R5S72011 RENESAS [Renesas Technology Corp], R5S72011 Datasheet - Page 891

• Manufacturer Part Number: R5S72011
• Description: 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7200 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

19.6.5
When re-configuration of Mailboxes is required, the following procedures should be taken.
(1)
Two cases are possible.
• Change of ID, RTR, IDE, LAFM, Data, DLC, NMC, ATX, DART
• Change from transmit to receive configuration (MBC)
(2)
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 = B'000. 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.
Change configuration of transmit box
Change configuration (ID, RTR, IDE, LAFM, Data, DLC, NMC, ATX, DART) of
receive box or Change receive box to transmit box
Reconfiguration of Mailbox
Section 19 Controller Area Network (RCAN-ET)
Rev. 2.00 Sep. 07, 2007 Page 863 of 1164
REJ09B0321-0200