Datasheet

MSP430BT5190
SLAS703A –APRIL 2010–REVISED AUGUST 2013 www.ti.com
Real-Time Clock (RTC_A)
The RTC_A module can be used as a general-purpose 32-bit counter (counter mode) or as an integrated real-
time clock (RTC) (calendar mode). In counter mode, the RTC_A also includes two independent 8-bit timers that
can be cascaded to form a 16-bit timer/counter. Both timers can be read and written by software. Calendar mode
integrates an internal calendar which compensates for months with less than 31 days and includes leap year
correction. The RTC_A also supports flexible alarm functions and offset-calibration hardware.
Watchdog Timer (WDT_A)
The primary function of the WDT_A module is to perform a controlled system restart after a software problem
occurs. If the selected time interval expires, a system reset is generated. If the watchdog function is not needed
in an application, the module can be configured as an interval timer and can generate interrupts at selected time
intervals.
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