HD6433832S Datasheet, PDF (525/560 Pages) Renesas Technology Corp – single-chip microcomputers

IRR1—Interrupt request register 1
Bit
7
6
5
IRRTA IRRS1 —
Initial value
0
0
1
Read/Write
R/W* R/W*
—
H'F6
System control
4
IRRI4
0
R/W *
3
IRRI3
0
R/W *
2
IRRI2
0
R/W *
1
IRRI1
0
R/W *
0
IRRI0
0
R/W *
IRQ ₄ to IRQ₀ interrupt request flag
0 [Clearing condition]
When IRRIn = 1, it is cleared by writing 0
1 [Setting condition]
When pin IRQ_n is set to interrupt input and the designated signal edge is
detected
SCI1 interrupt request flag
0 [Clearing condition]
When IRRS1 = 1, it is cleared by writing 0
1 [Setting condition]
When an SCI1 transfer is completed
(n = 4 to 0)
Timer A interrupt request flag
0 [Clearing condition]
When IRRTA = 1, it is cleared by writing 0
1 [Setting condition]
When the timer A counter overflows from H'FF to H'00
Note: * Only a write of 0 for flag clearing is possible.
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