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(3) Timer 3 noise elimination time selection register (NRC3)
The NRC3 register is used to set the clock source of timer 3 input pin noise elimination times.
This register can be read/written in 8-bit or 1-bit units.
Caution The noise elimination function starts operating by setting the TM3CE bit of the TMC30
register to 1 (enabling count operations).
7
6
NRC3
0
0
Bit position
Bit name
3, 2
NRC33,
NRC32
1, 0
NRC31,
NRC30
CHAPTER 14 PORT FUNCTIONS
5
4
3
0
0
NRC33
Selects the TO3/INTP31 pin noise elimination clock.
NRC33
NRC32
0
0
f
XXTM3
0
1
f
XXTM3
1
0
f
XXTM3
1
1
f
XXTM3
Remark
f
: Clock selected by PRM03 register
XXTM3
Selects the TI3/INTP30/TCLR3 pin noise elimination clock.
NRC31
NRC30
0
0
f
XXTM3
0
1
f
XXTM3
1
0
f
XXTM3
1
1
f
XXTM3
Remark
f
: Clock selected by PRM03 register
XXTM3
User's Manual U14492EJ5V0UD
2
1
0
NRC32
NRC31
NRC30
Function
Noise elimination clock
/256
/128
/64
/32
Noise elimination clock
/16
/8
/4
/2
Address
Initial value
FFFFF698H
00H
715
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