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

SAM4E [DATASHEET]

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

820

SPI_WPMR

0x400880E4

Read/Write

.



0: Disables the Write Protection if WPKEY corresponds to 0x535049 (“SPI” in ASCII)

1: Enables the Write Protection if WPKEY corresponds to 0x535049 (“SPI” in ASCII)

See 

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



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

–

–

–

–

–

–

–

WPEN

0x535049

PASSWD

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

Always reads as 0.