg_t;
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/** Type of scl_st_time_out register
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* SCL status time out register
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*/
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typedef union {
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struct {
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/** scl_st_to_i2c : R/W; bitpos: [4:0]; default: 16;
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* The threshold value of SCL_FSM state unchanged period. It should be o more than 23
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*/
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uint32_t scl_st_to_i2c:5;
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uint32_t reserved_5:27;
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};
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uint32_t val;
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} i2c_scl_st_time_out_reg_t;
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/** Type of scl_main_st_time_out register
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* SCL main status time out register
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*/
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typedef union {
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struct {
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/** scl_main_st_to_i2c : R/W; bitpos: [4:0]; default: 16;
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* The threshold value of SCL_MAIN_FSM state unchanged period.nIt should be o more
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* than 23
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*/
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uint32_t scl_main_st_to_i2c:5;
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uint32_t reserved_5:27;
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};
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uint32_t val;
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} i2c_scl_main_st_time_out_reg_t;
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/** Group: Configuration registers */
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/** Type of ctr register
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* Transmission setting
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*/
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typedef union {
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struct {
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/** sda_force_out : R/W; bitpos: [0]; default: 1;
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* 0: direct output, 1: open drain output.
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*/
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uint32_t sda_force_out:1;
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/** scl_force_out : R/W; bitpos: [1]; default: 1;
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* 0: direct output, 1: open drain output.
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*/
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uint32_t scl_force_out:1;
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/** sample_scl_level : R/W; bitpos: [2]; default: 0;
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* This register is used to select the sample mode.
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* 1: sample SDA data on the SCL low level.
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* 0: sample SDA data on the SCL high level.
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*/
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uint32_t sample_scl_level:1;
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/** rx_full_ack_level : R/W; bitpos: [3]; default: 1;
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* This register is used to configure the ACK value that need to sent by master when
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* the rx_fifo_cnt has reached the threshold.
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*/
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uint32_t rx_full_ack_level:1;
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/** ms_mode : R/W; bitpos: [4]; default: 0;
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* Set this bit to configure the module as an I2C Master. Clear this bit to configure
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* the
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* module as an I2C Slave.
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*/
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uint32_t ms_mode:1;
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/** trans_start : WT; bitpos: [5]; default: 0;
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* Set this bit to start sending the data in txfifo.
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*/
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uint32_t trans_start:1;
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/** tx_lsb_first : R/W; bitpos: [6]; default: 0;
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* This bit is used to control the sending mode for data needing to be sent.
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* 1: send data from the least significant bit,
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* 0: send data from the most significant bit.
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*/
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uint32_t tx_lsb_first:1;
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/** rx_lsb_first : R/W; bitpos: [7]; default: 0;
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* This bit is used to control the storage mode for received data.
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* 1: receive data from the least significant bit,
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* 0: receive data from the most significant bit.
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*/
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uint32_t rx_lsb_first:1;
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/** clk_en : R/W; bitpos: [8]; default: 0;
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* Reserved
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*/
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uint32_t clk_en:1;
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/** arbitration_en : R/W; bitpos: [9]; default: 1;
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* This is the enable bit for arbitration_lost.
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*/
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uint32_t arbitration_en:1;
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/** fsm_rst : WT; bitpos: [10]; default: 0;
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* This register is used to reset the scl FMS.
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*/
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uint32_t fsm_rst:1;
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/** conf_upgate : WT; bitpos: [11]; default: 0;
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* synchronization bit
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*/
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uint32_t conf_upgate:1;
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/** slv_tx_auto_start_en : R/W; bitpos: [12]; default: 0;
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* This is the enable bit for slave to send data automatically
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*/
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uint32_t slv_tx_auto_start_en:1;
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uint32_t reserved_13:19;
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};
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uint32_t val;
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} i2c_ctr_reg_t;
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/** Type of to register
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* Setting time out control for receiving data.
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*/
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typedef union {
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struct {
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/** time_out_value : R/W; bitpos: [4:0]; default: 16;
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* This register is used to configure the timeout for receiving a data bit in APB
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* clock cycles.
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*/
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uint32_t time_out_value:5;
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/** time_out_en : R/W; bitpos: [5]; default: 0;
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* This is the enable bit for time out control.
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*/
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uint32_t time_out_en:1;
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uint32_t reserved_6:26;
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};
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uint32_t val;
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} i2c_to_reg_t;
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/** Type of fifo_conf register
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* FIFO configuration register.
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*/
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typedef union {
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struct {
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/** rxfifo_wm_thrhd : R/W; bitpos: [3:0]; default: 6;
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* The water mark threshold of rx FIFO in nonfifo access mode. When
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* reg_reg_fifo_prt_en is 1 and rx FIFO counter is bigger than
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* reg_rxfifo_wm_thrhd[3:0], reg_rxfifo_wm_int_raw bit will be valid.
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*/
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uint32_t rxfifo_wm_thrhd:4;
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uint32_t reserved_4:1;
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/** txfifo_wm_thrhd : R/W; bitpos: [8:5]; default: 2;
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* The water mark threshold of tx FIFO in nonfifo access mode. When
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* reg_reg_fifo_prt_en is 1 and tx FIFO counter is smaller than
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* reg_txfifo_wm_thrhd[3:0], reg_txfifo_wm_int_raw bit will be valid.
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*/
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uint32_t txfifo_wm_thrhd:4;
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uint32_t reserved_9:1;
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/** nonfifo_en : R/W; bitpos: [10]; default: 0;
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* Set this bit to enable APB nonfifo access.
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*/
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uint32_t nonfifo_en:1;
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uint32_t reserved_11:1;
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/** rx_fifo_rst : R/W; bitpos: [12]; default: 0;
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* Set this bit to reset rx-fifo.
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*/
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uint32_t rx_fifo_rst:1;
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/** tx_fifo_rst : R/W; bitpos: [13]; default: 0;
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* Set this bit to reset tx-fifo.
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*/
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uint32_t tx_fifo_rst:1;
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/** fifo_prt_en : R/W; bitpos: [14]; default: 1;
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* The control enable bit of FIFO pointer in non-fifo access mode. This bit controls
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* the valid bits and the interrupts of tx/rx_fifo overflow, underflow, full and empty.
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*/
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uint32_t fifo_prt_en:1;
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uint32_t reserved_15:17;
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};
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uint32_t val;
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} i2c_fifo_conf_reg_t;
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/** Type of filter_cfg register
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* SCL and SDA filter configuration register
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*/
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typedef union {
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struct {
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/** scl_filter_thres : R/W; bitpos: [3:0]; default: 0;
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* When a pulse on the SCL input has smaller width than this register value
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* in I2C module clock cycles, the I2C controller will ignore that pulse.
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*/
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uint32_t scl_filter_thres:4;
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/** sda_filter_thres : R/W; bitpos: [7:4]; default: 0;
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* When a pulse on the SDA input has smaller width than this register value
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* in I2C module clock cycles, the I2C controller will ignore that pulse.
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*/
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uint32_t sda_filter_thres:4;
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/** scl_filter_en : R/W; bitpos: [8]; default: 1;
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* This is the filter enable bit for SCL.
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*/
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uint32_t scl_filter_en:1;
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/** sda_filter_en : R/W; bitpos: [9]; default: 1;
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* This is the filter enable bit for SDA.
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*/
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uint32_t sda_filter_en:1;
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uint32_t reserved_10:22;
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};
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uint32_t val;
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} i2c_filter_cfg_reg_t;
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/** Type of clk_conf register
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* I2C CLK configuration register
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*/
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typedef union {
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struct {
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/** sclk_div_num : R/W; bitpos: [7:0]; default: 0;
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* the integral part of the fractional divisor for i2c module
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*/
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uint32_t sclk_div_num:8;
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/** sclk_div_a : R/W; bitpos: [13:8]; default: 0;
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* the numerator of the fractional part of the fractional divisor for i2c module
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*/
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uint32_t sclk_div_a:6;
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/** sclk_div_b : R/W; bitpos: [19:14]; default: 0;
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* the denominator of the fractional part of the fractional divisor for i2c module
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*/
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uint32_t sclk_div_b:6;
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/** sclk_sel : R/W; bitpos: [20]; default: 0;
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* The clock selection for i2c module:0-XTAL,1-CLK_8MHz.
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*/
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uint32_t sclk_sel:1;
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/** sclk_active : R/W; bitpos: [21]; default: 1;
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* The clock switch for i2c module
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*/
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uint32_t sclk_active:1;
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uint32_t reserved_22:10;
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};
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uint32_t val;
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} i2c_clk_conf_reg_t;
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/** Type of scl_sp_conf register
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* Power configuration register
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*/
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typedef union {
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struct {
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/** scl_rst_slv_en : R/W/SC; bitpos: [0]; default: 0;
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* When I2C master is IDLE, set this bit to send out SCL pulses. The number of pulses
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* equals to reg_scl_rst_slv_num[4:0].
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*/
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uint32_t scl_rst_slv_en:1;
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/** scl_rst_slv_num : R/W; bitpos: [5:1]; default: 0;
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* Configure the pulses of SCL generated in I2C master mode. Valid when
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* reg_scl_rst_slv_en is 1.
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*/
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uint32_t scl_rst_slv_num:5;
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/** scl_pd_en : R/W; bitpos: [6]; default: 0;
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* The power down enable bit for the I2C output SCL line. 1: Power down. 0: Not power
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* down. Set reg_scl_force_out and reg_scl_pd_en to 1 to stretch SCL low.
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*/
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uint32_t scl_pd_en:1;
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/** sda_pd_en : R/W; bitpos: [7]; default: 0;
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* The power down enable bit for the I2C output SDA line. 1: Power down. 0: Not power
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* down. Set reg_sda_force_out and reg_sda_pd_en to 1 to stretch SDA low.
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*/
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uint32_t sda_pd_en:1;
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uint32_t reserved_8:24;
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};
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uint32_t val;
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} i2c_scl_sp_conf_reg_t;
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/** Group: Status registers */
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/** Type of sr register
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* Describe I2C work status.
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*/
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typedef union {
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struct {
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/** resp_rec : RO; bitpos: [0]; default: 0;
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* The received ACK value in master mode or slave mode. 0: ACK, 1: NACK.
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*/
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uint32_t resp_rec:1;
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uint32_t reserved_1:2;
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/** arb_lost : RO; bitpos: [3]; default: 0;
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* When the I2C controller loses control of SCL line, this register changes to 1.
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*/
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uint32_t arb_lost:1;
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/** bus_busy : RO; bitpos: [4]; default: 0;
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* 1: the I2C bus is busy transferring data, 0: the I2C bus is in idle state.
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*/
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uint32_t bus_busy:1;
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uint32_t reserved_5:3;
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/** rxfifo_cnt : RO; bitpos: [12:8]; default: 0;
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* This field represents the amount of data needed to be sent.
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*/
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uint32_t rxfifo_cnt:5;
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uint32_t reserved_13:5;
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/** txfifo_cnt : RO; bitpos: [22:18]; default: 0;
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* This field stores the amount of received data in RAM.
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*/
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uint32_t txfifo_cnt:5;
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uint32_t reserved_23:1;
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/** scl_main_state_last : RO; bitpos: [26:24]; default: 0;
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* This field indicates the states of the I2C module state machine.
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* 0: Idle, 1: Address shift, 2: ACK address, 3: Rx data, 4: Tx data, 5: Send ACK, 6:
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* Wait ACK
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*/
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uint32_t scl_main_state_last:3;
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uint32_t reserved_27:1;
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/** scl_state_last : RO; bitpos: [30:28]; default: 0;
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* This field indicates the states of the state machine used to produce SCL.
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* 0: Idle, 1: Start, 2: Negative edge, 3: Low, 4: Positive edge, 5: High, 6: Stop
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*/
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uint32_t scl_state_last:3;
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uint32_t reserved_31:1;
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};
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uint32_t val;
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} i2c_sr_reg_t;
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/** Type of fifo_st register
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* FIFO status register.
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*/
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typedef union {
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struct {
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/** rxfifo_raddr : RO; bitpos: [3:0]; default: 0;
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* This is the offset address of the APB reading from rxfifo
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*/
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uint32_t rxfifo_raddr:4;
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uint32_t reserved_4:1;
|
|
/** rxfifo_waddr : RO; bitpos: [8:5]; default: 0;
|
|
* This is the offset address of i2c module receiving data and writing to rxfifo.
|
|
*/
|
|
uint32_t rxfifo_waddr:4;
|
|
uint32_t reserved_9:1;
|
|
/** txfifo_raddr : RO; bitpos: [13:10]; default: 0;
|
|
* This is the offset address of i2c module reading from txfifo.
|
|
*/
|
|
uint32_t txfifo_raddr:4;
|
|
uint32_t reserved_14:1;
|
|
/** txfifo_waddr : RO; bitpos: [18:15]; default: 0;
|
|
* This is the offset address of APB bus writing to txfifo.
|
|
*/
|
|
uint32_t txfifo_waddr:4;
|
|
uint32_t reserved_19:13;
|
|
};
|
|
uint32_t val;
|
|
} i2c_fifo_st_reg_t;
|
|
|
|
/** Type of data register
|
|
* Rx FIFO read data.
|
|
*/
|
|
typedef union {
|
|
struct {
|
|
/** fifo_rdata : RO; 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;
|
|
uint32_t reserved_16:16;
|
|
};
|
|
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;
|
|
uint32_t reserved_16:16;
|
|
};
|
|
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;
|
|
uint32_t reserved_16:16;
|
|
};
|
|
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;
|
|
uint32_t reserved_16:16;
|
|
};
|
|
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: 34628163;
|
|
* 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;
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typedef struct {
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volatile i2c_scl_low_period_reg_t scl_low_period;
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volatile i2c_ctr_reg_t ctr;
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volatile i2c_sr_reg_t sr;
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volatile i2c_to_reg_t to;
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uint32_t reserved_010;
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volatile i2c_fifo_st_reg_t fifo_st;
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volatile i2c_fifo_conf_reg_t fifo_conf;
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volatile i2c_data_reg_t data;
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volatile i2c_int_raw_reg_t int_raw;
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volatile i2c_int_clr_reg_t int_clr;
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volatile i2c_int_ena_reg_t int_ena;
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volatile i2c_int_status_reg_t int_status;
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volatile i2c_sda_hold_reg_t sda_hold;
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volatile i2c_sda_sample_reg_t sda_sample;
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volatile i2c_scl_high_period_reg_t scl_high_period;
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uint32_t reserved_03c;
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volatile i2c_scl_start_hold_reg_t scl_start_hold;
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volatile i2c_scl_rstart_setup_reg_t scl_rstart_setup;
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volatile i2c_scl_stop_hold_reg_t scl_stop_hold;
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volatile i2c_scl_stop_setup_reg_t scl_stop_setup;
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volatile i2c_filter_cfg_reg_t filter_cfg;
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volatile i2c_clk_conf_reg_t clk_conf;
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volatile i2c_comd_reg_t command[8];
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volatile i2c_scl_st_time_out_reg_t scl_st_time_out;
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volatile i2c_scl_main_st_time_out_reg_t scl_main_st_time_out;
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volatile i2c_scl_sp_conf_reg_t scl_sp_conf;
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uint32_t reserved_084[29];
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volatile i2c_date_reg_t date;
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uint32_t reserved_0fc;
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volatile i2c_txfifo_start_addr_reg_t txfifo_start_addr;
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uint32_t reserved_104[31];
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volatile i2c_rxfifo_start_addr_reg_t rxfifo_start_addr;
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} i2c_dev_t;
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extern i2c_dev_t I2C0;
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#ifndef __cplusplus
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_Static_assert(sizeof(i2c_dev_t) == 0x184, "Invalid size of i2c_dev_t structure");
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#endif
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#ifdef __cplusplus
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}
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#endif
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