Datasheet

Section 3 Exception Handling
Rev. 2.00 Sep. 23, 2005 Page 52 of 472
REJ09B0160-0200
Bit Bit Name
Initial
Value R/W Description
6 IRRTA 0 R/W RTC Interrupt Request Flag
[Setting condition]
When the RTC counter value overflows
[Clearing condition]
When IRRTA is cleared by 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 IRQ3 pin is designated for interrupt input and the
designated signal edge is detected.
[Clearing condition]
When IRRI3 is cleared by writing 0
2 IRRI2 0 R/W IRQ2 Interrupt Request Flag
[Setting condition]
When IRQ2 pin is designated for interrupt input and the
designated signal edge is detected.
[Clearing condition]
When IRRI2 is cleared by writing 0
1 IRRI1 0 R/W IRQ1 Interrupt Request Flag
[Setting condition]
When IRQ1 pin is designated for interrupt input and the
designated signal edge is detected.
[Clearing condition]
When IRRI1 is cleared by writing 0
0 IRRl0 0 R/W IRQ0 Interrupt Request Flag
[Setting condition]
When IRQ0 pin is designated for interrupt input and the
designated signal edge is detected.
[Clearing condition]
When IRRI0 is cleared by writing 0