Datasheet

Section 9 16-Bit Timer Pulse Unit (TPU)
Rev.7.00 Dec. 24, 2008 Page 304 of 698
REJ09B0074-0700
2. Examples of waveform output operation
Figure 9.10 shows an example of 0 output/1 output. In this example TCNT has been designated
as a free-running counter, and settings have been made so that 1 is output by compare match A,
and 0 is output by compare match B. When the set level and the pin level coincide, the pin
level does not change.
TCNT value
H'FFFF
H'0000
TIOCA
TIOCB
Tim
e
TGRA
TGRB
No change No change
No change No change
1 output
0 output
Figure 9.10 Example of 0 Output/1 Output Operation
Figure 9.11 shows an example of toggle output.
In this example TCNT has been designated as a periodic counter (with counter clearing
performed by compare match B), and settings have been made so that output is toggled by both
compare match A and compare match B.
TCNT value
H'FFFF
H'0000
TIOCB
TIOCA
Time
TGRB
TGRA
Toggle output
Toggle output
Counter cleared by TGRB compare match
Figure 9.11 Example of Toggle Output Operation