
R8C/14 Group, R8C/15 Group 13. Timers
Rev.2.10 Jan 19, 2006 Page 122 of 253
REJ09B0164-0210
Figure 13.30 Operating Example in Input Capture Mode
FFFFh
0000h
Counter Contents (hex)
Count Starts
Overflow
Period
TCC00 Bit in
TCC0 Register
“1”
“0”
Measurement Pulse
(TCIN Pin Input)
Transmit Timing
from Timer C
Counter to TM0
Register
IR Bit in INT3IC
Register
The above applies to the following conditions.
TCC0 register TCC04 to TCC03 bits=01b (capture input polarity is set for falling edge),
TCC07=0 (INT3/TCIN input as capture input trigger)
←Measurement value 1
←Measurement value 2
←
Set to "1" by program
Transmit
(Measurement
value 1)
The delay caused by digital filter and
one count source cycle delay (max.)
Measurement
value 1
TM0 Register
Measurement value 2
Measurement
value 3
Indeterminate
Set to "0" when interrupt
request is acknowledged, or set
by program
IR Bit in TCIC
Register
Set to "0" by
program
Set to "0" when interrupt request is acknowledged, or set by program
Transmit
(Measurement
value 2)
Transmit
(Measurement
value 3)
Indeterminate
“1”
“0”
“1”
“0”
“1”
“0”
Measurement
value 3
“1”
“0”
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