lh7a404_timer.h

在sharp 404开发板的串口测试代码

/***********************************************************************
 * $Workfile:   lh7a404_timer.h  $
 * $Revision:   1.0  $
 * $Author:   WellsK  $
 * $Date:   Jun 30 2003 16:28:52  $
 *
 * Project: LH7A404 timer definitions
 *
 * Description:
 *     This file contains the structure definitions and manifest
 *     constants for LH7A404 component:
 *         Timers
 *
 * Revision History:
 * $Log:   //smaicnt2/pvcs/VM/sharpmcu/archives/sharpmcu/software/csps/lh7a404/include/lh7a404_timer.h-arc  $
 * 
 *    Rev 1.0   Jun 30 2003 16:28:52   WellsK
 * Initial revision.
 * 
 * 
 ***********************************************************************
 * SHARP MICROELECTRONICS OF THE AMERICAS MAKES NO REPRESENTATION
 * OR WARRANTIES WITH RESPECT TO THE PERFORMANCE OF THIS SOFTWARE,
 * AND SPECIFICALLY DISCLAIMS ANY RESPONSIBILITY FOR ANY DAMAGES, 
 * SPECIAL OR CONSEQUENTIAL, CONNECTED WITH THE USE OF THIS SOFTWARE.
 *
 * SHARP MICROELECTRONICS OF THE AMERICAS PROVIDES THIS SOFTWARE SOLELY 
 * FOR THE PURPOSE OF SOFTWARE DEVELOPMENT INCORPORATING THE USE OF A 
 * SHARP MICROCONTROLLER OR SYSTEM-ON-CHIP PRODUCT. USE OF THIS SOURCE
 * FILE IMPLIES ACCEPTANCE OF THESE CONDITIONS.
 *
 * COPYRIGHT (C) 2001 SHARP MICROELECTRONICS OF THE AMERICAS, INC.
 *     CAMAS, WA
 **********************************************************************/

#ifndef LH7A404_TIMER_H
#define LH7A404_TIMER_H

#include "abl_types.h"
#include "lh7a404_chip.h"

/***********************************************************************
 * Timers Module Register Structure
 **********************************************************************/

/* Timer Module Register Structure (for all timers) */ 
typedef struct
{
    volatile UNS_32  load;     /* Timer load value */
    volatile UNS_32  value;    /* Timer current count value */
    volatile UNS_32  control;  /* Timer control word */
    volatile UNS_32  clear;    /* Timer interrupt clear register */
} TIMER_REGS_T;

/***********************************************************************
 * Timer Load register defines
 **********************************************************************/

/* Timer maximum count value */
#define TIMER_MAXCOUNT       0xFFFF
/* Timer load value macro */
#define	TIMER_LOAD(n)        ((n) & TIMER_MAXCOUNT)

/**********************************************************************
 * Timer Control register defines
 *********************************************************************/

#define TIMER_CTRL_ENABLE    0x80 /* Timer enable macro */
#define TIMER_CTRL_DISABLE   0x00 /* Timer disable macro */
#define TIMER_CTRL_PERIODIC  0x40 /* Timer periodic mode macro */
#define TIMER_CTRL_FREERUN   0x00 /* Timer freerun mode macro */
#define TIMER_CTRL_508K      0x08 /* Timer 508KHz clock source macro */
#define TIMER_CTRL_2K        0x00 /* Timer 2KHz clock source macro */

/**********************************************************************
 * Buzzer Control (timers) register defines
 *********************************************************************/ 

#define	BZCONT_BZMOD         0x2  /* Timer 1 buzzer signal enable */
#define	BZCONT_BZTOG         0x1  /* Set state of buzzer (BZTOG) */

/* Macro pointing to timer registers at timer 1 base address */
#define TIMER1 ((TIMER_REGS_T *)(TIMER1_BASE))
/* Macro pointing to timer registers registers at timer 3 base address */
#define TIMER2 ((TIMER_REGS_T *)(TIMER2_BASE))
/* Macro pointing to timer registers at timer 3 base address */
#define TIMER3 ((TIMER_REGS_T *)(TIMER3_BASE))
/* Macro pointing to buzzer control register */
#define BZCONT * ((UNS_32 *)(BZCONT_BASE))

#endif /* LH7A404_TIMER_H */