HD6473032F Datasheet, PDF (544/572 Pages) Hitachi Semiconductor – Hitachi Microcomputer

ISCR—IRQ Sense Control Register
H'F4 Interrupt controller
Bit
Initial value
Read/Write
7
6
5
4
3
2
1
0
—
—
— IRQ4SC IRQ3SC IRQ2SC IRQ1SC IRQ0SC
0
0
0
0
0
0
0
0
R/W
R/W R/W
R/W R/W
R/W R/W R/W
IRQ₄ to IRQ₀ sense control
0 Interrupts are requested when IRQ₄ to IRQ₀ inputs are low
1 Interrupts are requested by falling-edge input at IRQ₄ to IRQ₀
IER—IRQ Enable Register
H'F5 Interrupt controller
Bit
Initial value
Read/Write
7
—
0
R/(W)
6
—
0
R/(W)
5
—
0
R/(W)
4
IRQ4E
0
R/(W)
3
IRQ3E
0
R/(W)
2
IRQ2E
0
R/(W)
1
IRQ1E
0
R/(W)
0
IRQ0E
0
R/(W)
IRQ₄ to IRQ₀ enable
0 IRQ ₄ to IRQ₀ interrupts are disabled
1 IRQ ₄ to IRQ₀ interrupts are enabled
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