IAR 环境下的430F169头文件是这样的  有些看不太明白
代码中的有彩 {MOD}部分的不明白

#ifndef __msp430x16x
#define __msp430x16x

#ifdef  __IAR_SYSTEMS_ICC__
#ifndef _SYSTEM_BUILD
#pragma system_include
#endif
#endif

#if (((__tiD__ >> 8) & 0x7F) != 0x2b)     /* 0x2b = 43 dec */
#error msp430f169.h file for use with ICC430/A430 only
#endif


#ifdef __IAR_SYSTEMS_ICC__
#include "in430.h"
#pragma language=extended

#define DEFC(name, address) __no_init volatile unsigned char name @ address;
#define DEFW(name, address) __no_init volatile unsigned short name @ address;
#define DEFXC  volatile unsigned char
#define DEFXW  volatile unsigned short

#endif  /* __IAR_SYSTEMS_ICC__  */


#ifdef __IAR_SYSTEMS_ASM__
#define DEFC(name, address) sfrb name = address;
#define DEFW(name, address) sfrw name = address;

#endif /* __IAR_SYSTEMS_ASM__*/

#ifdef __cplusplus
#define READ_ONLY
#else
#define READ_ONLY const
#endif