SAM7X128_14 Datasheet, PDF (428/662 Pages) ATMEL Corporation – ARM-based Flash MCU

33.6.13 PWM Channel Update Register
Register Name:
PWM_CUPD[0..X-1]
Access Type:
Write-only
31
30
29
28
27
26
25
24
CUPD
23
22
21
20
19
18
17
16
CUPD
15
14
13
12
11
10
9
8
CUPD
7
6
5
4
3
2
1
0
CUPD
This register acts as a double buffer for the period or the duty cycle. This prevents an unexpected waveform when modifying the
waveform period or duty-cycle.
Only the first 16 bits (internal channel counter size) are significant.
CPD (PWM_CMRx Register)
0
1
The duty-cycle (CDTY in the PWM_CDTYx register) is updated with the CUPD value at the
beginning of the next period.
The period (CPRD in the PWM_CPRDx register) is updated with the CUPD value at the beginning
of the next period.
SAM7X Series [DATASHEET]
6120K–ATARM–11-Feb-14
428