Chapter 9
16-bit Timer
IX - 58 PWM Output
■ Setting PWM Output
Select the timer output waveform selection flag of the timer compare/capture mode register.
When TM8AIO, TM9AIO, TM10AIO, TM11IO0 and TM11IO1 pins are used,
Set when TMnBC and TMnCA match, and reset when TMnBC and TMnCB match.
Set when TMnBC and TMnCA match, and reset when TMnBC overflows.
When TM8BIO, TM9BIO and TM10BI0 pins are used,
Set when TMnBC and TMnCB match, and reset when TMnBC and TMnCA match.
Set when TMnBC and TMnCB match, and reset when TMnBC overflows.
Timer pins polarity selection is a flag which is set the condition of the pin output. When it is set to “0”, the initial
value is “L”, and when it is set to “1”, the initial value is “H” and the polarity at the outputs is inverted. The regis-
ters and flags set to the pins at output are shown below.
Table:9.8.3 Selecting Timer Output Waveform and Timer Pin Polarity
Timer output waveform selection Timer pin polarity selection
TM8AIO TM8MDA(TMAO1-0) TM8MDA(TMAEG)
TM8BIO TM8MDB(TMBO1-0) TM8MDB(TMBEG)
TM9AIO TM9MDA(TMAO1-0) TM9MDA(TMAEG)
TM9BIO TM9MDB(TMBO1-0) TM9MDB(TMBEG)
TM10AIO TM10MDA(TMAO1-0) TM10MDA(TMAEG)
TM10BIO TM10MDB(TMBO1-0) TM10MDB(TMBEG)
TM11IO0 TM11MDA(TMAO1-0) TM11MDA(TMAEG)
TM11IO1 TM11MDA(TMAO1-0) TM11MDA(TMAEG)
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