Atmel SAM4L Xplained Pro Evaluation Kit Atmel ATSAM4L-XPRO ATSAM4L-XPRO 数据表

42023E–SAM–07/2013

PECR

Read-only

Offset:

0x14

0x00000000

The calculated PEC value. Updated automatically by hardware after each byte has been transferred. Reset by hardware after a 

STOP condition. Provided if the user manually wishes to control when the PEC byte is transmitted, or wishes to access the PEC 

value for other reasons. In ordinary operation, the PEC handling is done automatically by hardware.

31

30

29

28

27

26

25

24

-

-

-

-

-

-

-

-

23

22

21

20

19

18

17

16

-

-

-

-

-

-

-

-

15

14

13

12

11

10

9

8

-

-

-

-

-

-

-

-

7

6

5

4

3

2

1

0

PEC