MC68HC908LK24 MOTOROLA [Motorola, Inc], MC68HC908LK24 Datasheet - Page 238

• Manufacturer Part Number: MC68HC908LK24
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

Real Time Clock (RTC)
Data Sheet
238
DAYF — Day Flag
HRF — Hour Flag
MINF — Minute Flag
SECF — Second Flag
Freescale Semiconductor, Inc.
This clearable, read-only bit is set on every increment of the day
counter. When the DAYIE bit in RTCCR1 is set, DAYF generates a
CPU interrupt request. In normal operation, clear the DAYF bit by
reading RTCSR with DAYF set and then reading the day register
(DAYR). Reset clears DAYF.
This clearable, read-only bit is set on every increment of the hour
counter. When the HRIE bit in RTCCR1 is set, HRF generates a CPU
interrupt request. In normal operation, clear the HRF bit by reading
RTCSR with HRF set and then reading the hour register (HRR). Reset
clears HRF.
This clearable, read-only bit is set on every increment of the minute
counter. When the MINIE bit in RTCCR1 is set, MINF generates a
CPU interrupt request. In normal operation, clear the MINF bit by
reading RTCSR with MINF set and then reading the minute register
(MINR). Reset clears MINF.
This clearable, read-only bit is set on every increment of the second
counter. When the SECIE bit in RTCCR1 is set, SECF generates a
CPU interrupt request. In normal operation, clear the SECF bit by
reading RTCSR with SECF set and then reading the second register
(SECR). Reset clears SECF.
For More Information On This Product,
1 = Day counter incremented
0 = No day counter incremented
1 = Hour counter incremented
0 = No hour counter incremented
1 = Minute counter incremented
0 = No minute counter incremented
1 = Second counter incremented
0 = No second counter incremented
Go to: www.freescale.com
Real Time Clock (RTC)
MC68HC908LJ24/LK24 — Rev. 2
MOTOROLA