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17.1
Overview
The Timer X1 is capable of outputting two different types of independent waveforms using the
free running counter (FRC) as the basic means and it is also applicable to measurements of the
durations of input pulses and the cycles external clocks.
17.1.1
Features
Listed below are the features of the Timer X1.
• Choices of 4 different types of counter inputting clocks are available for your selection.
You can select from among three different types of internal clocks (φ/4, φ/16 and φ/64) and
the DVCFG.
• Two independent output comparing functions
Capable of outputting two different types of independent waveforms.
• Four independent input capturing functions
The rising edge or falling edge can be selected for use. The buffer operation can also be
designated.
• Counter clearing designation is workable.
The counter readings can be cleared by compare match A.
• Seven types of interrupt causes
Comparing match × 2 causes, input capture × 4 causes and overflow × 1 cause are available
for use and they can make respective interrupt requests independently.
Section 17 Timer X1
Rev. 2.0, 11/00, page 355 of 1037
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