Danger-alarm/SOFTWARE-FreeRTOS/Common/drivers/LuminaryMicro/hw_i2c.h
2024-06-03 16:27:41 +08:00

414 lines
20 KiB
C

//*****************************************************************************
//
// hw_i2c.h - Macros used when accessing the I2C master and slave hardware.
//
// Copyright (c) 2005-2008 Luminary Micro, Inc. All rights reserved.
//
// Software License Agreement
//
// Luminary Micro, Inc. (LMI) is supplying this software for use solely and
// exclusively on LMI's microcontroller products.
//
// The software is owned by LMI and/or its suppliers, and is protected under
// applicable copyright laws. All rights are reserved. You may not combine
// this software with "viral" open-source software in order to form a larger
// program. Any use in violation of the foregoing restrictions may subject
// the user to criminal sanctions under applicable laws, as well as to civil
// liability for the breach of the terms and conditions of this license.
//
// THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED
// OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
// LMI SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
// CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 2523 of the Stellaris Peripheral Driver Library.
//
//*****************************************************************************
#ifndef __HW_I2C_H__
#define __HW_I2C_H__
//*****************************************************************************
//
// The following are defines for the offsets between the I2C master and slave
// registers.
//
//*****************************************************************************
#define I2C_O_MSA 0x00000000 // I2C Master Slave Address
#define I2C_O_SOAR 0x00000000 // I2C Slave Own Address
#define I2C_O_SCSR 0x00000004 // I2C Slave Control/Status
#define I2C_O_MCS 0x00000004 // I2C Master Control/Status
#define I2C_O_SDR 0x00000008 // I2C Slave Data
#define I2C_O_MDR 0x00000008 // I2C Master Data
#define I2C_O_MTPR 0x0000000C // I2C Master Timer Period
#define I2C_O_SIMR 0x0000000C // I2C Slave Interrupt Mask
#define I2C_O_SRIS 0x00000010 // I2C Slave Raw Interrupt Status
#define I2C_O_MIMR 0x00000010 // I2C Master Interrupt Mask
#define I2C_O_MRIS 0x00000014 // I2C Master Raw Interrupt Status
#define I2C_O_SMIS 0x00000014 // I2C Slave Masked Interrupt
// Status
#define I2C_O_SICR 0x00000018 // I2C Slave Interrupt Clear
#define I2C_O_MMIS 0x00000018 // I2C Master Masked Interrupt
// Status
#define I2C_O_MICR 0x0000001C // I2C Master Interrupt Clear
#define I2C_O_MCR 0x00000020 // I2C Master Configuration
//*****************************************************************************
//
// The following are defines for the bit fields in the I2C_O_MSA register.
//
//*****************************************************************************
#define I2C_MSA_SA_M 0x000000FE // I2C Slave Address.
#define I2C_MSA_RS 0x00000001 // Receive not Send
#define I2C_MSA_SA_S 1
//*****************************************************************************
//
// The following are defines for the bit fields in the I2C_O_SOAR register.
//
//*****************************************************************************
#define I2C_SOAR_OAR_M 0x0000007F // I2C Slave Own Address.
#define I2C_SOAR_OAR_S 0
//*****************************************************************************
//
// The following are defines for the bit fields in the I2C_O_SCSR register.
//
//*****************************************************************************
#define I2C_SCSR_FBR 0x00000004 // First Byte Received.
#define I2C_SCSR_TREQ 0x00000002 // Transmit Request.
#define I2C_SCSR_DA 0x00000001 // Device Active.
#define I2C_SCSR_RREQ 0x00000001 // Receive Request.
//*****************************************************************************
//
// The following are defines for the bit fields in the I2C_O_MCS register.
//
//*****************************************************************************
#define I2C_MCS_BUSBSY 0x00000040 // Bus Busy.
#define I2C_MCS_IDLE 0x00000020 // I2C Idle.
#define I2C_MCS_ARBLST 0x00000010 // Arbitration Lost.
#define I2C_MCS_ACK 0x00000008 // Data Acknowledge Enable.
#define I2C_MCS_DATACK 0x00000008 // Acknowledge Data.
#define I2C_MCS_ADRACK 0x00000004 // Acknowledge Address.
#define I2C_MCS_STOP 0x00000004 // Generate STOP.
#define I2C_MCS_START 0x00000002 // Generate START.
#define I2C_MCS_ERROR 0x00000002 // Error.
#define I2C_MCS_RUN 0x00000001 // I2C Master Enable.
#define I2C_MCS_BUSY 0x00000001 // I2C Busy.
//*****************************************************************************
//
// The following are defines for the bit fields in the I2C_O_SDR register.
//
//*****************************************************************************
#define I2C_SDR_DATA_M 0x000000FF // Data for Transfer.
#define I2C_SDR_DATA_S 0
//*****************************************************************************
//
// The following are defines for the bit fields in the I2C_O_MDR register.
//
//*****************************************************************************
#define I2C_MDR_DATA_M 0x000000FF // Data Transferred.
#define I2C_MDR_DATA_S 0
//*****************************************************************************
//
// The following are defines for the bit fields in the I2C_O_MTPR register.
//
//*****************************************************************************
#define I2C_MTPR_TPR_M 0x000000FF // SCL Clock Period.
#define I2C_MTPR_TPR_S 0
//*****************************************************************************
//
// The following are defines for the bit fields in the I2C_O_SIMR register.
//
//*****************************************************************************
#define I2C_SIMR_STOPIM 0x00000004 // Stop Condition Interrupt Mask.
#define I2C_SIMR_STARTIM 0x00000002 // Start Condition Interrupt Mask.
#define I2C_SIMR_DATAIM 0x00000001 // Data Interrupt Mask.
//*****************************************************************************
//
// The following are defines for the bit fields in the I2C_O_SRIS register.
//
//*****************************************************************************
#define I2C_SRIS_STOPRIS 0x00000004 // Stop Condition Raw Interrupt
// Status.
#define I2C_SRIS_STARTRIS 0x00000002 // Start Condition Raw Interrupt
// Status.
#define I2C_SRIS_DATARIS 0x00000001 // Data Raw Interrupt Status.
//*****************************************************************************
//
// The following are defines for the bit fields in the I2C_O_MIMR register.
//
//*****************************************************************************
#define I2C_MIMR_IM 0x00000001 // Interrupt Mask.
//*****************************************************************************
//
// The following are defines for the bit fields in the I2C_O_MRIS register.
//
//*****************************************************************************
#define I2C_MRIS_RIS 0x00000001 // Raw Interrupt Status.
//*****************************************************************************
//
// The following are defines for the bit fields in the I2C_O_SMIS register.
//
//*****************************************************************************
#define I2C_SMIS_STOPMIS 0x00000004 // Stop Condition Masked Interrupt
// Status.
#define I2C_SMIS_STARTMIS 0x00000002 // Start Condition Masked Interrupt
// Status.
#define I2C_SMIS_DATAMIS 0x00000001 // Data Masked Interrupt Status.
//*****************************************************************************
//
// The following are defines for the bit fields in the I2C_O_SICR register.
//
//*****************************************************************************
#define I2C_SICR_STOPIC 0x00000004 // Stop Condition Interrupt Clear.
#define I2C_SICR_STARTIC 0x00000002 // Start Condition Interrupt Clear.
#define I2C_SICR_DATAIC 0x00000001 // Data Clear Interrupt.
//*****************************************************************************
//
// The following are defines for the bit fields in the I2C_O_MMIS register.
//
//*****************************************************************************
#define I2C_MMIS_MIS 0x00000001 // Masked Interrupt Status.
//*****************************************************************************
//
// The following are defines for the bit fields in the I2C_O_MICR register.
//
//*****************************************************************************
#define I2C_MICR_IC 0x00000001 // Interrupt Clear.
//*****************************************************************************
//
// The following are defines for the bit fields in the I2C_O_MCR register.
//
//*****************************************************************************
#define I2C_MCR_SFE 0x00000020 // I2C Slave Function Enable.
#define I2C_MCR_MFE 0x00000010 // I2C Master Function Enable.
#define I2C_MCR_LPBK 0x00000001 // I2C Loopback.
//*****************************************************************************
//
// The following definitions are deprecated.
//
//*****************************************************************************
#ifndef DEPRECATED
//*****************************************************************************
//
// The following are deprecated defines for the offsets between the I2C master
// and slave registers.
//
//*****************************************************************************
#define I2C_O_SLAVE 0x00000800 // Offset from master to slave
//*****************************************************************************
//
// The following are deprecated defines for the I2C master register offsets.
//
//*****************************************************************************
#define I2C_MASTER_O_SA 0x00000000 // Slave address register
#define I2C_MASTER_O_CS 0x00000004 // Control and Status register
#define I2C_MASTER_O_DR 0x00000008 // Data register
#define I2C_MASTER_O_TPR 0x0000000C // Timer period register
#define I2C_MASTER_O_IMR 0x00000010 // Interrupt mask register
#define I2C_MASTER_O_RIS 0x00000014 // Raw interrupt status register
#define I2C_MASTER_O_MIS 0x00000018 // Masked interrupt status reg
#define I2C_MASTER_O_MICR 0x0000001C // Interrupt clear register
#define I2C_MASTER_O_CR 0x00000020 // Configuration register
//*****************************************************************************
//
// The following are deprecated defines for the I2C slave register offsets.
//
//*****************************************************************************
#define I2C_SLAVE_O_SICR 0x00000018 // Interrupt clear register
#define I2C_SLAVE_O_MIS 0x00000014 // Masked interrupt status reg
#define I2C_SLAVE_O_RIS 0x00000010 // Raw interrupt status register
#define I2C_SLAVE_O_IM 0x0000000C // Interrupt mask register
#define I2C_SLAVE_O_DR 0x00000008 // Data register
#define I2C_SLAVE_O_CSR 0x00000004 // Control/Status register
#define I2C_SLAVE_O_OAR 0x00000000 // Own address register
//*****************************************************************************
//
// The following are deprecated defines for the bit fields in the I2C master
// slave address register.
//
//*****************************************************************************
#define I2C_MASTER_SA_SA_MASK 0x000000FE // Slave address
#define I2C_MASTER_SA_RS 0x00000001 // Receive/send
#define I2C_MASTER_SA_SA_SHIFT 1
//*****************************************************************************
//
// The following are deprecated defines for the bit fields in the I2C Master
// Control and Status register.
//
//*****************************************************************************
#define I2C_MASTER_CS_BUS_BUSY 0x00000040 // Bus busy
#define I2C_MASTER_CS_IDLE 0x00000020 // Idle
#define I2C_MASTER_CS_ERR_MASK 0x0000001C
#define I2C_MASTER_CS_BUSY 0x00000001 // Controller is TX/RX data
#define I2C_MASTER_CS_ERROR 0x00000002 // Error occurred
#define I2C_MASTER_CS_ADDR_ACK 0x00000004 // Address byte not acknowledged
#define I2C_MASTER_CS_DATA_ACK 0x00000008 // Data byte not acknowledged
#define I2C_MASTER_CS_ARB_LOST 0x00000010 // Lost arbitration
#define I2C_MASTER_CS_ACK 0x00000008 // Acknowlegde
#define I2C_MASTER_CS_STOP 0x00000004 // Stop
#define I2C_MASTER_CS_START 0x00000002 // Start
#define I2C_MASTER_CS_RUN 0x00000001 // Run
//*****************************************************************************
//
// The following are deprecated defines for the values used in determining the
// contents of the I2C Master Timer Period register.
//
//*****************************************************************************
#define I2C_SCL_FAST 400000 // SCL fast frequency
#define I2C_SCL_STANDARD 100000 // SCL standard frequency
#define I2C_MASTER_TPR_SCL_LP 0x00000006 // SCL low period
#define I2C_MASTER_TPR_SCL_HP 0x00000004 // SCL high period
#define I2C_MASTER_TPR_SCL (I2C_MASTER_TPR_SCL_HP + I2C_MASTER_TPR_SCL_LP)
//*****************************************************************************
//
// The following are deprecated defines for the bit fields in the I2C Master
// Interrupt Mask register.
//
//*****************************************************************************
#define I2C_MASTER_IMR_IM 0x00000001 // Master interrupt mask
//*****************************************************************************
//
// The following are deprecated defines for the bit fields in the I2C Master
// Raw Interrupt Status register.
//
//*****************************************************************************
#define I2C_MASTER_RIS_RIS 0x00000001 // Master raw interrupt status
//*****************************************************************************
//
// The following are deprecated defines for the bit fields in the I2C Master
// Masked Interrupt Status register.
//
//*****************************************************************************
#define I2C_MASTER_MIS_MIS 0x00000001 // Master masked interrupt status
//*****************************************************************************
//
// The following are deprecated defines for the bit fields in the I2C Master
// Interrupt Clear register.
//
//*****************************************************************************
#define I2C_MASTER_MICR_IC 0x00000001 // Master interrupt clear
//*****************************************************************************
//
// The following are deprecated defines for the bit fields in the I2C Master
// Configuration register.
//
//*****************************************************************************
#define I2C_MASTER_CR_SFE 0x00000020 // Slave function enable
#define I2C_MASTER_CR_MFE 0x00000010 // Master function enable
#define I2C_MASTER_CR_LPBK 0x00000001 // Loopback enable
//*****************************************************************************
//
// The following are deprecated defines for the bit fields in the I2C Slave Own
// Address register.
//
//*****************************************************************************
#define I2C_SLAVE_SOAR_OAR_MASK 0x0000007F // Slave address
//*****************************************************************************
//
// The following are deprecated defines for the bit fields in the I2C Slave
// Control/Status register.
//
//*****************************************************************************
#define I2C_SLAVE_CSR_FBR 0x00000004 // First byte received from master
#define I2C_SLAVE_CSR_TREQ 0x00000002 // Transmit request received
#define I2C_SLAVE_CSR_DA 0x00000001 // Enable the device
#define I2C_SLAVE_CSR_RREQ 0x00000001 // Receive data from I2C master
//*****************************************************************************
//
// The following are deprecated defines for the bit fields in the I2C Slave
// Interrupt Mask register.
//
//*****************************************************************************
#define I2C_SLAVE_IMR_IM 0x00000001 // Slave interrupt mask
//*****************************************************************************
//
// The following are deprecated defines for the bit fields in the I2C Slave Raw
// Interrupt Status register.
//
//*****************************************************************************
#define I2C_SLAVE_RIS_RIS 0x00000001 // Slave raw interrupt status
//*****************************************************************************
//
// The following are deprecated defines for the bit fields in the I2C Slave
// Masked Interrupt Status register.
//
//*****************************************************************************
#define I2C_SLAVE_MIS_MIS 0x00000001 // Slave masked interrupt status
//*****************************************************************************
//
// The following are deprecated defines for the bit fields in the I2C Slave
// Interrupt Clear register.
//
//*****************************************************************************
#define I2C_SLAVE_SICR_IC 0x00000001 // Slave interrupt clear
//*****************************************************************************
//
// The following are deprecated defines for the bit fields in the I2C_O_SIMR
// register.
//
//*****************************************************************************
#define I2C_SIMR_IM 0x00000001 // Interrupt Mask.
//*****************************************************************************
//
// The following are deprecated defines for the bit fields in the I2C_O_SRIS
// register.
//
//*****************************************************************************
#define I2C_SRIS_RIS 0x00000001 // Raw Interrupt Status.
//*****************************************************************************
//
// The following are deprecated defines for the bit fields in the I2C_O_SMIS
// register.
//
//*****************************************************************************
#define I2C_SMIS_MIS 0x00000001 // Masked Interrupt Status.
//*****************************************************************************
//
// The following are deprecated defines for the bit fields in the I2C_O_SICR
// register.
//
//*****************************************************************************
#define I2C_SICR_IC 0x00000001 // Clear Interrupt.
#endif
#endif // __HW_I2C_H__