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943
11100B–ATARM–31-Jul-12
SAM4S Series [Preliminary]
• PTRCS: PDCDMA Transfer Request Comparison Selection
Selection of the comparison used to set the flag WRDY and the corresponding
PDC
transfer request.
37.7.10
PWM Sync Channels Update Control Register
Name:
PWM_SCUC
Address:
0x40020028
Access:
Read-write
• UPDULOCK: Synchronous Channels Update Unlock
0 = No effect
1 = If the UPDM field is set to “0” in
“PWM Sync Channels Mode Register” on page 942
, writing the UPDULOCK bit to “1”
triggers the update of the period value, the duty-cycle and the dead-time values of synchronous channels at the beginning
of the next PWM period. If the field UPDM is set to “1” or “2”, writing the UPDULOCK bit to “1” triggers only the update of
the period value and of the dead-time values of synchronous channels.
This bit is automatically reset when the update is done.
31
30
29
28
27
26
25
24
–
–
–
–
–
–
–
–
23
22
21
20
19
18
17
16
–
–
–
–
–
–
–
–
15
14
13
12
11
10
9
8
–
–
–
–
–
–
–
–
7
6
5
4
3
2
1
0
–
–
–
–
–
–
–
UPDULOCK
Summary of Contents for SAM4S Series
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Page 1143: ...1143 11100B ATARM 31 Jul 12 SAM4S Series Preliminary Figure 43 4 64 lead LQFP Package Drawing ...
Page 1145: ...1145 11100B ATARM 31 Jul 12 SAM4S Series Preliminary Figure 43 5 64 lead QFN Package Drawing ...