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/************************************************************************************
* arch/hc/src/m9s12/m9s12_spi.h (v3)
*
* Copyright (C) 2010-2011 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
* 3. Neither the name NuttX 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.
*
************************************************************************************/
#ifndef __ARCH_ARM_HC_SRC_M9S12_M9S12_SPI_H
#define __ARCH_ARM_HC_SRC_M9S12_M9S12_SPI_H
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
#include "chip.h"
/************************************************************************************
* Definitions
************************************************************************************/
/* Register Offsets *****************************************************************/
#define HCS12_SPI_CR1_OFFSET 0x00 /* SPI Control Register 1 */
#define HCS12_SPI_CR2_OFFSET 0x01 /* SPI Control Register 2 */
#define HCS12_SPI_BR_OFFSET 0x02 /* SPI Baud Rate Register */
#define HCS12_SPI_SR_OFFSET 0x03 /* SPI Status Register */
#define HCS12_SPI_DR_OFFSET 0x05 /* SPI Data Register */
/* Register Addresses ***************************************************************/
#define HCS12_SPI_CR1 (HCS12_REG_BASE+HCS12_SPI_BASE+HCS12_SPI_CR1_OFFSET)
#define HCS12_SPI_CR2 (HCS12_REG_BASE+HCS12_SPI_BASE+HCS12_SPI_CR2_OFFSET)
#define HCS12_SPI_BR (HCS12_REG_BASE+HCS12_SPI_BASE+HCS12_SPI_BR_OFFSET)
#define HCS12_SPI_SR (HCS12_REG_BASE+HCS12_SPI_BASE+HCS12_SPI_SR_OFFSET)
#define HCS12_SPI_DR (HCS12_REG_BASE+HCS12_SPI_BASE+HCS12_SPI_DR_OFFSET)
/* Register Bit-Field Definitions ***************************************************/
/* SPI Control Register 1 Bit-Field Definitions */
#define SPI_CR1_LSBFE (1 << 0) /* Bit 0: LSB-First Enable */
#define SPI_CR1_SSOE (1 << 1) /* Bit 1: Slave Select Output Enable */
#define SPI_CR1_CPHA (1 << 2) /* Bit 2: SPI Clock Phase */
#define SPI_CR1_CPOL (1 << 3) /* Bit 3: SPI Clock Polarity */
#define SPI_CR1_MSTR (1 << 4) /* Bit 4: SPI Master/Slave Mode Select */
#define SPI_CR1_SPTIE (1 << 5) /* Bit 5: SPI Transmit Interrupt Enable */
#define SPI_CR1_SPE (1 << 6) /* Bit 6: SPI System Enable */
#define SPI_CR1_SPIE (1 << 7) /* Bit 7: SPI Interrupt Enable */
/* SPI Control Register 2 Bit-Field Definitions */
#define SPI_CR2_SPC0 (1 << 0) /* Bit 0: Serial Pin Control Bit 0 */
#define SPI_CR2_SPISWAI (1 << 1) /* Bit 1: SPI Stop in Wait Mode */
#define SPI_CR2_BIDIROE (1 << 3) /* Bit 3: Output Enable in the Bidirectional */
#define SPI_CR2_MODFEN (1 << 4) /* Bit 4: Mode Fault Enable */
/* SPI Baud Rate Register Bit-Field Definitions */
#define SPI_BR_SPR_SHIFT (0) /* Bits 0-2: SPI Baud Rate Selection */
#define SPI_BR_SPR_MASK (7 << SPI_BR_SPR_SHIFT)
#define SPI_BR_SPPR_SHIFT (4) /* Bits 4-6: SPI Baud Rate Preselection */
#define SPI_BR_SPPR_MASK (7 << SPI_BR_SPPR_SHIFT)
/* SPI Status Register Bit-Field Definitions */
#define SPI_SR_MODF (1 << 4) /* Bit 4: Mode Fault */
#define SPI_SR_SPTEF (1 << 5) /* Bit 5: SPI Transmit Empty Interrupt */
#define SPI_SR_SPIF (1 << 7) /* Bit 7: SPIF Interrupt */
/* SPI Data Register Bit-Field Definitions */
/* 8-bit SPI data register */
/************************************************************************************
* Public Types
************************************************************************************/
/************************************************************************************
* Public Data
************************************************************************************/
/************************************************************************************
* Public Functions
************************************************************************************/
#endif /* __ARCH_ARM_HC_SRC_M9S12_M9S12_SPI_H */
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