198 lines
10 KiB
C
198 lines
10 KiB
C
//*****************************************************************************
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//
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// hw_ssi.h - Macros used when accessing the SSI hardware.
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//
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// Copyright (c) 2005-2013 Texas Instruments Incorporated. All rights reserved.
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// Software License Agreement
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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//
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// Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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//
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// Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the
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// distribution.
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//
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// Neither the name of Texas Instruments Incorporated nor the names of
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// its contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// This is part of revision 1.1 of the Tiva Firmware Development Package.
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//
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//*****************************************************************************
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#ifndef __HW_SSI_H__
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#define __HW_SSI_H__
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//*****************************************************************************
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//
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// The following are defines for the SSI register offsets.
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//
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//*****************************************************************************
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#define SSI_O_CR0 0x00000000 // SSI Control 0
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#define SSI_O_CR1 0x00000004 // SSI Control 1
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#define SSI_O_DR 0x00000008 // SSI Data
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#define SSI_O_SR 0x0000000C // SSI Status
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#define SSI_O_CPSR 0x00000010 // SSI Clock Prescale
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#define SSI_O_IM 0x00000014 // SSI Interrupt Mask
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#define SSI_O_RIS 0x00000018 // SSI Raw Interrupt Status
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#define SSI_O_MIS 0x0000001C // SSI Masked Interrupt Status
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#define SSI_O_ICR 0x00000020 // SSI Interrupt Clear
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#define SSI_O_DMACTL 0x00000024 // SSI DMA Control
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#define SSI_O_CC 0x00000FC8 // SSI Clock Configuration
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//*****************************************************************************
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//
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// The following are defines for the bit fields in the SSI_O_CR0 register.
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//
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//*****************************************************************************
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#define SSI_CR0_SCR_M 0x0000FF00 // SSI Serial Clock Rate
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#define SSI_CR0_SPH 0x00000080 // SSI Serial Clock Phase
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#define SSI_CR0_SPO 0x00000040 // SSI Serial Clock Polarity
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#define SSI_CR0_FRF_M 0x00000030 // SSI Frame Format Select
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#define SSI_CR0_FRF_MOTO 0x00000000 // Freescale SPI Frame Format
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#define SSI_CR0_FRF_TI 0x00000010 // Texas Instruments Synchronous
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// Serial Frame Format
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#define SSI_CR0_FRF_NMW 0x00000020 // MICROWIRE Frame Format
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#define SSI_CR0_DSS_M 0x0000000F // SSI Data Size Select
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#define SSI_CR0_DSS_4 0x00000003 // 4-bit data
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#define SSI_CR0_DSS_5 0x00000004 // 5-bit data
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#define SSI_CR0_DSS_6 0x00000005 // 6-bit data
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#define SSI_CR0_DSS_7 0x00000006 // 7-bit data
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#define SSI_CR0_DSS_8 0x00000007 // 8-bit data
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#define SSI_CR0_DSS_9 0x00000008 // 9-bit data
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#define SSI_CR0_DSS_10 0x00000009 // 10-bit data
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#define SSI_CR0_DSS_11 0x0000000A // 11-bit data
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#define SSI_CR0_DSS_12 0x0000000B // 12-bit data
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#define SSI_CR0_DSS_13 0x0000000C // 13-bit data
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#define SSI_CR0_DSS_14 0x0000000D // 14-bit data
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#define SSI_CR0_DSS_15 0x0000000E // 15-bit data
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#define SSI_CR0_DSS_16 0x0000000F // 16-bit data
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#define SSI_CR0_SCR_S 8
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//*****************************************************************************
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//
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// The following are defines for the bit fields in the SSI_O_CR1 register.
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//
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//*****************************************************************************
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#define SSI_CR1_EOT 0x00000010 // End of Transmission
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#define SSI_CR1_SOD 0x00000008 // SSI Slave Mode Output Disable
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#define SSI_CR1_MS 0x00000004 // SSI Master/Slave Select
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#define SSI_CR1_SSE 0x00000002 // SSI Synchronous Serial Port
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// Enable
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#define SSI_CR1_LBM 0x00000001 // SSI Loopback Mode
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//*****************************************************************************
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//
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// The following are defines for the bit fields in the SSI_O_DR register.
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//
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//*****************************************************************************
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#define SSI_DR_DATA_M 0x0000FFFF // SSI Receive/Transmit Data
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#define SSI_DR_DATA_S 0
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//*****************************************************************************
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//
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// The following are defines for the bit fields in the SSI_O_SR register.
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//
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//*****************************************************************************
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#define SSI_SR_BSY 0x00000010 // SSI Busy Bit
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#define SSI_SR_RFF 0x00000008 // SSI Receive FIFO Full
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#define SSI_SR_RNE 0x00000004 // SSI Receive FIFO Not Empty
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#define SSI_SR_TNF 0x00000002 // SSI Transmit FIFO Not Full
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#define SSI_SR_TFE 0x00000001 // SSI Transmit FIFO Empty
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//*****************************************************************************
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//
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// The following are defines for the bit fields in the SSI_O_CPSR register.
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//
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//*****************************************************************************
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#define SSI_CPSR_CPSDVSR_M 0x000000FF // SSI Clock Prescale Divisor
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#define SSI_CPSR_CPSDVSR_S 0
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//*****************************************************************************
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//
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// The following are defines for the bit fields in the SSI_O_IM register.
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//
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//*****************************************************************************
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#define SSI_IM_TXIM 0x00000008 // SSI Transmit FIFO Interrupt Mask
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#define SSI_IM_RXIM 0x00000004 // SSI Receive FIFO Interrupt Mask
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#define SSI_IM_RTIM 0x00000002 // SSI Receive Time-Out Interrupt
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// Mask
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#define SSI_IM_RORIM 0x00000001 // SSI Receive Overrun Interrupt
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// Mask
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//*****************************************************************************
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//
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// The following are defines for the bit fields in the SSI_O_RIS register.
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//
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//*****************************************************************************
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#define SSI_RIS_TXRIS 0x00000008 // SSI Transmit FIFO Raw Interrupt
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// Status
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#define SSI_RIS_RXRIS 0x00000004 // SSI Receive FIFO Raw Interrupt
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// Status
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#define SSI_RIS_RTRIS 0x00000002 // SSI Receive Time-Out Raw
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// Interrupt Status
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#define SSI_RIS_RORRIS 0x00000001 // SSI Receive Overrun Raw
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// Interrupt Status
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//*****************************************************************************
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//
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// The following are defines for the bit fields in the SSI_O_MIS register.
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//
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//*****************************************************************************
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#define SSI_MIS_TXMIS 0x00000008 // SSI Transmit FIFO Masked
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// Interrupt Status
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#define SSI_MIS_RXMIS 0x00000004 // SSI Receive FIFO Masked
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// Interrupt Status
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#define SSI_MIS_RTMIS 0x00000002 // SSI Receive Time-Out Masked
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// Interrupt Status
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#define SSI_MIS_RORMIS 0x00000001 // SSI Receive Overrun Masked
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// Interrupt Status
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//*****************************************************************************
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//
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// The following are defines for the bit fields in the SSI_O_ICR register.
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//
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//*****************************************************************************
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#define SSI_ICR_RTIC 0x00000002 // SSI Receive Time-Out Interrupt
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// Clear
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#define SSI_ICR_RORIC 0x00000001 // SSI Receive Overrun Interrupt
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// Clear
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//*****************************************************************************
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//
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// The following are defines for the bit fields in the SSI_O_DMACTL register.
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//
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//*****************************************************************************
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#define SSI_DMACTL_TXDMAE 0x00000002 // Transmit DMA Enable
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#define SSI_DMACTL_RXDMAE 0x00000001 // Receive DMA Enable
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//*****************************************************************************
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//
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// The following are defines for the bit fields in the SSI_O_CC register.
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//
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//*****************************************************************************
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#define SSI_CC_CS_M 0x0000000F // SSI Baud Clock Source
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#define SSI_CC_CS_SYSPLL 0x00000000 // Either the system clock (if the
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// PLL bypass is in effect) or the
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// PLL output (default)
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#define SSI_CC_CS_PIOSC 0x00000005 // PIOSC
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#endif // __HW_SSI_H__
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