Atmel Xplained Pro Evaluation Kit ATSAM4E-XPRO ATSAM4E-XPRO Data Sheet

1081

SAM4E [DATASHEET]

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

PWM_SSPUP

0x400000A4

Write-only

This register can only be written if bits WPSWS3 and WPHWS3 are cleared in the 

.

This register acts as a double buffer for the SPRD value. This prevents an unexpected waveform when modifying the 
spread spectrum limit value.

Only the first 16 bits (channel counter size) are significant.



The spread spectrum limit value defines the range for the spread spectrum counter. It is introduced in order to achieve con-
stant varying period for the output waveform.

31

30

29

28

27

26

25

24

–

–

–

–

–

–

–

–

23

22

21

20

19

18

17

16

SPRDUP

15

14

13

12

11

10

9

8

SPRDUP

7

6

5

4

3

2

1

0

SPRDUP