SH7205 Datasheet, PDF (974/1904 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7200 Series

Section 20 Controller Area Network (RCAN-TL1)
MBC[2:0] (Mailbox Configuration): These bits configure the nature of each Mailbox as follows.
When MBC = 111 (Bin), the Mailbox is inactive, i.e., it does not receive or transmit a message
regardless of TXPR or other settings. The MBC = ’110’, ‘101’ and ‘100’ settings are prohibited.
When the MBC is set to any other value, the LAFM field becomes available. Please don't set
TXPR when MBC is set as reception as there is no hardware protection, and TXPR will remain
set. MBC[1] of Mailbox-0 is fixed to "1" by hardware. This is to ensure that MB0 cannot be
configured to transmit Messages.
Data
Remote Data
Frame Frame Frame
MBC[2] MBC[1] MBC[0] Transmit Transmit Receive
Remote
Frame
Receive
Remarks
0
0
0
Yes
Yes
No
No
• Not allowed for Mailbox-0
• Time-Triggered
transmission can be used
0
0
1
Yes
Yes
No
Yes
• Can be used with ATX*
• Not allowed for Mailbox-0
• LAFM can be used
0
1
0
No
No
Yes
Yes
• Allowed for Mailbox-0
• LAFM can be used
0
1
1
No
No
Yes
No
• Allowed for Mailbox-0
• LAFM can be used
1
0
0
Setting prohibited
1
0
1
Setting prohibited
1
1
0
Setting prohibited
1
1
1
Mailbox inactive (Initial value)
Notes: * In order to support automatic retransmission, RTR shall be "0" when MBC = 001(bin)
and ATX = 1.
When ATX = 1 is used the filter for IDE must not be used.
Rev. 1.00 Mar. 25, 2008 Page 942 of 1868
REJ09B0372-0100