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HD6417727BP160CV Datasheet, PDF (515/1098 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family/ SH7700 Series | |||
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Section 16 Realtime Clock (RTC)
Section 16 Realtime Clock (RTC)
16.1 Overview
This LSI has a realtime clock (RTC) with its own 32.768-kHz crystal oscillation circuit.
16.1.1 Features
The RTC has the following features:
⢠Clock and calendar functions (BCD display): Seconds, minutes, hours, date, day of the week,
month, and year
⢠1 to 64-Hz timer (binary display)
⢠Start/stop function
⢠30-second adjustment
⢠Alarm interrupt:
Frame comparisons of seconds, minutes, hours, date, day of the week, and month can be
selected for the alarm interrupt condition
⢠Periodic interrupts:
The interrupt cycle can be selected from 1/256 second, 1/64 second, 1/16 second, 1/4 second,
1/2 second, 1 second, or 2 seconds
⢠Carry interrupt: A carry interrupt indicates when a carry occurs during a counter read
⢠Automatic leap year correction
Rev.6.00 Mar. 27, 2009 Page 457 of 1036
REJ09B0254-0600
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