Renesas SH7641 Manuel D’Utilisation

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