HD6417021 Hitachi Semiconductor, HD6417021 Datasheet - Page 264

• Manufacturer Part Number: HD6417021
• Description: SuperH RISC engine
• Manufacturer: Hitachi Semiconductor

• Waveform output operation
250 HITACHI
H'FFFF
Figure 10.20 illustrates 0 output/1 output. In the example, TCNT is a free-running counter, 0 is
output upon compare match A and 1 is output upon compare match B. When the pin level
matches the set level, the pin level does not change.
Figure 10.21 shows an example of toggle output. In the figure, the TCNT operates as a
periodic counter cleared by GRB compare match with toggle output at both compare match A
and compare match B.
TIOCB
TIOCA
TCNT value
GRB
GRA
Figure 10.20 Example of 0 Output/1 Output
Does not change
Does not change
Does not change
Does not change
1 output
0 output
Time