JAJSDV8E August 2011 – January 2017 OMAP-L132
PRODUCTION DATA.
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The RTC provides a time reference to an application running on the device. The current date and time is tracked in a set of counter registers that update once per second. The time can be represented in 12-hour or 24-hour mode. The calendar and time registers are buffered during reads and writes so that updates do not interfere with the accuracy of the time and date.
Alarms are available to interrupt the CPU at a particular time, or at periodic time intervals, such as once per minute or once per day. In addition, the RTC can interrupt the CPU every time the calendar and time registers are updated, or at programmable periodic intervals.
The real-time clock (RTC) provides the following features:
Figure 6-59 shows a block diagram of the RTC.