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SN8P1602AS 데이터시트(PDF) 49 Page - SONiX Technology Company |
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SN8P1602AS 데이터시트(HTML) 49 Page - SONiX Technology Company |
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49 / 94 page ![]() SN8P1600 8-bit micro-controller SONiX TECHNOLOGY CO., LTD Page 49 Revision 1.94 SYSTEM MODE SWITCHING Switch normal/slow mode to power down (sleep) mode. CPUM0 = 1 B0BSET FCPUM0 ; set the system into power down mode. During the sleep, only the wakeup pin and reset can wakeup the system back to the normal mode. Switch normal mode to slow mode. B0BSET FCLKMD ;To set CLKMD = 1, Change the system into slow mode B0BSET FSTPHX ;To stop external high-speed oscillator for power saving. Switch slow mode to normal mode If external high clock stop and program want to switch back normal mode. It is necessary to delay at least 10mS for external clock stable. B0BCLR FSTPHX ; Turn on the external high-speed oscillator. B0MOV Z, #27 ; If VDD = 5V, internal RC=32KHz (typical) will delay @@: DECMS Z ; 0.125ms X 81 = 10.125ms for external clock stable JMP @B ; B0BCLR FCLKMD ; Change the system back to the normal mode |
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