s12spi.h

基于freescale MC9S12XF512 MCU

/*******************************************************************************/
/**
Copyright (c) 2007 Freescale Semiconductor
Freescale Confidential Proprietary
\file       S12SPI.h
\brief      S12XF512 Serial Peripheral Interface module definitions 
\author     Freescale Semiconductor
\author     Guadalajara Applications Laboratory RTAC Americas
\author     Jaime Orozco
\version    1.0
\date       March/09/2007
*/
/*******************************************************************************/
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/*******************************************************************************/


#ifndef S12SPI_H         /*prevent duplicated includes */
#define S12SPI_H


/*** SPI0CR1 - SPI 0 Control Register; 0x000000D8 ***/
typedef union {
  byte Byte;
  struct {
    byte LSBFE       :1;                                       /* SPI LSB-First Enable */
    byte SSOE        :1;                                       /* Slave Select Output Enable */
    byte CPHA        :1;                                       /* SPI Clock Phase Bit */
    byte CPOL        :1;                                       /* SPI Clock Polarity Bit */
    byte MSTR        :1;                                       /* SPI Master/Slave Mode Select Bit */
    byte SPTIE       :1;                                       /* SPI Transmit Interrupt Enable */
    byte SPE         :1;                                       /* SPI System Enable Bit */
    byte SPIE        :1;                                       /* SPI Interrupt Enable Bit */
  } Bits;
} SPI0CR1STR;
extern volatile SPI0CR1STR _SPI0CR1 @(REG_BASE + 0x000000D8);
#define SPI0CR1                         _SPI0CR1.Byte
#define SPI0CR1_LSBFE                   _SPI0CR1.Bits.LSBFE
#define SPI0CR1_SSOE                    _SPI0CR1.Bits.SSOE
#define SPI0CR1_CPHA                    _SPI0CR1.Bits.CPHA
#define SPI0CR1_CPOL                    _SPI0CR1.Bits.CPOL
#define SPI0CR1_MSTR                    _SPI0CR1.Bits.MSTR
#define SPI0CR1_SPTIE                   _SPI0CR1.Bits.SPTIE
#define SPI0CR1_SPE                     _SPI0CR1.Bits.SPE
#define SPI0CR1_SPIE                    _SPI0CR1.Bits.SPIE

#define SPI0CR1_LSBFE_MASK              1
#define SPI0CR1_SSOE_MASK               2
#define SPI0CR1_CPHA_MASK               4
#define SPI0CR1_CPOL_MASK               8
#define SPI0CR1_MSTR_MASK               16
#define SPI0CR1_SPTIE_MASK              32
#define SPI0CR1_SPE_MASK                64
#define SPI0CR1_SPIE_MASK               128


/*** SPI0CR2 - SPI 0 Control Register 2; 0x000000D9 ***/
typedef union {
  byte Byte;
  struct {
    byte SPC0        :1;                                       /* Serial Pin Control Bit 0 */
    byte SPISWAI     :1;                                       /* SPI Stop in Wait Mode Bit */
    byte             :1; 
    byte BIDIROE     :1;                                       /* Output enable in the Bidirectional mode of operation */
    byte MODFEN      :1;                                       /* Mode Fault Enable Bit */
    byte             :1; 
    byte XFRW        :1;                                       /* Transfer data width */
    byte             :1; 
  } Bits;
} SPI0CR2STR;
extern volatile SPI0CR2STR _SPI0CR2 @(REG_BASE + 0x000000D9);
#define SPI0CR2                         _SPI0CR2.Byte
#define SPI0CR2_SPC0                    _SPI0CR2.Bits.SPC0
#define SPI0CR2_SPISWAI                 _SPI0CR2.Bits.SPISWAI
#define SPI0CR2_BIDIROE                 _SPI0CR2.Bits.BIDIROE
#define SPI0CR2_MODFEN                  _SPI0CR2.Bits.MODFEN
#define SPI0CR2_XFRW                    _SPI0CR2.Bits.XFRW

#define SPI0CR2_SPC0_MASK               1
#define SPI0CR2_SPISWAI_MASK            2
#define SPI0CR2_BIDIROE_MASK            8
#define SPI0CR2_MODFEN_MASK             16
#define SPI0CR2_XFRW_MASK               64


/*** SPI0BR - SPI 0 Baud Rate Register; 0x000000DA ***/
typedef union {
  byte Byte;
  struct {
    byte SPR0        :1;                                       /* SPI Baud Rate Selection Bit 0 */
    byte SPR1        :1;                                       /* SPI Baud Rate Selection Bit 1 */
    byte SPR2        :1;                                       /* SPI Baud Rate Selection Bit 2 */
    byte             :1; 
    byte SPPR0       :1;                                       /* SPI Baud Rate Preselection Bits 0 */
    byte SPPR1       :1;                                       /* SPI Baud Rate Preselection Bits 1 */
    byte SPPR2       :1;                                       /* SPI Baud Rate Preselection Bits 2 */
    byte             :1; 
  } Bits;
  struct {
    byte grpSPR  :3;
    byte         :1;
    byte grpSPPR :3;
    byte         :1;
  } MergedBits;
} SPI0BRSTR;
extern volatile SPI0BRSTR _SPI0BR @(REG_BASE + 0x000000DA);
#define SPI0BR                          _SPI0BR.Byte
#define SPI0BR_SPR0                     _SPI0BR.Bits.SPR0
#define SPI0BR_SPR1                     _SPI0BR.Bits.SPR1
#define SPI0BR_SPR2                     _SPI0BR.Bits.SPR2
#define SPI0BR_SPPR0                    _SPI0BR.Bits.SPPR0
#define SPI0BR_SPPR1                    _SPI0BR.Bits.SPPR1
#define SPI0BR_SPPR2                    _SPI0BR.Bits.SPPR2
#define SPI0BR_SPR                      _SPI0BR.MergedBits.grpSPR
#define SPI0BR_SPPR                     _SPI0BR.MergedBits.grpSPPR

#define SPI0BR_SPR0_MASK                1
#define SPI0BR_SPR1_MASK                2
#define SPI0BR_SPR2_MASK                4
#define SPI0BR_SPPR0_MASK               16
#define SPI0BR_SPPR1_MASK               32
#define SPI0BR_SPPR2_MASK               64
#define SPI0BR_SPR_MASK                 7
#define SPI0BR_SPR_BITNUM               0
#define SPI0BR_SPPR_MASK                112
#define SPI0BR_SPPR_BITNUM              4


/*** SPI0SR - SPI 0 Status Register; 0x000000DB ***/
typedef union {
  byte Byte;
  struct {
    byte             :1; 
    byte             :1; 
    byte             :1; 
    byte             :1; 
    byte MODF        :1;                                       /* Mode Fault Flag */
    byte SPTEF       :1;                                       /* SPI Transmit Empty Interrupt Flag */