SH7147 Datasheet, PDF (708/1108 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH™ RISC engine Family

Section 17 Controller Area Network (RCAN-ET)
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
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
DLC[3:0] (Data Length Code): These bits encode the number of data bytes from 0,1, 2, … 8 that
will be transmitted in a data frame. Please note that when a remote frame request is transmitted the
DLC value to be used must be the same as the DLC of the data frame that is requested.
DLC[3] DLC[2] DLC[1] DLC[0] Description
0
0
0
0
Data Length = 0 bytes (Initial value)
0
0
0
1
Data Length = 1 byte
0
0
1
0
Data Length = 2 bytes
0
0
1
1
Data Length = 3 bytes
0
1
0
0
Data Length = 4 bytes
0
1
0
1
Data Length = 5 bytes
0
1
1
0
Data Length = 6 bytes
0
1
1
1
Data Length = 7 bytes
1
x
x
x
Data Length = 8 bytes
Rev. 3.00 Oct. 06, 2008 Page 684 of 1080
REJ09B0230-0300