HD64F2638F20J Datasheet, PDF (403/1512 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

H8S/2639, H8S/2638, H8S/2636,
H8S/2630, H8S/2635 Group
Section 10 16-Bit Timer Pulse Unit (TPU)
• Examples of waveform output operation
Figure 10-10 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
TGRA
TGRB
H'0000
TIOCA
TIOCB
No change
No change
No change
Time
1 output
No change
0 output
Figure 10-10 Example of 0 Output/1 Output Operation
Figure 10-11 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
TGRB
TGRA
H'0000
Counter cleared by TGRB compare match
Time
TIOCB
TIOCA
Toggle output
Toggle output
Figure 10-11 Example of Toggle Output Operation
REJ09B0103-0800 Rev. 8.00
May 28, 2010
Page 353 of 1458