Atmel SAM4S-EK2 Atmel ATSAM4S-EK2 ATSAM4S-EK2 Hoja De Datos
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ATSAM4S-EK2
863
SAM4S [DATASHEET]
11100E–ATARM–24-Jul-13
Figure 38-7. Complementary Output Waveforms
38.6.2.5 Output Override
The two complementary outputs DTOHx and DTOLx of the dead-time generator can be forced to a value defined by the
software.
software.
Figure 38-8. Override Output Selection
generator DTOHx and DTOLx to be overridden by the value defined in the fields OOVHx and OOVLx in the
(PWM_OOV).
The set registers
and PWM_OSSUPD) enable the override of the outputs of a channel regardless of other channels. In the same way, the
clear registers
clear registers
(PWM_OSC
and PWM_OSCUPD) disable the override of the outputs of a channel regardless of other channels.
By using buffer registers PWM_OSSUPD and PWM_OSCUPD, the output selection of PWM outputs is done
synchronously to the channel counter, at the beginning of the next PWM period.
synchronously to the channel counter, at the beginning of the next PWM period.
DTHx
DTLx
output waveform OCx
CPOLx = 0
output waveform DTOHx
DTHIx = 0
output waveform DTOLx
DTLIx = 0
output waveform DTOHx
DTHIx = 1
output waveform DTOLx
DTLIx = 1
DTHx
DTLx
output waveform OCx
CPOLx = 1
output waveform DTOHx
DTHIx = 0
output waveform DTOLx
DTLIx = 0
output waveform DTOHx
DTHIx = 1
output waveform DTOLx
DTLIx = 1
DTOHx
OOVHx
OOOHx
OSHx
0
1
DTOLx
OOVLx
OOOLx
OSLx
0
1