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8-Bit Timer Mode
• TCFH and OCRFH
The output at pin TMOFH toggles when there is a compare match. If the compare match signal
occurs at the same time as new data is written in TCRF by a MOV instruction, however, the
new value written in bit TOLH will be output at pin TMOFH.
If an OCRFH write occurs at the same time as a compare match signal, the compare match
signal is inhibited. If a compare match occurs between the written data and the counter value,
however, a compare match signal will be generated at that point. The compare match signal is
output in synchronization with the TCFH clock.
If a TCFH write occurs at the same time as an overflow signal, the overflow signal is not
output.
• TCFL and OCRFL
The output at pin TMOFL toggles when there is a compare match. If the compare match signal
occurs at the same time as new data is written in TCRF by a MOV instruction, however, the
new value written in bit TOLL will be output at pin TMOFL.
If an OCRFL write occurs at the same time as a compare match signal, the compare match
signal is inhibited. If a compare match occurs between the written data and the counter value,
however, a compare match signal will be generated at that point. The compare match signal is
output in synchronization with the TCFL clock, so if this clock is stopped no compare match
signal will be generated, even if a compare match occurs.
If a TCFL write occurs at the same time as an overflow signal, the overflow signal is not
output.
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