/************************************************************
*           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   " */