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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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SWCS049F Fiches technique(PDF) 59 Page - Texas Instruments |
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SWCS049F Fiches technique(HTML) 59 Page - Texas Instruments |
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59 / 144 page  Biasing and Amplitude Control 32 kHz to Digital Block VRTC OSC32KOUT OSC32KIN SWCS049-014 REFGND C OSCIN C OSCOUT Q Copyright © 2016, Texas Instruments Incorporated 59 TPS65911 www.ti.com SWCS049S – JUNE 2010 – REVISED AUGUST 2018 Submit Documentation Feedback Product Folder Links: TPS65911 Detailed Description Copyright © 2010–2018, Texas Instruments Incorporated Figure 6-4. Crystal Oscillator 32-kHz Clock 6.9 Real Time Clock (RTC) The RTC, which is driven by the 32-kHz clock, provides the alarm and timekeeping functions. The RTC is kept supplied when the device is in the OFF state or the BACKUP state. The primary functions of the RTC block are: • Time information (seconds/minutes/hours) directly in binary-coded decimal (BCD) format • Calendar information (Day/Month/Year/Day of the week) directly in BCD code up to year 2099 • Programmable interrupts generation: The RTC can generate two interrupts: a timer interrupt RTC_PERIOD_IT periodically (1s/1m/1h/1d period) and an alarm interrupt RTC_ALARM_IT at a precise time of the day (alarm function). These interrupts are enabled using IT_ALARM and IT_TIMER control bits. Periodically interrupts can be masked during the SLEEP period to avoid host interruption and are automatically unmasked after SLEEP wakeup (using the IT_SLEEP_MASK_EN control bit). • Oscillator frequency calibration and time correction |
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