Datasheet

Section 11 16-Bit Timer Pulse Unit (TPU)
Page 756 of 1384 R01UH0310EJ0500 Rev. 5.00
Sep 25, 2012
H8S/2426, H8S/2426R, H8S/2424 Group
(b) Example of input capture operation
Figure 11.10 shows an example of input capture operation.
In this example both rising and falling edges have been selected as the TIOCA pin input
capture input edge, falling edge has been selected as the TIOCB pin input capture input edge,
and counter clearing by TGRB input capture has been designated for TCNT.
TCNT value
H'0180
H'0000
TIOCA
TGRA
Time
H'0010
H'0005
Counter cleared by TIOCB
input (falling edge)
H'0160
H'0005 H'0160 H'0010
TGRB
H'0180
TIOCB
Figure 11.10 Example of Input Capture Operation
11.4.2 Synchronous Operation
In synchronous operation, the values in multiple TCNT counters can be rewritten simultaneously
(synchronous presetting). Also, multiple of TCNT counters can be cleared simultaneously
(synchronous clearing) by making the appropriate setting in TCR.
Synchronous operation enables TGR to be incremented with respect to a single time base.
Channels 0 to 5 and 6 to 11 can all be designated for synchronous operation.