Renesas H8SX/1650, Hardware Manual

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Section 9 16-Bit Timer Pulse Unit (TPU)
Rev.2.00 Jun. 28, 2007 Page 349 of 666
REJ09B0311-0200
(b)
Examples of waveform output operation
Figure 9.6 shows an example of 0-output and 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 match, the pin level does not change.
TCNT value
H'FFFF
H'0000
TIOCA
TIOCB
Time
TGRA
TGRB
No change No change
No change No change
1-output
0-output
Figure 9.6 Example of 0-Output/1-Output Operation
Figure 9.7 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 9.7 Example of Toggle Output Operation