Atmel ARM-Based Evaluation Kit for SAM4S16C, 32-Bit ARM® Cortex® Microcontroller ATSAM4S-WPIR-RD ATSAM4S-WPIR-RD Data Sheet

SAM4S Series [DATASHEET]

Atmel-11100G-ATARM-SAM4S-Datasheet_27-May-14

990

PWM_CMPVUPDx

0x40020134 [0], 0x40020144 [1], 0x40020154 [2], 0x40020164 [3], 0x40020174 [4], 0x40020184 [5], 

0x40020194 [6], 0x400201A4 [7]
Access:

Write-only

This register acts as a double buffer for the CV and CVM values. This prevents an unexpected comparison x match.
Only the first 16 bits (channel counter size) of field CV

UPD

 are significant.

Define the comparison x value to be compared with the counter of the channel 0.

0: The comparison x between the counter of the channel 0 and the comparison x value is performed when this counter is 

incrementing.
1: The comparison x between the counter of the channel 0 and the comparison x value is performed when this counter is 

decrementing.

Note: This bit is useless if the counter of the channel 0 is left aligned (CALG = 0 in 

)

 to be taken into account, the write of the register PWM_CMPVUPDx must be followed by a write of the register 

PWM_CMPMUPDx.

31

30

29

28

27

26

25

24

–

–

–

–

–

–

–

CVMUPD

23

22

21

20

19

18

17

16

CVUPD

15

14

13

12

11

10

9

8

CVUPD

7

6

5

4

3

2

1

0

CVUPD