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SN8A1702AX Datasheet(PDF) 66 Page - SONiX Technology Company |
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SN8A1702AX Datasheet(HTML) 66 Page - SONiX Technology Company |
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66 / 145 page  SN8P1700 8-bit micro-controller build-in 12-bit ADC SONiX TECHNOLOGY CO., LTD Page 66 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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