Atmel Evaluation Kit for AT32uC3A0512, 32-Bit AVR Microcontroller Atmel ATEVK1105 ATEVK1105 Data Sheet
Product codes
ATEVK1105
679
AT32UC3A
Figure 32-4.
Non Overlapped Center Aligned Waveforms
Note:
1. See
for a detailed description of center aligned waveforms.
When center aligned, the internal channel counter increases up to CPRD and.decreases down
to 0. This ends the period.
When left aligned, the internal channel counter increases up to CPRD and is reset. This ends
When left aligned, the internal channel counter increases up to CPRD and is reset. This ends
the period.
Thus, for the same CPRD value, the period for a center aligned channel is twice the period for a
Thus, for the same CPRD value, the period for a center aligned channel is twice the period for a
left aligned channel.
Waveforms are fixed at 0 when:
•
Waveforms are fixed at 0 when:
•
CDTY = CPRD and CPOL = 0
•
CDTY = 0 and CPOL = 1
Waveforms are fixed at 1 (once the channel is enabled) when:
•
•
CDTY = 0 and CPOL = 0
•
CDTY = CPRD and CPOL = 1
The waveform polarity must be set before enabling the channel. This immediately affects the
channel output level. Changes on channel polarity are not taken into account while the channel
is enabled.
PWM0
PWM1
Period
No overlap
32058K
AVR32-01/12