Datasheet

Section 3 Exception Handling
Rev. 1.50 Sep. 18, 2007 Page 52 of 584
REJ09B0240-0150
Bit Bit Name
Initial
Value R/W Description
6 IRRTA  R/W RTC Interrupt Request Flag
[Setting condition]
When the RTC counter value overflows
[Clearing condition]
When writing 0
5, 4  All 1  Reserved
These bits are always read as 1.
3 IRRI3 0 R/W IRQ3 Interrupt Request Flag
[Setting condition]
When the IRQ3 pin is specified as an interrupt input and
the specified edge is detected.
[Clearing condition]
When writing 0
2 IRRI2 0 R/W IRQ2 Interrupt Request Flag
[Setting condition]
When the IRQ2 pin is specified as an interrupt input and
the specified edge is detected.
[Clearing condition]
When writing 0
1 IRRI1 0 R/W IRQ1 Interrupt Request Flag
[Setting condition]
When the IRQ1 pin is specified as an interrupt input and
the specified edge is detected.
[Clearing condition]
When writing 0
0 IRRl0 0 R/W IRQ0 Interrupt Request Flag
[Setting condition]
When the IRQ0 pin is specified as an interrupt input and
the specified edge is detected.
[Clearing condition]
When writing 0