Datasheet

982
SAM4S Series [DATASHEET]
11100F–ATARM–29-Jan-14
39.7.38 PWM Channel Duty Cycle Update Register
Name: PWM_CDTYUPDx [x=0..3]
Address: 0x40020208 [0], 0x40020228 [1], 0x40020248 [2], 0x40020268 [3]
Access: Write-only.
This register acts as a double buffer for the CDTY value. This prevents an unexpected waveform when modifying the waveform
duty-cycle.
Only the first 16 bits (channel counter size) are significant.
• CDTYUPD: Channel Duty-Cycle Update
Defines the waveform duty-cycle. This value must be defined between 0 and CPRD (PWM_CPRx).
31 30 29 28 27 26 25 24
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23 22 21 20 19 18 17 16
CDTYUPD
15 14 13 12 11 10 9 8
CDTYUPD
76543210
CDTYUPD