DCAN Registers
Table 23-58. IF3OBS Register Field Descriptions (continued)
Bit
Field
Type
Reset
Description
9
IF3_SA
R
0h
IF3 Status of Arbitration data read access
0x0 = All Arbitration data bytes are already read out, or are not
marked to be read.
0x1 = Arbitration section has still data to be read out.
8
IF3_SM
R
0h
IF3 Status of Mask data read access
0x0 = All mask data bytes are already read out, or are not marked to
be read.
0x1 = Mask section has still data to be read out.
7-5
Reserved
R
0h
4
DataB
R/W
0h
Data B read observation
0x0 = Data B section has not to be read.
0x1 = Data B section has to be read to enable next IF3 update.
3
DataA
R/W
0h
Data A read observation
0x0 = Data A section has not to be read.
0x1 = Data A section has to be read to enable next IF3 update.
2
Ctrl
R/W
0h
Ctrl read observation
0x0 = Ctrl section has not to be read.
0x1 = Ctrl section has to be read to enable next IF3 update.
1
Arb
R/W
0h
Arbitration data read observation
0x0 = Arbitration data has not to be read.
0x1 = Arbitration data has to be read to enable next IF3 update.
0
Mask
R/W
0h
Mask data read observation
0x0 = Mask data has not to be read.
0x1 = Mask data has to be read to enable next IF3 update.
3978
Controller Area Network (CAN)
SPRUH73H – October 2011 – Revised April 2013
Copyright © 2011–2013, Texas Instruments Incorporated