Samsung S5PC100 User Manual page 612

S5PC100 USER'S MANUAL (REV1.0)
7.4
1 OVERVIEW
The Real Time Clock (RTC) unit can be operated by the backup battery while the system power is off. The data
include the time by Second, Minute, Hour, Date, Day, Month, and Year. The RTC unit works with an external
32.768 kHz crystal and performs the alarm function.
2 FEATURES
•
BCD Number: Second, Minute, Hour, Date, Day, Month, and Year.
•
Leap Year Generator
•
Alarm Function: Alarm-Interrupt or Wake-up from Power-off mode
•
Tick Counter Function: Tick-Interrupt or Wake-up from Power-off mode.
•
Year 2000 problem is removed.
•
Independent Power Pin (RTCVDD)
•
Supports millisecond tick time interrupt for RTOS kernel time tick.
REAL TIME CLOCK (RTC)
REAL TIME CLOCK
7.4-1