Datasheet

Section 14 Timer Z
Rev. 3.00 Mar. 15, 2006 Page 285 of 526
REJ09B0060-0300
6. Contention between Count Clearing and Increment Operations by Input Capture: If an input
capture and increment signals are simultaneously generated, count clearing by the input
capture operation has priority without an increment operation. The TCNT contents before
clearing counter are transferred to GR. Figure 14.57 shows the timing in this case.
TCNT
Input capture
signal
Counter clear
signal
TCNT input clock
Clearing has priority.
N
H'0000
GR
N
φ
Figure 14.57 Contention between Count Clearing and Increment Operations
by Input Capture