hw_i2c.h
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//*****************************************************************************
//
// hw_i2c.h - Macros used when accessing the I2C master and slave hardware.
//
// Copyright (c) 2005-2012 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
//
// Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the
// distribution.
//
// Neither the name of Texas Instruments Incorporated nor the names of
// its contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// This is part of revision 9453 of the Stellaris Firmware Development Package.
//
//*****************************************************************************
#ifndef STELLARIS_HW_I2C_H_
#define STELLARIS_HW_I2C_H_
#ifdef __cplusplus
extern "C" {
#endif
//*****************************************************************************
//
// The following are defines for the I2C register offsets.
//
//*****************************************************************************
#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_SOAR2 0x0000001C // I2C Slave Own Address 2
#define I2C_O_MCR 0x00000020 // I2C Master Configuration
#define I2C_O_SACKCTL 0x00000020 // I2C Slave ACK Control
#define I2C_O_MCLKOCNT 0x00000024 // I2C Master Clock Low Timeout
// Count
#define I2C_O_MBMON 0x0000002C // I2C Master Bus Monitor
#define I2C_O_PP 0x00000FC0 // I2C Peripheral Properties
#define I2C_O_PC 0x00000FC4 // I2C Peripheral 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_QCMDRW 0x00000020 // Quick Command Read / Write
#define I2C_SCSR_QCMDST 0x00000010 // Quick Command Status
#define I2C_SCSR_OAR2SEL 0x00000008 // OAR2 Address Matched
#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_CLKTO 0x00000080 // Clock Timeout Error
#define I2C_MCS_BUSBSY 0x00000040 // Bus Busy
#define I2C_MCS_IDLE 0x00000020 // I2C Idle
#define I2C_MCS_QCMD 0x00000020 // Quick Command
#define I2C_MCS_ARBLST 0x00000010 // Arbitration Lost
#define I2C_MCS_HS 0x00000010 // High-Speed Enable
#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_ERROR 0x00000002 // Error
#define I2C_MCS_START 0x00000002 // Generate START
#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_HS 0x00000080 // High-Speed Enable
#define I2C_MTPR_TPR_M 0x0000007F // 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_CLKIM 0x00000002 // Clock Timeout Interrupt Mask
#define I2C_MIMR_IM 0x00000001 // Master Interrupt Mask
//*****************************************************************************
//
// The following are defines for the bit fields in the I2C_O_MRIS register.
//
//*****************************************************************************
#define I2C_MRIS_CLKRIS 0x00000002 // Clock Timeout Raw Interrupt
// Status
#define I2C_MRIS_RIS 0x00000001 // Master 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 Interrupt Clear
//*****************************************************************************
//
// The following are defines for the bit fields in the I2C_O_MMIS register.
//
//*****************************************************************************
#define I2C_MMIS_CLKMIS 0x00000002 // Clock Timeout Masked Interrupt
// Status
#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_CLKIC 0x00000002 // Clock Timeout Interrupt Clear
#define I2C_MICR_IC 0x00000001 // Master Interrupt Clear
//*****************************************************************************
//
// The following are defines for the bit fields in the I2C_O_SOAR2 register.
//
//*****************************************************************************
#define I2C_SOAR2_OAR2EN 0x00000080 // I2C Slave Own Address 2 Enable
#define I2C_SOAR2_OAR2_M 0x0000007F // I2C Slave Own Address 2
#define I2C_SOAR2_OAR2_S 0
//*****************************************************************************
//
// 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 are defines for the bit fields in the I2C_O_SACKCTL register.
//
//*****************************************************************************
#define I2C_SACKCTL_ACKOVAL 0x00000002 // I2C Slave ACK Override Value
#define I2C_SACKCTL_ACKOEN 0x00000001 // I2C Slave ACK Override Enable
//*****************************************************************************
//
// The following are defines for the bit fields in the I2C_O_MCLKOCNT register.
//
//*****************************************************************************
#define I2C_MCLKOCNT_CNTL_M 0x000000FF // I2C Master Count
#define I2C_MCLKOCNT_CNTL_S 0
//*****************************************************************************
//
// The following are defines for the bit fields in the I2C_O_MBMON register.
//
//*****************************************************************************
#define I2C_MBMON_SDA 0x00000002 // I2C SDA Status
#define I2C_MBMON_SCL 0x00000001 // I2C SCL Status
//*****************************************************************************
//
// The following are defines for the bit fields in the I2C_O_PP register.
//
//*****************************************************************************
#define I2C_PP_HS 0x00000001 // High-Speed Capable
//*****************************************************************************
//
// The following are defines for the bit fields in the I2C_O_PC register.
//
//*****************************************************************************
#define I2C_PC_HS 0x00000001 // High-Speed Capable
//*****************************************************************************
//
// The following definitions are deprecated.
//
//*****************************************************************************
#ifndef DEPRECATED
//*****************************************************************************
//
// The following are deprecated defines for the I2C register offsets.
//
//*****************************************************************************
#define I2C_O_SLAVE 0x00000800 // Offset from master to slave
//*****************************************************************************
//
// 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
//*****************************************************************************
//
// 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
#endif
#ifdef __cplusplus
}
#endif
#endif /* STELLARIS_HW_I2C_H_ */