Rainbow Electronics AT91CAP9S250A User Manual

Page 728

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6264A–CAP–21-May-07

AT91CAP9S500A/AT91CAP9S250A

To prevent concurrent access with the internal CAN core, the application must disable the mailbox before writing to
CAN_MAMx registers.

• MIDvB: Complementary bits for identifier in extended frame mode

Acceptance mask for corresponding field of the message IDvB register of the mailbox.

• MIDvA: Identifier for standard frame mode

Acceptance mask for corresponding field of the message IDvA register of the mailbox.

• MIDE: Identifier Version

0= Compares IDvA from the received frame with the CAN_MIDx register masked with CAN_MAMx register.

1= Compares IDvA and IDvB from the received frame with the CAN_MIDx register masked with CAN_MAMx register.

MIDvB

7

6

5

4

3

2

1

0

MIDvB

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