R01UH0822EJ0100 Rev.1.00
Page 213 of 1041
Jul 31, 2019
RX13T Group
14. Interrupt Controller (ICUb)
14.2.13
NMI Pin Interrupt Control Register (NMICR)
Change the setting of the NMICR register before the NMI pin interrupt is enabled (before setting the NMIER.NMIEN bit
to 1).
This bit specifies the detection edge of the NMI pin interrupt.
14.2.14
NMI Pin Digital Filter Enable Register (NMIFLTE)
NFLTEN Bit (NMI Digital Filter Enable)
This bit enables the digital filter used for the NMI pin interrupt.
The digital filter is enabled when the NFLTEN bit is 1, and disabled when the NFLTEN bit is 0.
The NMI pin level is sampled at the sampling clock cycle specified with the NMIFLTC.NFCLKSEL[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 14.4.7, Digital Filter
.
Address(es): ICU.NMICR 0008 7583h
b7
b6
b5
b4
b3
b2
b1
b0
—
—
—
—
NMIMD
—
—
—
Value after reset:
0
0
0
0
0
0
0
0
Bit
Symbol
Bit Name
Description
R/W
b2 to b0
—
Reserved
These bits are read as 0. The write value should be 0.
R/W
b3
NMI Detection Set
0: Falling edge
1: Rising edge
R/W
b7 to b4
—
Reserved
These bits are read as 0. The write value should be 0.
R/W
Address(es): ICU.NMIFLTE 0008 7590h
b7
b6
b5
b4
b3
b2
b1
b0
—
—
—
—
—
—
—
NFLTE
N
Value after reset:
0
0
0
0
0
0
0
0
Bit
Symbol
Bit Name
Description
R/W
b0
NMI Digital Filter Enable
0: Digital filter is disabled
1: Digital filter is enabled
R/W
b7 to b1
—
Reserved
These bits are read as 0. The write value should be 0.
R/W