Datasheet

Section 11 16-Bit Timer Pulse Unit (TPU)
R01UH0310EJ0500 Rev. 5.00 Page 757 of 1384
Sep 25, 2012
H8S/2426, H8S/2426R, H8S/2424 Group
(1) Example of Synchronous Operation Setting Procedure
Figure 11.11 shows an example of the synchronous operation setting procedure.
Synchronous operation
selection
Set TCNT
Synchronous presetting
<Synchronous presetting>
[1]
[2]
Synchronous clearing
Select counter
clearing source
<Counter clearing>
[3]
Start count [5]
Set synchronous
counter clearing
<Synchronous clearing>
[4]
Start count [5]
Clearing
source generation
channel?
No
Yes
[1] Set to 1 the SYNC bits in TSYR corresponding to the channels to be designated for synchronous operation.
[2] When the TCNT counter of any of the channels designated for synchronous operation is written to, the
same value is simultaneously written to the other TCNT counters.
[3] Use bits CCLR2 to CCLR0 in TCR to specify TCNT clearing by input capture/output compare, etc.
[4] Use bits CCLR2 to CCLR0 in TCR to designate synchronous clearing for the counter clearing source.
[5] Set to 1 the CST bits in TSTR for the relevant channels, to start the count operation.
Set synchronous
operation
Figure 11.11 Example of Synchronous Operation Setting Procedure