R5F61525 RENESAS [Renesas Technology Corp], R5F61525 Datasheet - Page 134

• Manufacturer Part Number: R5F61525
• Description: 32-Bit CISC Microcomputer H8SX Family H8SX/1500 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 5 Interrupt Controller
5.3.5
ISCRH and ISCRL select the source that generates an interrupt request on pins IRQ14 to IRQ0.
Upon changing the setting of ISCR, IRQnF (n = 14 to 0) in ISR is often set to 1 accidentally
through an internal operation. In this case, an interrupt exception handling is executed if an IRQn
interrupt request is enabled. In order to prevent such an accidental interrupt from occurring, the
setting of ISCR should be changed while the IRQn interrupt is disabled, and then the IRQnF in
ISR should be cleared to 0.
• ISCRH
• ISCRL
Rev. 3.00 Mar. 14, 2006 Page 96 of 804
REJ09B0104-0300
Bit
Bit Name
Initial Value
R/W
Bit
Bit Name
Initial Value
R/W
Bit
Bit Name
Initial Value
R/W
Bit
Bit Name
Initial Value
R/W
IRQ Sense Control Registers H and L (ISCRH and ISCRL)
IRQ11SR
IRQ7SR
IRQ3SR
R/W
R/W
R/W
R/W
15
15
—
0
7
0
0
7
0
IRQ11SF
IRQ7SF
IRQ3SF
R/W
R/W
R/W
R/W
14
14
—
0
6
0
0
6
0
IRQ14SR
IRQ10SR
IRQ6SR
IRQ2SR
R/W
R/W
R/W
R/W
13
13
0
5
0
0
5
0
IRQ14SF
IRQ10SF
IRQ6SF
IRQ2SF
R/W
R/W
R/W
R/W
12
12
0
4
0
0
4
0
IRQ13SR
IRQ9SR
IRQ5SR
IRQ1SR
R/W
R/W
R/W
R/W
11
11
0
3
0
0
3
0
IRQ13SF
IRQ9SF
IRQ5SF
IRQ1SF
R/W
R/W
R/W
R/W
10
10
0
2
0
0
2
0
IRQ12SR
IRQ8SR
IRQ4SR
IRQ0SR
R/W
R/W
R/W
R/W
9
0
1
0
9
0
1
0
IRQ12SF
IRQ8SF
IRQ4SF
IRQ0SF
R/W
R/W
R/W
R/W
8
0
0
0
8
0
0
0