SH7047 Datasheet, PDF (237/764 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTMRISC engine Family/SH7000 Series

2. Examples of Waveform Output Operation
Figure 10.7 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 coincide, the pin level does not change.
TCNT value
H'FFFF
TGRA
TGRB
H'0000
TIOCA
TIOCB
No change
No change
Time
No change
1 output
No change
0 output
Figure 10.7 Example of 0 Output/1 Output Operation
Figure 10.8 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 10.8 Example of Toggle Output Operation
Time
Toggle output
Toggle output
Rev. 2.00, 09/04, page 197 of 720