SAM7X128_14 Datasheet, PDF (533/662 Pages) ATMEL Corporation – ARM-based Flash MCU

36.8.19 CAN Message Control Register
Name:
CAN_MCRx
Access Type:
Write-only
31
30
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24
–
–
–
–
–
–
–
–
23
22
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20
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18
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16
MTCR
MACR
–
MRTR
MDLC
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14
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9
8
–
–
–
–
–
–
–
–
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2
1
0
–
–
–
–
–
–
–
–
• MDLC: Mailbox Data Length Code
Mailbox Object Type
Receive
Receive with overwrite
Transmit
Consumer
Producer
Description
No action.
No action.
Length of the mailbox message.
No action.
Length of the mailbox message to be sent after the remote frame
reception.
• MRTR: Mailbox Remote Transmission Request
Mailbox Object Type
Receive
Receive with overwrite
Transmit
Consumer
Producer
Description
No action
No action
Set the RTR bit in the sent frame
No action, the RTR bit in the sent frame is set automatically
No action
Consumer situations can be handled automatically by setting the mailbox object type in Consumer. This requires only one
mailbox.
It can also be handled using two mailboxes, one in reception, the other in transmission. The MRTR and the MTCR bits must be
set in the same time.
SAM7X Series [DATASHEET]
6120K–ATARM–11-Feb-14
533