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

SAM4E [DATASHEET]

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

704

CAN_MSRx [x=0..7]

0x40010210 (0)[0], 0x40010230 (0)[1], 0x40010250 (0)[2], 0x40010270 (0)[3], 0x40010290 (0)[4], 

0x400102B0 (0)[5], 0x400102D0 (0)[6], 0x400102F0 (0)[7], 0x40014210 (1)[0], 0x40014230 (1)[1], 0x40014250 (1)[2], 
0x40014270 (1)[3], 0x40014290 (1)[4], 0x400142B0 (1)[5], 0x400142D0 (1)[6], 0x400142F0 (1)[7]

Read-only

These register fields are updated each time a message transfer is received or aborted.

MMI is cleared by reading the CAN_MSRx.

MRDY, MABT are cleared by writing MTCR or MACR in the CAN_MCRx.

Warning: MRTR and MDLC state depends partly on the mailbox object type.



This field is updated only when time-triggered operations are disabled (TTM cleared in CAN_MR). If the TEOF field in the 
CAN_MR is cleared, TIMESTAMP is the internal timer value at the start of frame of the last message received or sent by 
the mailbox. If the TEOF field in the CAN_MR is set, TIMESTAMP is the internal timer value at the end of frame of the last 
message received or sent by the mailbox.

In Time Triggered Mode, MTIMESTAMP is set to 0.





31

30

29

28

27

26

25

24

–

–

–

–

–

–

–

MMI

23

22

21

20

19

18

17

16

MRDY

MABT

–

MRTR

MDLC

15

14

13

12

11

10

9

8

MTIMESTAMP

7

6

5

4

3

2

1

0

MTIMESTAMP

Receive

Length of the first mailbox message received

Receive with overwrite

Length of the last mailbox message received

Transmit

No action

Consumer

Length of the mailbox message received

Producer

Length of the mailbox message to be sent after the remote frame reception

Receive

The first frame received has the RTR bit set.

Receive with overwrite

The last frame received has the RTR bit set.

Transmit

Reserved

Consumer

Reserved. After setting the MOT field in the CAN_MMR, MRTR is reset to 1.

Producer

Reserved. After setting the MOT field in the CAN_MMR, MRTR is reset to 0.