Atmel Xplained Pro Evaluation Kit ATSAM4E-XPRO ATSAM4E-XPRO Ficha De Dados

1045

SAM4E [DATASHEET]

Atmel-11157D-ATARM-SAM4E16-SAM4E8-Datasheet_12-Jun-14

It is possible to change the comparison values and the comparison configurations while the channel 0 is enabled
(see 

). 

To prevent unexpected comparison match, the user must use the 

(PWM_CMPVUPDx) and the 

 (PWM_CMPMUPDx) to change

respectively the comparison values and the comparison configurations while the channel 0 is still enabled. These
registers hold the new values until the end of the comparison update period (when CUPRCNT is equal to CUPR in

 (PWM_CMPMx) and the end of the current PWM period, then update the

values for the next period.

CAUTION: The write of the register PWM_CMPVUPDx must be followed by a write of the register
PWM_CMPMUPDx.

Note:

If the update registers PWM_CMPVUPDx and PWM_CMPMUPDx are written several times between two updates, 
only the last written value are taken into account.

End of PWM period and
end of update period
of synchronous channels

PWM_SCUPUPD Value

User's Writing

PWM_SCUP