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Section 11 16-Bit Cycle Measurement Timer (TCM)
Initial
Bit
Bit Name
Value
3
ICPF
0
2
MINUDF
0
1
MCICTL
0
0
All 0
Note:
*
Only 0 can be written to clear the flag.
Rev. 1.00 May 09, 2008 Page 298 of 954
REJ09B0462-0100
R/W
Description
R/(W)* Input Capture Generation
Timer mode: The flag indicates that the value in TCMCNT
has been transferred to TCMICR on generation of an input
capture signal. This flag is set when the input capture signal
is generated, i.e. on detection of the edge selected by the
IEDGD bit on the TCMCYI input pin.
Cycle measurement mode: The flag indicates that the value
in TCMCNT has been transferred to TCMICR on detection
of the second edge (rising or falling as determined by the
IEDG bit in TCMCR) during the measurement period.
[Setting condition]
Generation of the input capture signal
[Clearing condition]
Reading ICPF when ICPF = 1 and then writing 0 to ICPF
R/(W)* Measurement Period Lower Limit Underflow
This flag indicates that the measured number of cycles of
the waveform for measurement in cycle measurement mode
has reached the lower limit set in TCMMINCM, causing an
underflow.
[Setting condition]
A smaller value for TCMICR than TCMMINCM
[Clearing condition]
Reading MINUDF when MINUDF = 1 and then writing 0 to
MINUDF
R/W
TCMMCI Input Polarity Inversion
0: TCMMCI input is inverted for use.
1: TCMMCI input is directly used.
Note: Change this bit when CST = 0 and TCMMDS = 0
R/W
Reserved
The initial value should not be changed.
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