mcf5445x_pit.h

Freescale MCF5445evb 参考测试代码

/*
 * File:    mcf5445x_pit.h
 * Purpose: Register and bit definitions
 */

#ifndef __MCF5445X_PIT_H__
#define __MCF5445X_PIT_H__

/*********************************************************************
*
* Programmable Interrupt Timer Modules (PIT)
*
*********************************************************************/

/* Register read/write macros */
#define MCF_PIT0_PCSR           (*(vuint16*)(0xFC080000))   
#define MCF_PIT0_PMR            (*(vuint16*)(0xFC080002))   
#define MCF_PIT0_PCNTR          (*(vuint16*)(0xFC080004))   
#define MCF_PIT1_PCSR           (*(vuint16*)(0xFC084000))   
#define MCF_PIT1_PMR            (*(vuint16*)(0xFC084002))   
#define MCF_PIT1_PCNTR          (*(vuint16*)(0xFC084004))   
#define MCF_PIT2_PCSR           (*(vuint16*)(0xFC088000))   
#define MCF_PIT2_PMR            (*(vuint16*)(0xFC088002))   
#define MCF_PIT2_PCNTR          (*(vuint16*)(0xFC088004))   
#define MCF_PIT3_PCSR           (*(vuint16*)(0xFC08C000))   
#define MCF_PIT3_PMR            (*(vuint16*)(0xFC08C002))   
#define MCF_PIT3_PCNTR          (*(vuint16*)(0xFC08C004))   

/* Parameterized register read/write macros for multiple modules */
#define MCF_PIT_PCSR(x)         (*(vuint16*)(0xFC080000 + ((x)*0x4000)))    
#define MCF_PIT_PMR(x)          (*(vuint16*)(0xFC080002 + ((x)*0x4000)))    
#define MCF_PIT_PCNTR(x)        (*(vuint16*)(0xFC080004 + ((x)*0x4000)))    

/* Bit definitions and macros for PCSR */
#define MCF_PIT_PCSR_EN         (0x0001)            
#define MCF_PIT_PCSR_RLD        (0x0002)            
#define MCF_PIT_PCSR_PIF        (0x0004)            
#define MCF_PIT_PCSR_PIE        (0x0008)            
#define MCF_PIT_PCSR_OVW        (0x0010)            
#define MCF_PIT_PCSR_HALTED     (0x0020)            
#define MCF_PIT_PCSR_DOZE       (0x0040)            
#define MCF_PIT_PCSR_PRE(x)     (((x)&0x000F)<<8)   

/* Bit definitions and macros for PMR */
#define MCF_PIT_PMR_PM(x)       (x)     

/* Bit definitions and macros for PCNTR */
#define MCF_PIT_PCNTR_PC(x)     (x)     

/********************************************************************/

#endif /* __MCF5445X_PIT_H__ */