文档介绍：MSP430寄存器中文注释---P1/2口(带中断功能)/*************************************************************DIGITALI/OPort1/2寄存器定义有中断功能************************************************************/#defineP1IN_              0x0020 /*P1输入寄存器*/constsfrbP1IN          =P1IN_;#defineP1OUT_             0x0021 /*P1输出寄存器*/sfrb   P1OUT            =P1OUT_;#defineP1DIR_             0x0022 /*P1方向选择寄存器*/sfrb   P1DIR            =P1DIR_;#defineP1IFG_             0x0023 /*P1中断标志寄存器*/sfrb   P1IFG            =P1IFG_;#defineP1IES_             0x0024 /*P1中断边沿选择寄存器*/sfrb   P1IES            =P1IES_;#defineP1IE_              0x0025 /*P1中断使能寄存器*/sfrb   P1IE             =P1IE_;#defineP1SEL_             0x0026 /*P1功能选择寄存器*/sfrb   P1SEL            =P1SEL_;#defineP2IN_              0x0028 /*P2输入寄存器*/constsfrbP2IN          =P2IN_;#defineP2OUT_             0x0029 /*P2输出寄存器 */sfrb   P2OUT            =P2OUT_;#defineP2DIR_             0x002A /*P2方向选择寄存器 */sfrb   P2DIR            =P2DIR_;#defineP2IFG_             0x002B /*P2中断标志寄存器*/sfrb   P2IFG            =P2IFG_;#defineP2IES_             0x002C /*P2中断边沿选择寄存器*/sfrb   P2IES            =P2IES_;#defineP2IE_              0x002D /*P2中断使能寄存器*/sfrb   P2IE             =P2IE_;#defineP2SEL_             0x002E /*P2功能选择寄存器*/sfrb   P2SEL            =P2SEL_;MSP430寄存器中文注释---P3/4口 (无中断功能)/*************************************************************DIGITALI/OPort3/4寄存器定义无中断功能************************************************************/#defineP3IN_              0x0018 /*P3输入寄存器*/constsfrbP3IN          =P3IN_;#defineP3OUT_             0x0019 /*P3输出寄存器*/sfrb   P3OUT            =P3OUT_;#defineP3DIR_             0x001A /*P3方向选择寄存器*/sfrb   P3DIR            =P3DIR_;#defineP3SEL_             0x001B /*P3功能选择寄存器*/sfrb   P3SEL            =P3SEL_;#defineP4IN_              0x001C /*P4输入寄存器*/constsfrbP4IN          =P4IN_;#defineP4OUT_             0x001D /*P4输出寄存器*/sfrb   P4OUT            =P4OUT_;#defineP4DIR_             0x001E /*P4方向选择寄存器*/sfrb   P4DIR            =P4DIR_;#defineP4SEL_