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DCAN Control Registers
1489
SPNU563A–March 2018
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Controller Area Network (DCAN) Module
27.17.29 IF3 Mask Register (DCAN IF3MSK)
Figure 27-70. IF3 Mask Register (DCAN IF3MSK) [offset = 144h]
31 30 29 28 16
MXtd MDir Rsvd Msk[28:16]
R-1 R-1 R-1 R-1FFFh
15 0
Msk[15:0]
R-FFFFh
LEGEND: R = Read; -n = value after reset
Table 27-30. IF3 Mask Register (DCAN IF3MSK) Field Descriptions
Bit Field Value Description
31 MXtd Mask extended identifier.
0 The extended identifier bit (IDE) has no effect on acceptance filtering.
1 The extended identifier bit (IDE) is used for acceptance filtering.
Note: When 11-bit ("standard") identifiers are used for a message object, the identifiers of received
Data Frames are written into bits ID[28:18]. For acceptance filtering, only these bits, together with
mask bits Msk[28:18], are considered.
30 MDir Mask message direction.
0 The message direction bit (Dir) has no effect on acceptance filtering.
1 The message direction bit (Dir) is used for acceptance filtering.
29 Reserved 0 These bits are always read as 0. Writes have no effect.
28-0 Msk[n] Identifier mask.
0 The corresponding bit in the identifier of the message object is not used for acceptance filtering
(don't care).
1 The corresponding bit in the identifier of the message object is used for acceptance filtering.
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