hw_uart.h

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//*****************************************************************************
//
// hw_uart.h - Macros and defines used when accessing the UART hardware.
//
// Copyright (c) 2005-2014 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 2.1.0.12573 of the Tiva Firmware Development Package.
//
//*****************************************************************************

#ifndef __HW_UART_H__
#define __HW_UART_H__

//*****************************************************************************
//
// The following are defines for the UART register offsets.
//
//*****************************************************************************
#define UART_O_DR               0x00000000  // UART Data
#define UART_O_RSR              0x00000004  // UART Receive Status/Error Clear
#define UART_O_ECR              0x00000004  // UART Receive Status/Error Clear
#define UART_O_FR               0x00000018  // UART Flag
#define UART_O_ILPR             0x00000020  // UART IrDA Low-Power Register
#define UART_O_IBRD             0x00000024  // UART Integer Baud-Rate Divisor
#define UART_O_FBRD             0x00000028  // UART Fractional Baud-Rate
                                            // Divisor
#define UART_O_LCRH             0x0000002C  // UART Line Control
#define UART_O_CTL              0x00000030  // UART Control
#define UART_O_IFLS             0x00000034  // UART Interrupt FIFO Level Select
#define UART_O_IM               0x00000038  // UART Interrupt Mask
#define UART_O_RIS              0x0000003C  // UART Raw Interrupt Status
#define UART_O_MIS              0x00000040  // UART Masked Interrupt Status
#define UART_O_ICR              0x00000044  // UART Interrupt Clear
#define UART_O_DMACTL           0x00000048  // UART DMA Control
#define UART_O_9BITADDR         0x000000A4  // UART 9-Bit Self Address
#define UART_O_9BITAMASK        0x000000A8  // UART 9-Bit Self Address Mask
#define UART_O_PP               0x00000FC0  // UART Peripheral Properties
#define UART_O_CC               0x00000FC8  // UART Clock Configuration

//*****************************************************************************
//
// The following are defines for the bit fields in the UART_O_DR register.
//
//*****************************************************************************
#define UART_DR_OE              0x00000800  // UART Overrun Error
#define UART_DR_BE              0x00000400  // UART Break Error
#define UART_DR_PE              0x00000200  // UART Parity Error
#define UART_DR_FE              0x00000100  // UART Framing Error
#define UART_DR_DATA_M          0x000000FF  // Data Transmitted or Received
#define UART_DR_DATA_S          0

//*****************************************************************************
//
// The following are defines for the bit fields in the UART_O_RSR register.
//
//*****************************************************************************
#define UART_RSR_OE             0x00000008  // UART Overrun Error
#define UART_RSR_BE             0x00000004  // UART Break Error
#define UART_RSR_PE             0x00000002  // UART Parity Error
#define UART_RSR_FE             0x00000001  // UART Framing Error

//*****************************************************************************
//
// The following are defines for the bit fields in the UART_O_ECR register.
//
//*****************************************************************************
#define UART_ECR_DATA_M         0x000000FF  // Error Clear
#define UART_ECR_DATA_S         0

//*****************************************************************************
//
// The following are defines for the bit fields in the UART_O_FR register.
//
//*****************************************************************************
#define UART_FR_RI              0x00000100  // Ring Indicator
#define UART_FR_TXFE            0x00000080  // UART Transmit FIFO Empty
#define UART_FR_RXFF            0x00000040  // UART Receive FIFO Full
#define UART_FR_TXFF            0x00000020  // UART Transmit FIFO Full
#define UART_FR_RXFE            0x00000010  // UART Receive FIFO Empty
#define UART_FR_BUSY            0x00000008  // UART Busy
#define UART_FR_DCD             0x00000004  // Data Carrier Detect
#define UART_FR_DSR             0x00000002  // Data Set Ready
#define UART_FR_CTS             0x00000001  // Clear To Send

//*****************************************************************************
//
// The following are defines for the bit fields in the UART_O_ILPR register.
//
//*****************************************************************************
#define UART_ILPR_ILPDVSR_M     0x000000FF  // IrDA Low-Power Divisor
#define UART_ILPR_ILPDVSR_S     0

//*****************************************************************************
//
// The following are defines for the bit fields in the UART_O_IBRD register.
//
//*****************************************************************************
#define UART_IBRD_DIVINT_M      0x0000FFFF  // Integer Baud-Rate Divisor
#define UART_IBRD_DIVINT_S      0

//*****************************************************************************
//
// The following are defines for the bit fields in the UART_O_FBRD register.
//
//*****************************************************************************
#define UART_FBRD_DIVFRAC_M     0x0000003F  // Fractional Baud-Rate Divisor
#define UART_FBRD_DIVFRAC_S     0

//*****************************************************************************
//
// The following are defines for the bit fields in the UART_O_LCRH register.
//
//*****************************************************************************
#define UART_LCRH_SPS           0x00000080  // UART Stick Parity Select
#define UART_LCRH_WLEN_M        0x00000060  // UART Word Length
#define UART_LCRH_WLEN_5        0x00000000  // 5 bits (default)
#define UART_LCRH_WLEN_6        0x00000020  // 6 bits
#define UART_LCRH_WLEN_7        0x00000040  // 7 bits
#define UART_LCRH_WLEN_8        0x00000060  // 8 bits
#define UART_LCRH_FEN           0x00000010  // UART Enable FIFOs
#define UART_LCRH_STP2          0x00000008  // UART Two Stop Bits Select
#define UART_LCRH_EPS           0x00000004  // UART Even Parity Select
#define UART_LCRH_PEN           0x00000002  // UART Parity Enable
#define UART_LCRH_BRK           0x00000001  // UART Send Break

//*****************************************************************************
//
// The following are defines for the bit fields in the UART_O_CTL register.
//
//*****************************************************************************
#define UART_CTL_CTSEN          0x00008000  // Enable Clear To Send
#define UART_CTL_RTSEN          0x00004000  // Enable Request to Send
#define UART_CTL_RTS            0x00000800  // Request to Send
#define UART_CTL_DTR            0x00000400  // Data Terminal Ready
#define UART_CTL_RXE            0x00000200  // UART Receive Enable
#define UART_CTL_TXE            0x00000100  // UART Transmit Enable
#define UART_CTL_LBE            0x00000080  // UART Loop Back Enable
#define UART_CTL_HSE            0x00000020  // High-Speed Enable
#define UART_CTL_EOT            0x00000010  // End of Transmission
#define UART_CTL_SMART          0x00000008  // ISO 7816 Smart Card Support
#define UART_CTL_SIRLP          0x00000004  // UART SIR Low-Power Mode
#define UART_CTL_SIREN          0x00000002  // UART SIR Enable
#define UART_CTL_UARTEN         0x00000001  // UART Enable

//*****************************************************************************
//
// The following are defines for the bit fields in the UART_O_IFLS register.
//
//*****************************************************************************
#define UART_IFLS_RX_M          0x00000038  // UART Receive Interrupt FIFO
                                            // Level Select
#define UART_IFLS_RX1_8         0x00000000  // RX FIFO >= 1/8 full
#define UART_IFLS_RX2_8         0x00000008  // RX FIFO >= 1/4 full
#define UART_IFLS_RX4_8         0x00000010  // RX FIFO >= 1/2 full (default)
#define UART_IFLS_RX6_8         0x00000018  // RX FIFO >= 3/4 full
#define UART_IFLS_RX7_8         0x00000020  // RX FIFO >= 7/8 full
#define UART_IFLS_TX_M          0x00000007  // UART Transmit Interrupt FIFO
                                            // Level Select
#define UART_IFLS_TX1_8         0x00000000  // TX FIFO <= 1/8 full
#define UART_IFLS_TX2_8         0x00000001  // TX FIFO <= 1/4 full
#define UART_IFLS_TX4_8         0x00000002  // TX FIFO <= 1/2 full (default)
#define UART_IFLS_TX6_8         0x00000003  // TX FIFO <= 3/4 full
#define UART_IFLS_TX7_8         0x00000004  // TX FIFO <= 7/8 full

//*****************************************************************************
//
// The following are defines for the bit fields in the UART_O_IM register.
//
//*****************************************************************************
#define UART_IM_DMATXIM         0x00020000  // Transmit DMA Interrupt Mask
#define UART_IM_DMARXIM         0x00010000  // Receive DMA Interrupt Mask
#define UART_IM_9BITIM          0x00001000  // 9-Bit Mode Interrupt Mask
#define UART_IM_EOTIM           0x00000800  // End of Transmission Interrupt
                                            // Mask
#define UART_IM_OEIM            0x00000400  // UART Overrun Error Interrupt
                                            // Mask
#define UART_IM_BEIM            0x00000200  // UART Break Error Interrupt Mask
#define UART_IM_PEIM            0x00000100  // UART Parity Error Interrupt Mask
#define UART_IM_FEIM            0x00000080  // UART Framing Error Interrupt
                                            // Mask
#define UART_IM_RTIM            0x00000040  // UART Receive Time-Out Interrupt
                                            // Mask
#define UART_IM_TXIM            0x00000020  // UART Transmit Interrupt Mask
#define UART_IM_RXIM            0x00000010  // UART Receive Interrupt Mask
#define UART_IM_DSRMIM          0x00000008  // UART Data Set Ready Modem
                                            // Interrupt Mask
#define UART_IM_DCDMIM          0x00000004  // UART Data Carrier Detect Modem
                                            // Interrupt Mask
#define UART_IM_CTSMIM          0x00000002  // UART Clear to Send Modem
                                            // Interrupt Mask
#define UART_IM_RIMIM           0x00000001  // UART Ring Indicator Modem
                                            // Interrupt Mask

//*****************************************************************************
//
// The following are defines for the bit fields in the UART_O_RIS register.
//
//*****************************************************************************
#define UART_RIS_DMATXRIS       0x00020000  // Transmit DMA Raw Interrupt
                                            // Status
#define UART_RIS_DMARXRIS       0x00010000  // Receive DMA Raw Interrupt Status
#define UART_RIS_9BITRIS        0x00001000  // 9-Bit Mode Raw Interrupt Status
#define UART_RIS_EOTRIS         0x00000800  // End of Transmission Raw
                                            // Interrupt Status
#define UART_RIS_OERIS          0x00000400  // UART Overrun Error Raw Interrupt
                                            // Status
#define UART_RIS_BERIS          0x00000200  // UART Break Error Raw Interrupt
                                            // Status
#define UART_RIS_PERIS          0x00000100  // UART Parity Error Raw Interrupt
                                            // Status
#define UART_RIS_FERIS          0x00000080  // UART Framing Error Raw Interrupt
                                            // Status
#define UART_RIS_RTRIS          0x00000040  // UART Receive Time-Out Raw
                                            // Interrupt Status
#define UART_RIS_TXRIS          0x00000020  // UART Transmit Raw Interrupt
                                            // Status
#define UART_RIS_RXRIS          0x00000010  // UART Receive Raw Interrupt
                                            // Status
#define UART_RIS_DSRRIS         0x00000008  // UART Data Set Ready Modem Raw
                                            // Interrupt Status
#define UART_RIS_DCDRIS         0x00000004  // UART Data Carrier Detect Modem
                                            // Raw Interrupt Status
#define UART_RIS_CTSRIS         0x00000002  // UART Clear to Send Modem Raw
                                            // Interrupt Status
#define UART_RIS_RIRIS          0x00000001  // UART Ring Indicator Modem Raw
                                            // Interrupt Status

//*****************************************************************************
//
// The following are defines for the bit fields in the UART_O_MIS register.
//
//*****************************************************************************
#define UART_MIS_DMATXMIS       0x00020000  // Transmit DMA Masked Interrupt
                                            // Status
#define UART_MIS_DMARXMIS       0x00010000  // Receive DMA Masked Interrupt
                                            // Status
#define UART_MIS_9BITMIS        0x00001000  // 9-Bit Mode Masked Interrupt
                                            // Status
#define UART_MIS_EOTMIS         0x00000800  // End of Transmission Masked
                                            // Interrupt Status
#define UART_MIS_OEMIS          0x00000400  // UART Overrun Error Masked
                                            // Interrupt Status
#define UART_MIS_BEMIS          0x00000200  // UART Break Error Masked
                                            // Interrupt Status
#define UART_MIS_PEMIS          0x00000100  // UART Parity Error Masked
                                            // Interrupt Status
#define UART_MIS_FEMIS          0x00000080  // UART Framing Error Masked
                                            // Interrupt Status
#define UART_MIS_RTMIS          0x00000040  // UART Receive Time-Out Masked
                                            // Interrupt Status
#define UART_MIS_TXMIS          0x00000020  // UART Transmit Masked Interrupt
                                            // Status
#define UART_MIS_RXMIS          0x00000010  // UART Receive Masked Interrupt
                                            // Status
#define UART_MIS_DSRMIS         0x00000008  // UART Data Set Ready Modem Masked
                                            // Interrupt Status
#define UART_MIS_DCDMIS         0x00000004  // UART Data Carrier Detect Modem
                                            // Masked Interrupt Status
#define UART_MIS_CTSMIS         0x00000002  // UART Clear to Send Modem Masked
                                            // Interrupt Status
#define UART_MIS_RIMIS          0x00000001  // UART Ring Indicator Modem Masked
                                            // Interrupt Status

//*****************************************************************************
//
// The following are defines for the bit fields in the UART_O_ICR register.
//
//*****************************************************************************
#define UART_ICR_DMATXIC        0x00020000  // Transmit DMA Interrupt Clear
#define UART_ICR_DMARXIC        0x00010000  // Receive DMA Interrupt Clear
#define UART_ICR_9BITIC         0x00001000  // 9-Bit Mode Interrupt Clear
#define UART_ICR_EOTIC          0x00000800  // End of Transmission Interrupt
                                            // Clear
#define UART_ICR_OEIC           0x00000400  // Overrun Error Interrupt Clear
#define UART_ICR_BEIC           0x00000200  // Break Error Interrupt Clear
#define UART_ICR_PEIC           0x00000100  // Parity Error Interrupt Clear
#define UART_ICR_FEIC           0x00000080  // Framing Error Interrupt Clear
#define UART_ICR_RTIC           0x00000040  // Receive Time-Out Interrupt Clear
#define UART_ICR_TXIC           0x00000020  // Transmit Interrupt Clear
#define UART_ICR_RXIC           0x00000010  // Receive Interrupt Clear
#define UART_ICR_DSRMIC         0x00000008  // UART Data Set Ready Modem
                                            // Interrupt Clear
#define UART_ICR_DCDMIC         0x00000004  // UART Data Carrier Detect Modem
                                            // Interrupt Clear
#define UART_ICR_CTSMIC         0x00000002  // UART Clear to Send Modem
                                            // Interrupt Clear
#define UART_ICR_RIMIC          0x00000001  // UART Ring Indicator Modem
                                            // Interrupt Clear

//*****************************************************************************
//
// The following are defines for the bit fields in the UART_O_DMACTL register.
//
//*****************************************************************************
#define UART_DMACTL_DMAERR      0x00000004  // DMA on Error
#define UART_DMACTL_TXDMAE      0x00000002  // Transmit DMA Enable
#define UART_DMACTL_RXDMAE      0x00000001  // Receive DMA Enable

//*****************************************************************************
//
// The following are defines for the bit fields in the UART_O_9BITADDR
// register.
//
//*****************************************************************************
#define UART_9BITADDR_9BITEN    0x00008000  // Enable 9-Bit Mode
#define UART_9BITADDR_ADDR_M    0x000000FF  // Self Address for 9-Bit Mode
#define UART_9BITADDR_ADDR_S    0

//*****************************************************************************
//
// The following are defines for the bit fields in the UART_O_9BITAMASK
// register.
//
//*****************************************************************************
#define UART_9BITAMASK_MASK_M   0x000000FF  // Self Address Mask for 9-Bit Mode
#define UART_9BITAMASK_MASK_S   0

//*****************************************************************************
//
// The following are defines for the bit fields in the UART_O_PP register.
//
//*****************************************************************************
#define UART_PP_MSE             0x00000008  // Modem Support Extended
#define UART_PP_MS              0x00000004  // Modem Support
#define UART_PP_NB              0x00000002  // 9-Bit Support
#define UART_PP_SC              0x00000001  // Smart Card Support

//*****************************************************************************
//
// The following are defines for the bit fields in the UART_O_CC register.
//
//*****************************************************************************
#define UART_CC_CS_M            0x0000000F  // UART Baud Clock Source
#define UART_CC_CS_SYSCLK       0x00000000  // System clock (based on clock
                                            // source and divisor factor)
#define UART_CC_CS_PIOSC        0x00000005  // PIOSC

#endif // __HW_UART_H__