SH7052 Datasheet, PDF (556/919 Pages) Renesas Technology Corp – SuperHTM RISC engine

• MCx[5] Bit 4: Remote Transmission Request (RTR): Used to distinguish between data frames
and remote frames.
Bit 4: RTR
0
1
Description
Data frame
Remote frame
• MCx[5] Bit 3: Identifier Extension (IDE): Used to distinguish between the standard format and
extended format of data frames and remote frames.
Bit 3: IDE
0
1
Description
Standard format
Extended format
• MCx[5] Bit 2—Reserved: The initial value of this bit is undefined; it must be initialized (by
writing 0 or 1).
• MCx[5] Bits 1 and 0: Extended Identifier (EXD_ID17, EXD_ID16)
MCx[8] Bits 7 to 0: Extended Identifier (EXD_ID15 to EXD_ID8)
MCx[7] Bits 7 to 0: Extended Identifier (EXD_ID7 to EXD_ID0)
These bits set the identifier (extended identifier) of data frames and remote frames.
Extended Identifier
IDE ID17 ID16 ID15 ID14 ID13 ID12 ID11 ID10 ID9 ID8 ID7 ID6 ID5
EXD_IDxx
ID4 ID3 ID2 ID1 ID0 RTR R1
EXD_IDxx
Figure 15.4 Extended Identifier
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