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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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C161PI Scheda tecnica(PDF) 26 Page - Infineon Technologies AG |
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C161PI Scheda tecnica(HTML) 26 Page - Infineon Technologies AG |
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26 / 82 page  &3, Data Sheet 24 1999-07 Real Time Clock The Real Time Clock (RTC) module of the C161PI consists of a chain of 3 divider blocks, a fixed 8:1 divider, the reloadable 16-bit timer T14, and the 32-bit RTC timer (accessible via registers RTCH and RTCL). The RTC module is directly clocked with the on-chip oscillator frequency divided by 32 via a separate clock driver ( I RTC = IOSC / 32) and is therefore independent from the selected clock generation mode of the C161PI. All timers count up. The RTC module can be used for different purposes: • System clock to determine the current time and date • Cyclic time based interrupt • 48-bit timer for long term measurements Figure 8 RTC Block Diagram Note: The registers associated with the RTC are not effected by a reset in order to maintain the correct system time even when intermediate resets are executed. RTCL RTCL T14 T14REL 8:1 f RTC Reload Interrupt Request |
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