HD6433640 HITACHI [Hitachi Semiconductor], HD6433640 Datasheet - Page 242

• Manufacturer Part Number: HD6433640
• Description: H8/3644 Series Hardware Manual
• Manufacturer: HITACHI [Hitachi Semiconductor]

9.4.6
Pulse Output with Arbitrary Duty Cycle: Figure 9.11 shows an example of output of pulses
with an arbitrary duty cycle. To set up this output:
With these settings, a waveform is output without further software intervention, with a period
determined by TCORA and a pulse width determined by TCORB.
234
H'FF
TCORA
TCORB
H'00
TMOV
Clear bit CCLR1 to 0 and set bit CCLR0 to 1 in TCRV0 so that TCNTV will be cleared by
compare match with TCORA.
Set bits OS3 to OS0 to 0110 in TCSRV so that the output will go to 1 at compare match with
TCORA and to 0 at compare match with TCORB.
Set bits CKS2 to CKS0 in TCRV0 and bit ICKS0 in TCRV1 to select the desired clock source.
Application Examples
TCNTV
Figure 9.11 Pulse Output Example
Counter cleared