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TPS659112A2ZRC 数据表(PDF) 56 Page - Texas Instruments |
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TPS659112A2ZRC 数据表(HTML) 56 Page - Texas Instruments |
56 / 119 page Hours 32-kHz Clock Input INT_ALARM INT_TIMER Seconds Interrupt Minutes Week Days Days Months Years Control Alarm Frequency Compensation 32-kHz Counter SWCS049-015 Copyright © 2016, Texas Instruments Incorporated 56 TPS659110, TPS659112, TPS659113 TPS659114, TPS659118, TPS6591133 SWCS049Q – JUNE 2010 – REVISED MARCH 2016 www.ti.com Submit Documentation Feedback Product Folder Links: TPS659110 TPS659112 TPS659113 TPS659114 TPS659118 TPS6591133 Detailed Description Copyright © 2010–2016, Texas Instruments Incorporated Figure 6-5. RTC Digital Section Block Diagram 6.7.1 Time Calendar Registers All the time and calendar information is available in these dedicated registers, called TC registers. Values of the TC registers are written in BCD format. 1. Years data ranges from 00 to 99 – Leap year = Year divisible by four (2000, 2004, 2008, 2012...) – Common year = other years 2. Months data ranges from 01 to 12 3. Days value ranges from: – 1 to 31 when months are 1, 3, 5, 7, 8, 10, 12 – 1 to 30 when months are 4, 6, 9, 11 – 1 to 29 when month is 2 and year is a leap year – 1 to 28 when month is 2 and year is a common year 4. Weeks value ranges from 0 to 6 5. Hours value ranges from 00 to 23 in 24-hour mode and ranges from 1 to 12 in AM/PM mode 6. Minutes value ranges from 0 to 59 7. Seconds value ranges from 0 to 59 To modify the current time, software writes the new time into TC registers to fix the time/calendar information. The processor can write into the TC registers without stopping the RTC. In addition, software can stop the RTC by clearing the STOP_RTC bit of the control register and check the RUN bit of the status to be sure that the RTC is frozen, then update the TC values, and then restart the RTC by setting STOP_RTC bit. Example: Time is 10H54M36S PM (PM_AM mode set), 2008 September 5, previous register values are: Table 6-4. RTC Registers Example Register Value SECONDS_REG 0x36 MINUTES_REG 0x54 |
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