HD64F3039F18 Datasheet, PDF (676/710 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8 Family / H8/300H Series

Appendix B Internal I/O Register Field
ISCR—IRQ Sense Control Register
H'F4
Interrupt controller
Bit
Initial value
Read/Write
7
—
0
R/W
6
5
4
3
— IRQ5SC IRQ4SC —
0
0
0
0
R/W R/W R/W R/W
2
1
0
— IRQ1SC IRQ0SC
0
0
0
R/W R/W R/W
IRQ₅, IRQ₄, IRQ₁ and IRQ₀ sense control
0 Interrupts are requested when IRQ₅, IRQ₄, IRQ₁, and IRQ₀
inputs are low
1 Interrupts are requested by falling-edge input at IRQ₅, IRQ₄,
IRQ₁ and IRQ₀
IER—IRQ Enable Register
H'F5
Interrupt controller
Bit
7
6
5
4
3
2
1
0
—
— IRQ5E IRQ4E —
— IRQ1E IRQ0E
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W R/W R/W
R/W R/W R/W
IRQ₅, IRQ₄, IRQ₁, IRQ₀ enable
0 IRQ₅, IRQ₄, IRQ₁ and IRQ₀ interrupts are disabled
1 IRQ₅, IRQ₄, IRQ₁ and IRQ₀ interrupts are enabled
Rev.3.00 Mar. 26, 2007 Page 652 of 682
REJ09B0353-0300