HD64F3039F18 Datasheet, PDF (262/710 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8 Family / H8/300H Series

Section 8 16-Bit Integrated Timer Unit (ITU)
Examples of waveform output: Figure 8.20 shows examples of 0 and 1 output. TCNT operates
as a free-running counter, 0 output is selected for compare match A, and 1 output is selected for
compare match B. When the pin is already at the selected output level, the pin level does not
change.
TCNT value
H'FFFF
GRB
GRA
H'0000
TIOCB
No change
Time
No change 1 output
TIOCA
No change
No change
0 output
Figure 8.20 0 and 1 Output (Examples)
Figure 8.21 shows examples of toggle output. TCNT operates as a periodic counter, cleared by
compare match B. Toggle output is selected for both compare match A and B.
TCNT value
GRB
Counter cleared by compare match with GRB
GRA
H'0000
TIOCB
TIOCA
Figure 8.21 Toggle Output (Example)
Rev.3.00 Mar. 26, 2007 Page 238 of 682
REJ09B0353-0300
Time
Toggle
output
Toggle
output