DCAN Registers
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23.4.50 IF3DATB Register (offset = 154h) [reset = 0h]
IF3DATB is shown in Figure 23-68 and described in Table 23-63.
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
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