14 can message id register – Rainbow Electronics AT91CAP9S250A User Manual
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6264A–CAP–21-May-07
AT91CAP9S500A/AT91CAP9S250A
39.8.14
CAN Message ID Register
Name:
CAN_MIDx
Access Type:
Read/Write
To prevent concurrent access with the internal CAN core, the application must disable the mailbox before writing to
CAN_MIDx registers.
• MIDvB: Complementary bits for identifier in extended frame mode
If MIDE is cleared, MIDvB value is 0.
• MIDE: Identifier Version
This bit allows the user to define the version of messages processed by the mailbox. If set, mailbox is dealing with version
2.0 Part B messages; otherwise, mailbox is dealing with version 2.0 Part A messages.
• MIDvA: Identifier for standard frame mode
31
30
29
28
27
26
25
24
–
–
MIDE
MIDvA
23
22
21
20
19
18
17
16
MIDvA
MIDvB
15
14
13
12
11
10
9
8
MIDvB
7
6
5
4
3
2
1
0
MIDvB
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