R01UH0823EJ0100 Rev.1.00
Page 278 of 1823
Jul 31, 2019
RX23W Group
15. Interrupt Controller (ICUb)
15.2.9
IRQ Pin Digital Filter Enable Register 0 (IRQFLTE0)
FLTENi Bit (IRQi Digital Filter Enable) (i = 0, 1, and 4 to 7)
This bit enables the digital filter used for the IRQi pin.
The digital filter is enabled when the FLTENi bit is 1, and disabled when the FLTENi bit is 0.
The IRQi pin level is sampled at the sampling clock cycle specified with the IRQFLTC0.FCLKSELi[1:0] bits. When the
sampled level matches three times, the output level from the digital filter changes.
For details of the digital filter, see
section 15.4.7, Digital Filter
.
Address(es): ICU.IRQFLTE0 0008 7510h
b7
b6
b5
b4
b3
b2
b1
b0
FLTEN
7
FLTEN
6
FLTEN
5
FLTEN
4
—
—
FLTEN
1
FLTEN
0
Value after reset:
0
0
0
0
0
0
0
0
Bit
Symbol
Bit Name
Description
R/W
b0
IRQ0 Digital Filter Enable
0: Digital filter is disabled
1: Digital filter is enabled
R/W
b1
IRQ1 Digital Filter Enable
R/W
b3, b2
—
Reserved
These bits are read as 0. The write value should be 0.
R/W
b4
IRQ4 Digital Filter Enable
0: Digital filter is disabled
1: Digital filter is enabled
R/W
b5
IRQ5 Digital Filter Enable
R/W
b6
IRQ6 Digital Filter Enable
R/W
b7
IRQ7 Digital Filter Enable
R/W