hw_ssi.h
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//*****************************************************************************
//
// hw_ssi.h - Macros used when accessing the SSI 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_SSI_H_
#define STELLARIS_HW_SSI_H_
#ifdef __cplusplus
extern "C" {
#endif
//*****************************************************************************
//
// The following are defines for the SSI register offsets.
//
//*****************************************************************************
#define SSI_O_CR0 0x00000000 // SSI Control 0
#define SSI_O_CR1 0x00000004 // SSI Control 1
#define SSI_O_DR 0x00000008 // SSI Data
#define SSI_O_SR 0x0000000C // SSI Status
#define SSI_O_CPSR 0x00000010 // SSI Clock Prescale
#define SSI_O_IM 0x00000014 // SSI Interrupt Mask
#define SSI_O_RIS 0x00000018 // SSI Raw Interrupt Status
#define SSI_O_MIS 0x0000001C // SSI Masked Interrupt Status
#define SSI_O_ICR 0x00000020 // SSI Interrupt Clear
#define SSI_O_DMACTL 0x00000024 // SSI DMA Control
#define SSI_O_CC 0x00000FC8 // SSI Clock Configuration
//*****************************************************************************
//
// The following are defines for the bit fields in the SSI_O_CR0 register.
//
//*****************************************************************************
#define SSI_CR0_SCR_M 0x0000FF00 // SSI Serial Clock Rate
#define SSI_CR0_SPH 0x00000080 // SSI Serial Clock Phase
#define SSI_CR0_SPO 0x00000040 // SSI Serial Clock Polarity
#define SSI_CR0_FRF_M 0x00000030 // SSI Frame Format Select
#define SSI_CR0_FRF_MOTO 0x00000000 // Freescale SPI Frame Format
#define SSI_CR0_FRF_TI 0x00000010 // Texas Instruments Synchronous
// Serial Frame Format
#define SSI_CR0_FRF_NMW 0x00000020 // MICROWIRE Frame Format
#define SSI_CR0_DSS_M 0x0000000F // SSI Data Size Select
#define SSI_CR0_DSS_4 0x00000003 // 4-bit data
#define SSI_CR0_DSS_5 0x00000004 // 5-bit data
#define SSI_CR0_DSS_6 0x00000005 // 6-bit data
#define SSI_CR0_DSS_7 0x00000006 // 7-bit data
#define SSI_CR0_DSS_8 0x00000007 // 8-bit data
#define SSI_CR0_DSS_9 0x00000008 // 9-bit data
#define SSI_CR0_DSS_10 0x00000009 // 10-bit data
#define SSI_CR0_DSS_11 0x0000000A // 11-bit data
#define SSI_CR0_DSS_12 0x0000000B // 12-bit data
#define SSI_CR0_DSS_13 0x0000000C // 13-bit data
#define SSI_CR0_DSS_14 0x0000000D // 14-bit data
#define SSI_CR0_DSS_15 0x0000000E // 15-bit data
#define SSI_CR0_DSS_16 0x0000000F // 16-bit data
#define SSI_CR0_SCR_S 8
//*****************************************************************************
//
// The following are defines for the bit fields in the SSI_O_CR1 register.
//
//*****************************************************************************
#define SSI_CR1_EOT 0x00000010 // End of Transmission
#define SSI_CR1_SOD 0x00000008 // SSI Slave Mode Output Disable
#define SSI_CR1_MS 0x00000004 // SSI Master/Slave Select
#define SSI_CR1_SSE 0x00000002 // SSI Synchronous Serial Port
// Enable
#define SSI_CR1_LBM 0x00000001 // SSI Loopback Mode
//*****************************************************************************
//
// The following are defines for the bit fields in the SSI_O_DR register.
//
//*****************************************************************************
#define SSI_DR_DATA_M 0x0000FFFF // SSI Receive/Transmit Data
#define SSI_DR_DATA_S 0
//*****************************************************************************
//
// The following are defines for the bit fields in the SSI_O_SR register.
//
//*****************************************************************************
#define SSI_SR_BSY 0x00000010 // SSI Busy Bit
#define SSI_SR_RFF 0x00000008 // SSI Receive FIFO Full
#define SSI_SR_RNE 0x00000004 // SSI Receive FIFO Not Empty
#define SSI_SR_TNF 0x00000002 // SSI Transmit FIFO Not Full
#define SSI_SR_TFE 0x00000001 // SSI Transmit FIFO Empty
//*****************************************************************************
//
// The following are defines for the bit fields in the SSI_O_CPSR register.
//
//*****************************************************************************
#define SSI_CPSR_CPSDVSR_M 0x000000FF // SSI Clock Prescale Divisor
#define SSI_CPSR_CPSDVSR_S 0
//*****************************************************************************
//
// The following are defines for the bit fields in the SSI_O_IM register.
//
//*****************************************************************************
#define SSI_IM_TXIM 0x00000008 // SSI Transmit FIFO Interrupt Mask
#define SSI_IM_RXIM 0x00000004 // SSI Receive FIFO Interrupt Mask
#define SSI_IM_RTIM 0x00000002 // SSI Receive Time-Out Interrupt
// Mask
#define SSI_IM_RORIM 0x00000001 // SSI Receive Overrun Interrupt
// Mask
//*****************************************************************************
//
// The following are defines for the bit fields in the SSI_O_RIS register.
//
//*****************************************************************************
#define SSI_RIS_TXRIS 0x00000008 // SSI Transmit FIFO Raw Interrupt
// Status
#define SSI_RIS_RXRIS 0x00000004 // SSI Receive FIFO Raw Interrupt
// Status
#define SSI_RIS_RTRIS 0x00000002 // SSI Receive Time-Out Raw
// Interrupt Status
#define SSI_RIS_RORRIS 0x00000001 // SSI Receive Overrun Raw
// Interrupt Status
//*****************************************************************************
//
// The following are defines for the bit fields in the SSI_O_MIS register.
//
//*****************************************************************************
#define SSI_MIS_TXMIS 0x00000008 // SSI Transmit FIFO Masked
// Interrupt Status
#define SSI_MIS_RXMIS 0x00000004 // SSI Receive FIFO Masked
// Interrupt Status
#define SSI_MIS_RTMIS 0x00000002 // SSI Receive Time-Out Masked
// Interrupt Status
#define SSI_MIS_RORMIS 0x00000001 // SSI Receive Overrun Masked
// Interrupt Status
//*****************************************************************************
//
// The following are defines for the bit fields in the SSI_O_ICR register.
//
//*****************************************************************************
#define SSI_ICR_RTIC 0x00000002 // SSI Receive Time-Out Interrupt
// Clear
#define SSI_ICR_RORIC 0x00000001 // SSI Receive Overrun Interrupt
// Clear
//*****************************************************************************
//
// The following are defines for the bit fields in the SSI_O_DMACTL register.
//
//*****************************************************************************
#define SSI_DMACTL_TXDMAE 0x00000002 // Transmit DMA Enable
#define SSI_DMACTL_RXDMAE 0x00000001 // Receive DMA Enable
//*****************************************************************************
//
// The following are defines for the bit fields in the SSI_O_CC register.
//
//*****************************************************************************
#define SSI_CC_CS_M 0x0000000F // SSI Baud Clock Source
#define SSI_CC_CS_SYSPLL 0x00000000 // Either the system clock (if the
// PLL bypass is in effect) or the
// PLL output (default)
#define SSI_CC_CS_PIOSC 0x00000005 // PIOSC
//*****************************************************************************
//
// The following definitions are deprecated.
//
//*****************************************************************************
#ifndef DEPRECATED
//*****************************************************************************
//
// The following are deprecated defines for the bit fields in the SSI_O_CR0
// register.
//
//*****************************************************************************
#define SSI_CR0_SCR 0x0000FF00 // Serial clock rate
#define SSI_CR0_FRF_MASK 0x00000030 // Frame format mask
#define SSI_CR0_DSS 0x0000000F // Data size select
//*****************************************************************************
//
// The following are deprecated defines for the bit fields in the SSI_O_CPSR
// register.
//
//*****************************************************************************
#define SSI_CPSR_CPSDVSR_MASK 0x000000FF // Clock prescale
//*****************************************************************************
//
// The following are deprecated defines for the SSI controller's FIFO size.
//
//*****************************************************************************
#define TX_FIFO_SIZE (8) // Number of entries in the TX FIFO
#define RX_FIFO_SIZE (8) // Number of entries in the RX FIFO
//*****************************************************************************
//
// The following are deprecated defines for the bit fields in the interrupt
// mask set and clear, raw interrupt, masked interrupt, and interrupt clear
// registers.
//
//*****************************************************************************
#define SSI_INT_TXFF 0x00000008 // TX FIFO interrupt
#define SSI_INT_RXFF 0x00000004 // RX FIFO interrupt
#define SSI_INT_RXTO 0x00000002 // RX timeout interrupt
#define SSI_INT_RXOR 0x00000001 // RX overrun interrupt
#endif
#ifdef __cplusplus
}
#endif
#endif /* STELLARIS_HW_SSI_H_ */