HD64F36049 datasheet(187/562 Pages) RENESAS

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Section 10 Realtime Clock (RTC)

Rev. 3.00 Mar. 15, 2006 Page 155 of 526

REJ09B0060-0300

10.3.6

RTC Control Register 2 (RTCCR2)

RTCCR2 controls RTC periodic interrupts of weeks, days, hours, minutes, and seconds. Enabling

interrupts of weeks, days, hours, minutes, and seconds sets the IRRTA flag to 1 in the interrupt

flag register 1 (IRR1) when an interrupt occurs. It also controls an overflow interrupt of a free

running counter when RTC operates as a free running counter.

Bit

Bit Name

Initial

Value

R/W

Description

—

Reserved

These bits are always read as 0.

FOIE

—

R/W

Free Running Counter Overflow Interrupt Enable

0: Disables an overflow interrupt

1: Enables an overflow interrupt

WKIE

—

R/W

Week Periodic Interrupt Enable

0: Disables a week periodic interrupt

1: Enables a week periodic interrupt

DYIE

—

R/W

Day Periodic Interrupt Enable

0: Disables a day periodic interrupt

1: Enables a day periodic interrupt

HRIE

—

R/W

Hour Periodic Interrupt Enable

0: Disables an hour periodic interrupt

1: Enables an hour periodic interrupt

MNIE

—

R/W

Minute Periodic Interrupt Enable

0: Disables a minute periodic interrupt

1: Enables a minute periodic interrupt

SEIE

—

R/W

Second Periodic Interrupt Enable

0: Disables a second periodic interrupt

1: Enables a second periodic interrupt

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