How do I connect the Real Time Clock (RTC) pins on Blackfin?

Document created by analog-archivist Employee on Feb 23, 2016
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How do I connect the Real Time Clock (RTC) pins on Blackfin? What if I don't
want to use the RTC at all?

 

For lowest power consumption, it is best to follow the advice of EE-281:
Hardware Design Checklist for the Blackfin® Processors:

Real-Time Clock (RTC)

Power
Does your design require a battery for continuous time information? If not,
connect the
RTC power to VDD_IO.

Crystal
Ensure that an additional shunt resistor (1 MΩ to 10 MΩ) is present in the RTC
crystal circuit. If the RTC is not used, pull the RTXI pin low.

Check this site for the latest version EE-281:
http://www.analog.com/processors/blackfin/technicalLibrary/applicationNotes/inde
x.html

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