Rainbow Electronics AT91CAP9S250A - Manual (Page 729)

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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