Renesas HD6417641 - Figure 18.11 Example of Synchronous Operation Setting Procedure

Section 18 Multi-Function Timer Pulse Unit (MTU)
Rev. 4.00 Sep. 14, 2005 Page 569 of 982
REJ09B0023-0400
Example of Synchronous Operation Setting Procedure: Figure 18.11 shows an example of the
synchronous operation setting procedure.
No
Yes
Set synchronous
operation
<Synchronous presetting> <Counter clearing> <Synchronous clearing>
Clearing
source generation
channel?
Select counter
clearing source
Start count
Set synchronous
counter clearing
Start count
[1]
[3]
[5]
[4]
[5]
[2]
Synchronous operation
selection
[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 TCNT
Synchronous presetting Synchronous clearing
Figure 18.11 Example of Synchronous Operation Setting Procedure