SH7125_08 Datasheet, PDF (117/774 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family

Section 6 Interrupt Controller (INTC)
Initial
Bit
Bit Name Value
R/W Description
3
IRQ3F
0
R/W Indicates the status of an IRQ3 interrupt request.
• When level detection mode is selected
0: An IRQ3 interrupt has not been detected
[Clearing condition]
Driving pin IRQ3 high
1: An IRQ3 interrupt has been detected
[Setting condition]
Driving pin IRQ3 low
• When edge detection mode is selected
0: An IRQ3 interrupt has not been detected
[Clearing conditions]
 Writing 0 after reading IRQ3F = 1
 Accepting an IRQ3 interrupt
1: An IRQ3 interrupt request has been detected
[Setting condition]
Detecting the specified edge of pin IRQ3
Rev. 4.00 Jul. 25, 2008 Page 97 of 750
REJ09B0243-0400