M16CSLASH1N datasheet(145/238 Pages) RENESAS

145 / 238 page

Rev.1.00

Oct 20, 2004

page 133 of 222

M16C/1N Group

16. CAN Module

REJ09B0007-0100Z

16.2 CAN0 Message Box

Table 16.1 shows the memory mapping of the CAN0 message box.

It is possible to access to the message box in byte or word.

Mapping of the message contents differs from byte access to word access. Byte access or word access

can be selected by the MsgOrder bit of the C0CTLR register.

Table 16.1 Memory Mapping of CAN0 Message Box (n = 0 to 15: the number of the slot)

Message content (Memory mapping)

Byte access (8 bits)

Word access (16 bits)

026016 + n • 16 + 0

SID10 to SID6

SID5 to SID0

026016 + n • 16 + 1

SID5 to SID0

SID10 to SID6

026016 + n • 16 + 2

EID17 to EID14

EID13 to EID6

026016 + n • 16 + 3

EID13 to EID6

EID17 to EID14

026016 + n • 16 + 4

EID5 to EID0

Data Length Code (DLC)

026016 + n • 16 + 5

Data Length Code (DLC)

EID5 to EID0

026016 + n • 16 + 6

Data byte 0

Data byte 1

026016 + n • 16 + 7

Data byte 1

Data byte 0

••

•

••

•

••

•

026016 + n • 16 + 13

Data byte 7

Data byte 6

026016 + n • 16 + 14

Time stamp high-order byte

Time stamp low-order byte

026016 + n • 16 + 15

Time stamp low-order byte

Time stamp high-order byte

Address

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