显示缓冲单元在70H—75H，70H—71H显示秒，72H—73H显示分，74H—75H显示时 *

时间计数单元在70H—71H（秒）、76H—77H（分）、78H—79H（时）， *

7AH单元放熄灭符（#0AH）计数单元采用BCD码计数定时器T0设置为50MS溢出中断为秒计数 *

定时器T1为调整时闪烁用 P3.2为调整按钮，P1口为字符输出口，采用共阳显示管。

-　Display buffer unit in the 70H-75H, 70H-71H show the seconds, 72H-73H show the hours, 74H-75H is displayed*　time counting unit in the 70H-71H (seconds), 76H-77H (hours), 78H-79H ( hours),*　7AH units put out Fu (# 0AH) using BCD code counting unit count is set to T0 timer overflow interrupt for 50MS seconds count*　timer T1 used for the adjustment flashes　P3.2 button to adjust, P1 output port for the characters, using a total of Yang shows.