r5f71374an80fpv Renesas Electronics Corporation., r5f71374an80fpv Datasheet - Page 804

• Manufacturer Part Number: r5f71374an80fpv
• Description: 32-bit Risc Microcomputer Superh?? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

Section 19 Controller Area Network (RCAN-ET)
19.4.5
When re-configuration of Mailboxes is required, the following procedures should be taken.
• Change configuration of transmit box
• Change configuration (ID, RTR, IDE, LAFM, Data, DLC, NMC, ATX, DART, MBC) of
Rev. 1.00 Sep. 21, 2007 Page 778 of 1124
REJ09B0402-0100
Two cases are possible.
 Change of ID, RTR, IDE, LAFM, Data, DLC, NMC, ATX, DART
 Change from transmit to receive configuration (MBC)
receiver box or Change receiver box to transmitter box
The configuration can be changed only in Halt Mode.
RCAN-ET will not lose a message if the message is currently on the CAN bus and RCAN-ET
is a receiver. RCAN-ET will be moving into Halt Mode after completing the current reception.
Please note that it might take longer if RCAN-ET is receiving or transmitting a message (as the
transition to the halt state is delayed until the end of the reception/transmission), and also
RCAN-ET will not be able to receive/transmit messages during the Halt Mode.
In case RCAN-ET is in the Bus Off state the transition to halt mode depends on the
configuration of the bit 6 and 14 of MCR.
This change is possible only when MBC=3'b000. Confirm that the corresponding TXPR is
not set. The configuration (except MBC bit) can be changed at any time.
Confirm that the corresponding TXPR is not set. The configuration can be changed only in
Halt or reset state. Please note that it might take longer for RCAN-ET to transit to halt state
if it is receiving or transmitting a message (as the transition to the halt state is delayed until
the end of the reception/transmission), and also RCAN-ET will not be able to
receive/transmit messages during the Halt state.
In case RCAN-ET is in the Bus Off state the transition to halt state depends on the
configuration of the bit 6 of MCR and also bit and 14 of MCR.
Reconfiguration of Mailbox