10 can transfer command register – Rainbow Electronics AT91CAP9S250A User Manual
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6264A–CAP–21-May-07
AT91CAP9S500A/AT91CAP9S250A
39.8.10
CAN Transfer Command Register
Name:
CAN_TCR
Access Type:
Write-only
This register initializes several transfer requests at the same time.
• MBx: Transfer Request for Mailbox x
This flag clears the MRDY and MABT flags in the corresponding CAN_MSRx register.
When several mailboxes are requested to be transmitted simultaneously, they are transmitted in turn, starting with the mail-
box with the highest priority. If several mailboxes have the same priority, then the mailbox with the lowest number is sent
first (i.e., MB0 will be transferred before MB1).
• TIMRST: Timer Reset
Resets the internal timer counter. If the internal timer counter is frozen, this command automatically re-enables it. This
command is useful in Time Triggered mode.
31
30
29
28
27
26
25
24
TIMRST
–
–
–
–
–
–
–
23
22
21
20
19
18
17
16
–
–
–
–
–
–
–
–
15
14
13
12
11
10
9
8
MB15
MB14
MB13
MB12
MB11
MB10
MB9
MB8
7
6
5
4
3
2
1
0
MB7
MB6
MB5
MB4
MB3
MB2
MB1
MB0
Mailbox Object Type
Description
Receive
It receives the next message.
Receive with overwrite
This triggers a new reception.
Transmit
Sends data prepared in the mailbox as soon as possible.
Consumer
Sends a remote frame.
Producer
Sends data prepared in the mailbox after receiving a remote frame from a
consumer.