Atmel Evaluation Kit for the SAM4E Series of Flash Microcontrollers ATSAM4E-EK ATSAM4E-EK Data Sheet

SAM4E [DATASHEET]

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

1084

PWM_WPCR

0x400000E4

Write-only

See 

 for the list of registers that can be write-protected.



This command is performed only if the WPKEY corresponds to 0x50574D (“PWM” in ASCII).



0: The WPCMD command has no effect on the register group x.

1: The WPCMD command is applied to the register group x.



31

30

29

28

27

26

25

24

WPKEY

23

22

21

20

19

18

17

16

WPKEY

15

14

13

12

11

10

9

8

WPKEY

7

6

5

4

3

2

1

0

WPRG5

WPRG4

WPRG3

WPRG2

WPRG1

WPRG0

WPCMD

0

DISABLE_SW_PROT

Disables the software write protection of the register groups of which the bit WPRGx is at ‘1’.

1

ENABLE_SW_PROT

Enables the software write protection of the register groups of which the bit WPRGx is at ‘1’.

2

ENABLE_HW_PROT

Enables the hardware write protection of the register groups of which the bit WPRGx is at ‘1’. 
Only a hardware reset of the PWM controller can disable the hardware write protection. 
Moreover, to meet security requirements, the PIO lines associated with the PWM can not be 
configured through the PIO interface.

0x50574D

PASSWD

Writing any other value in this field aborts the write operation of the WPCMD field.

Always reads as 0