Id Register (Idrx, X = 7 To 0) - Fujitsu MB90895 Series Hardware Manual

CHAPTER 16 CAN controller
16.3.21

ID Register (IDRx, x = 7 to 0)

The ID register (IDR) sets the ID of the message buffer used for transmitting and
receiving.In the standard frame format 11 bits from ID28 to ID18 are used, and in the
extended frame format 29 bits from ID28 to ID0 are used.
I ID Register (IDR)
BYTE0
BYTE1
BYTE2
BYTE3
R/W : Read/Write
X : Undefined
−
: Unused
: Standard frame format uses in bit
528
Figure 16.3-28 ID Register (IDR)
bit 7 6 5 4
ID28 ID27 ID26 ID25
R/W R/W R/W R/W
15 14 13 12
ID20 ID19 ID18 ID17
R/W R/W R/W R/W
7 6 5 4
ID12 ID11 ID10 ID9
R/W R/W R/W R/W
bit 15 14 13 12
ID4 ID3 ID2 ID1
R/W R/W R/W R/W
3 2 1 0
ID24 ID23 ID22 ID21
R/W R/W R/W R/W
11 10 9 8
ID16 ID15 ID14 ID13
R/W R/W R/W R/W
3 2 1 0
ID8 ID7 ID6 ID5
R/W R/W R/W R/W
11 10 9 8
ID0
R/W
Reset value
X X X X X X X X
B
Reset value
X X X X X X X X
B
Rsest value
X X X X X X X X
B
Reset value
X X X X X X X X
B