HD6413003RF Datasheet, PDF (104/715 Pages) Renesas Technology Corp – Microcontroller (MCU)

5.2.5 IRQ Sense Control Register (ISCR)
ISCR is an 8-bit readable/writable register that selects level sensing or falling-edge sensing of the
inputs at pins IRQ₇ to IRQ₀.
Bit
Initial value
Read/Write
7
6
5
4
3
2
1
0
IRQ7SC IRQ6SC IRQ5SC 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
IRQ ₇ to IRQ₀ sense control
These bits select level sensing or falling-edge sensing for
IRQ ₇ to IRQ₀ interrupts
ISCR is initialized to H'00 by a reset and in hardware standby mode.
Bits 7 to 0—IRQ₇ to IRQ₀ Sense Control (IRQ7SC to IRQ0SC): These bits selects whether
interrupts IRQ₇ to IRQ₀ are requested by level sensing of pins IRQ₇ to IRQ₀, or by falling-edge
sensing.
Bits 7 to 0
IRQ7SC to IRQ0SC Description
0
Interrupts are requested when IRQ₇ to IRQ₀ inputs are low (Initial value)
1
Interrupts are requested by falling-edge input at IRQ₇ to IRQ₀
86