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Figure 7-29. Timing of One-Shot Pulse Output Operation with External Trigger (with rising edge specified)
Sets TMCn to 08H.
(TMn count starts)
Count clock
TMn count value
0000H
CRn1 set value
N
CRn0 set value
M
TIn0 pin input
INTTMn1
INTTMn0
TOn0 pin output
Caution The 16-bit timer register starts operating as soon as a value other than 0, 0 (operation stop
mode) has been set to TMCn2 and TMCn3.
Remark n = 0, 1
7.2.7 Cautions
(1) Error on starting timer
An error of up to 1 clock occurs before the coincidence signal is generated after the timer has been started. This
is because the 16-bit timer register n (TMn) is started asynchronously in respect to the count pulse.
TMn count value
Remark
n = 0, 1
CHAPTER 7
TIMER/COUNTER FUNCTION
0001H
0000H
N
M
Figure 7-30. Start Timing of 16-Bit Timer Register n
Count pulse
0000H
Timer starts
M − 2
N
N + 1
N + 2
N
M
0001H
0002H
0003H
0004H
M − 1
M
M + 1
M + 2
N
M
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