H838799 Datasheet, PDF (331/686 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer

Section 14 16-Bit Timer Pulse Unit (TPU)
(b) Examples of Waveform Output Operation
Figure 14.9 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 such that 1 is output by compare match A, and 0 is output by compare match B. When the
set level and the pin level match, the pin level does not change.
TCNT value
H'FFFF
TGRA
TGRB
H'0000
TIOCA
TIOCB
No change
No change
No change
Time
1 output
No change
0 output
Figure 14.9 Example of 0 Output/1 Output Operation
Figure 14.10 shows an example of toggle output.
In this example, TCNT has been designated as a periodic counter (with counter clearing on
compare match B), and settings have been made such that the output is toggled by both compare
match A and compare match B.
TCNT value
H'FFFF
TGRB
TGRA
H'0000
Counter cleared by TGRB compare match
TIOCB
TIOCA
Figure 14.10 Example of Toggle Output Operation
Time
Toggle output
Toggle output
Rev. 1.00 Jul. 11, 2007 Page 293 of 644
REJ09B0380-0100