Atmel ARM-Based Evaluation Kit for SAM4S16C, 32-Bit ARM® Cortex® Microcontroller ATSAM4S-WPIR-RD ATSAM4S-WPIR-RD Data Sheet
Product codes
ATSAM4S-WPIR-RD
SAM4S Series [DATASHEET]
Atmel-11100G-ATARM-SAM4S-Datasheet_27-May-14
996
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.
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
–
–
–
–
–
–
–
–
23
22
21
20
19
18
17
16
CDTYUPD
15
14
13
12
11
10
9
8
CDTYUPD
7
6
5
4
3
2
1
0
CDTYUPD