Datasheet

Section 11 16-Bit Timer Pulse Unit (TPU)
Rev. 6.00 Mar. 18, 2010 Page 403 of 982
REJ09B0054-0600
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 2 (H8S/2227 Group) or 0 to 5 (groups other than H8S/2227) can all be designated
for synchronous operation.
Example of Synchronous Operation Setting Procedure: Figure 11.11 shows an example of the
synchronous operation setting procedure.