Datasheet

Section 10 16-Bit Timer Pulse Unit (TPU)

Rev.6.00 Mar. 18, 2009 Page 446 of 980

REJ09B0050-0600

Example of Synchronous Operation Setting Procedure: Figure 10.10 shows an example of the

synchronous operation setting procedure.

Synchronous operation

selection

Set TCNT

Synchronous presetting

[1]

[2]

Synchronous clearing

Select counter

clearing source

[3]

Start count [5]

Set synchronous

counter clearing

[4]

Start count [5]

Clearing

source generation

channel?

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 10.10 Example of Synchronous Operation Setting Procedure

Example of Synchronous Operation: Figure 10.11 shows an example of synchronous operation.

In this example, synchronous operation and PWM mode 1 have been designated for channels 0 to

2, TGRB_0 compare match has been set as the channel 0 counter clearing source, and

synchronous clearing has been set for the channel 1 and 2 counter clearing source.