MSP430看門狗定時器的寄存器定義

* 看門狗定時器的寄存器定義
************************************************************/

#define WDTCTL_ 0x0120
sfrw WDTCTL = WDTCTL_;
#define WDTIS0 0x0001 /*選擇WDTCNT的四個輸出端之一*/
#define WDTIS1 0x0002 /*選擇WDTCNT的四個輸出端之一*/
#define WDTSSEL 0x0004 /*選擇WDTCNT的時鐘源*/
#define WDTCNTCL 0x0008 /*清除WDTCNT端: 為1時 從0開始計數(shù)*/
#define WDTTMSEL 0x0010 /*選擇模式 0: 看門狗模式; 1: 定時器模式*/
#define WDTNMI 0x0020 /*選擇NMI/RST 引腳功能 0:為 RST; 1:為NMI*/
#define WDTNMIES 0x0040 /*WDTNMI=1時.選擇觸發(fā)延 0:為上升延 1:為下降延*/
#define WDTHOLD 0x0080 /*停止看門狗定時器工作 0:啟動;1:停止*/

#define WDTPW 0x5A00 /* 寫密碼:高八位*/

/* SMCLK= 1MHz定時器模式 */
#define WDT_MDLY_32 WDTPW+WDTTMSEL+WDTCNTCL /* TSMCLK*2POWER15=32ms 復(fù)位狀態(tài) */
#define WDT_MDLY_8 WDTPW+WDTTMSEL+WDTCNTCL+WDTIS0 /* TSMCLK*2POWER13=8.192ms " */
#define WDT_MDLY_0_5 WDTPW+WDTTMSEL+WDTCNTCL+WDTIS1 /* TSMCLK*2POWER9=0.512ms " */
#define WDT_MDLY_0_064 WDTPW+WDTTMSEL+WDTCNTCL+WDTIS1+WDTIS0 /* TSMCLK*2POWER6=0.512ms " */
/* ACLK=32.768KHz 定時器模式*/
#define WDT_ADLY_1000 WDTPW+WDTTMSEL+WDTCNTCL+WDTSSEL /* TACLK*2POWER15=1000ms " */
#define WDT_ADLY_250 WDTPW+WDTTMSEL+WDTCNTCL+WDTSSEL+WDTIS0 /* TACLK*2POWER13=250ms " */
#define WDT_ADLY_16 WDTPW+WDTTMSEL+WDTCNTCL+WDTSSEL+WDTIS1 /* TACLK*2POWER9=16ms " */
#define WDT_ADLY_1_9 WDTPW+WDTTMSEL+WDTCNTCL+WDTSSEL+WDTIS1+WDTIS0 /* TACLK*2POWER6=1.9ms " */
/* SMCLK=1MHz看門狗模式 */
#define WDT_MRST_32 WDTPW+WDTCNTCL /* TSMCLK*2POWER15=32ms 復(fù)位狀態(tài) */
#define WDT_MRST_8 WDTPW+WDTCNTCL+WDTIS0 /* TSMCLK*2POWER13=8.192ms " */
#define WDT_MRST_0_5 WDTPW+WDTCNTCL+WDTIS1 /* TSMCLK*2POWER9=0.512ms " */
#define WDT_MRST_0_064 WDTPW+WDTCNTCL+WDTIS1+WDTIS0 /* TSMCLK*2POWER6=0.512ms " */
/* ACLK=32KHz看門狗模式 */
#define WDT_ARST_1000 WDTPW+WDTCNTCL+WDTSSEL /* TACLK*2POWER15=1000ms " */
#define WDT_ARST_250 WDTPW+WDTCNTCL+WDTSSEL+WDTIS0 /* TACLK*2POWER13=250ms " */
#define WDT_ARST_16 WDTPW+WDTCNTCL+WDTSSEL+WDTIS1 /* TACLK*2POWER9=16ms " */
#define WDT_ARST_1_9 WDTPW+WDTCNTCL+WDTSSEL+WDTIS1+WDTIS0 /* TACLK*2POWER6=1.9ms " */