Hi, all

I have a problem to enter 8032 power down mode. when following code is called, 8032 works fine and enters power down mode, I can see oscillator stops working.

stop:
MOV PCON,#2 ;Power down
LJMP stop

However, when I insert another line CLR P1.0(connect to Xilinx), see following code, 8032 refuse to enter into power down mode, I can see oscillator keeps working, I don't know why ?

stop:
CLR p1.0
MOV PCON,#2 ;Power down
LJMP stop

Can anyone give me some suggestion/help ? thanks


Daniel