SH7052 datasheet(556/919 Pages) RENESAS

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• MCx[5] Bit 4: Remote Transmission Request (RTR): Used to distinguish between data frames

and remote frames.

Bit 4: RTR

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

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

EXD_IDxx

Figure 15.4 Extended Identifier

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