DCAN Registers
23.4.50 IF3DATB Register (offset = 154h) [reset = 0h]
IF3DATB is shown in
and described in
The data bytes of CAN messages are stored in the IF3 registers in the following order. In a CAN data
frame, Data 0 is the first, and Data 7 is the last byte to be transmitted or received. In CAN's serial bit
stream, the MSB of each byte will be transmitted first.
Figure 23-68. IF3DATB Register
31
30
29
28
27
26
25
24
Data_7
R-0h
23
22
21
20
19
18
17
16
Data_6
R-0h
15
14
13
12
11
10
9
8
Data_5
R-0h
7
6
5
4
3
2
1
0
Data_4
R-0h
LEGEND: R/W = Read/Write; R = Read only; W1toCl = Write 1 to clear bit; -n = value after reset
Table 23-63. IF3DATB Register Field Descriptions
Bit
Field
Type
Reset
Description
31-24
Data_7
R
0h
Data 7.
23-16
Data_6
R
0h
Data 6.
15-8
Data_5
R
0h
Data 5.
7-0
Data_4
R
0h
Data 4.
3984
Controller Area Network (CAN)
SPRUH73H – October 2011 – Revised April 2013
Copyright © 2011–2013, Texas Instruments Incorporated