利用指令执行周期设定，以下为一段延时程序：       
定时数=(TIME1*4+2+1)*TIM2*2+4                                                                                                     
MOV           1
DJNZ           2
NOP           1
MOV    R5,#TIME2         ;周期1
LOOP1:    MOV    R6,#TIME1         ; 1
LOOP2:    NOP                      ; 1
     NOP                       ; 1
     DJNZ  R6,LOOP2            ; 2
          DJNZ    R5,LOOP1          ; 2