Real-Time Clock RTC_B Introduction
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SLAU367P – October 2012 – Revised April 2020
Copyright © 2012–2020, Texas Instruments Incorporated
Real-Time Clock B (RTC_B)
28.1 Real-Time Clock RTC_B Introduction
The RTC_B module provides configurable clock counters.
RTC_B features include:
•
Real-time clock and calendar mode providing seconds, minutes, hours, day of week, day of month,
month, and year (including leap year correction)
Note that only the calendar mode is supported by RTC_B; the counter mode that is available in some
other RTC modules is not supported.
•
Interrupt capability
•
Selectable BCD or binary format
•
Programmable alarms
•
Calibration logic for time offset correction
•
Operation in LPM3.5
The RTC_B block diagram for devices supporting LPM3.5 is shown in
NOTE:
Real-time clock initialization
Most RTC_B module registers have no initial condition. These registers must be configured
by user software before use.