R01UH0822EJ0100 Rev.1.00
Page 377 of 1041
Jul 31, 2019
RX13T Group
19. Multi-Function Timer Pulse Unit 3 (MTU3c)
NFCS[1:0] Bits (Noise Filter Clock Select)
These bits set the sampling interval for the noise filters. After setting the NFCS[1:0] bits, wait for two cycles of the
selected sampling interval to set the input capture function.
19.2.33
Noise Filter Control Register 5 (NFCR5)
NFUEN Bit (Noise Filter U Enable)
This bit disables or enables the noise filter for input from the MTIC5U pin. Since unexpected edges may be internally
generated when the value of this bit is changed, select the output compare function for the relevant pin in the timer I/O
control register.
NFVEN Bit (Noise Filter V Enable)
This bit disables or enables the noise filter for input from the MTIC5V pin. Since unexpected edges may be internally
generated when the value of this bit is changed, select the output compare function for the relevant pin in the timer I/O
control register.
NFWEN Bit (Noise Filter W Enable)
This bit disables or enables the noise filter for input from the MTIC5W pin. Since unexpected edges may be internally
generated when the value of this bit is changed, select the output compare function for the relevant pin in the timer I/O
control register.
NFCS[1:0] Bits (Noise Filter Clock Select)
These bits set the sampling interval for the noise filters. When setting the NFCS[1:0] bits, wait for two cycles of the
selected sampling interval before setting the input-capture function.
Address(es): MTU5.NFCR5 0009 5295h
b7
b6
b5
b4
b3
b2
b1
b0
—
—
NFCS[1:0]
—
NFWE
N
NFVEN NFUEN
Value after reset:
0
0
0
0
0
0
0
0
Bit
Symbol
Bit Name
Description
R/W
b0
Noise Filter U Enable
0: The noise filter for the MTIC5U pin is disabled.
1: The noise filter for the MTIC5U pin is enabled.
R/W
b1
Noise Filter V Enable
0: The noise filter for the MTIC5V pin is disabled.
1: The noise filter for the MTIC5V pin is enabled.
R/W
b2
Noise Filter W Enable
0: The noise filter for the MTIC5W pin is disabled.
1: The noise filter for the MTIC5W pin is enabled.
R/W
b3
—
Reserved
This bit is read as 0. The write value should be 0.
R/W
b5, b4
Noise Filter Clock Select
b5 b4
0 0: PCLKB/1
0 1: PCLKB/8
1 0: PCLKB/32
1 1: Clock source for counting
R/W
b7, b6
—
Reserved
These bits are read as 0. The write value should be 0.
R/W