mc68hc908lj24 Freescale Semiconductor, Inc, mc68hc908lj24 Datasheet - Page 218

• Manufacturer Part Number: mc68hc908lj24
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Real Time Clock (RTC)
12.2 Introduction
12.3 Features
Data Sheet
218
NOTE:
12.10.10 Day Register (DAYR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242
12.10.11 Month Register (MTHR) . . . . . . . . . . . . . . . . . . . . . . . . . . .243
12.10.12 Year Register (YRR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
12.10.13 Day-Of-Week Register (DOWR) . . . . . . . . . . . . . . . . . . . . 244
12.10.14 Chronograph Data Register (CHRR) . . . . . . . . . . . . . . . . . 244
This section describes the real time clock (RTC) module. The RTC
provides real time clock and calendar functions with automatic leap year
adjustments. Other functions include alarm interrupt, periodic interrupts,
and a chronograph timer.
This module is designed for a 32.768-kHz oscillator.
Features of the RTC module include:
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32.768kHz clock input with frequency compensation
Counter registers for:
– Second
– Minute
– Hour
– Day
– Day-of-week
– Month
– Year
Day counter with automatic month and leap year adjustment
1/100 seconds chronograph counter
Seven periodic interrupts
Alarm interrupt
Real Time Clock (RTC)
MC68HC908LJ24/LK24 — Rev. 2.1
Freescale Semiconductor