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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ST723246 датащи(PDF) 58 Page - STMicroelectronics |
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ST723246 датащи(HTML) 58 Page - STMicroelectronics |
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58 / 161 page  ST72324 58/161 MAIN CLOCK CONTROLLER WITH REAL TIME CLOCK (Cont’d) Bit 0 = OIF Oscillator interrupt flag This bit is set by hardware and cleared by software reading the MCCSR register. It indicates when set that the main oscillator has reached the selected elapsed time (TB1:0). 0: Timeout not reached 1: Timeout reached CAUTION: The BRES and BSET instructions must not be used on the MCCSR register to avoid unintentionally clearing the OIF bit. MCC BEEP CONTROL REGISTER (MCCBCR) Read /Write Reset Value: 0000 0000 (00h) Bit 7:2 = Reserved, must be kept cleared. Bit 1:0 = BC[1:0] Beep control These 2 bits select the PF1 pin beep capability. The beep output signal is available in ACTIVE- HALT mode but has to be disabled to reduce the consumption. Table 14. Main Clock Controller Register Map and Reset Values 70 000000 BC1 BC0 BC1 BC0 Beep mode with fOSC2=8MHz 00 Off 0 1 ~2-KHz Output Beep signal ~50% duty cycle 1 0 ~1-KHz 1 1 ~500-Hz Address (Hex.) Register Label 76 54321 0 002Bh SICSR Reset Value 0 AVDIE 0 AVDF 0 LVDRF x0 CSSIE 0 CSSD 0 WDGRF x 002Ch MCCSR Reset Value MCO 0 CP1 0 CP0 0 SMS 0 TB1 0 TB0 0 OIE 0 OIF 0 002Dh MCCBCR Reset Value 00 0000 BC1 0 BC0 0 |
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