Renesas SH7641 - Manual (Page 619)

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
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