Atmel SAM4S-XPLD Atmel ATSAM4S-XPLD ATSAM4S-XPLD Hoja De Datos

 863

SAM4S [DATASHEET]

11100E–ATARM–24-Jul-13

The two complementary outputs DTOHx and DTOLx of the dead-time generator can be forced to a value defined by the
software.

The fields OSHx and OSLx in the 

 (PWM_OS) allow the outputs of the dead-time

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 

 (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.

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