Figure 10.4 Periodic Counter Operation; Figure 10.5 Example Of Setting Procedure For Waveform Output By Compare Match - Hitachi H8S/2628 Hardware Manual

TCNT value
TGR
H'0000
CST bit
TGF
Waveform Output by Compare Match: The TPU can perform 0, 1, or toggle output from the
corresponding output pin using compare match.
1. Example of setting procedure for waveform output by compare match
Figure 10.5 shows an example of the setting procedure for waveform output by compare match
Output selection
Select waveform output mode
Set output timing
Start count operation
<Waveform output>

Figure 10.5 Example of Setting Procedure for Waveform Output by Compare Match

Figure 10.4 Periodic Counter Operation

[1]
Select initial value 0 output or 1 output, and
compare match output value 0 output, 1 output,
or toggle output, by means of TIOR. The set
initial value is output at the TIOC pin unit the
first compare match occurs.
[2]
Set the timing for compare match generation in
[1]
TGR.
[3]
Set the CST bit in TSTR to 1 to start the count
operation.
[2]
[3]
Counter cleared by TGR
compare match
Flag cleared by software or
DTC activation
Rev. 1.0, 09/02, page 199 of 568
Time