Datasheet

536
6120F–ATARM–03-Oct-06
AT91SAM7X512/256/128 Preliminary
36.8.13 CAN Message Acceptance Mask Register
Name: CAN_MAMx
Access Type: Read/Write
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.
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
76543210
MIDvB