NUC970 Technical Reference Manual
Publication Release Date: Dec. 15, 2015
- 816 -
Revision V1.30
NUC97
0
T
E
CHNIC
A
L
RE
F
E
RE
N
CE
MA
NUA
L
IFn Mask 2 Register (CAN_IFn_MASK2)
Register
Offset
R/W
Description
Reset Value
CAN_IFn_MASK2
0x2C/0x8C R/W
IFn Mask 2 Registers
0x0000_FFFF
31
30
29
28
27
26
25
24
Reserved
23
22
21
20
19
18
17
16
Reserved
15
14
13
12
11
10
9
8
MXtd
MDir
Reserved
Msk[28:24]
7
6
5
4
3
2
1
0
Msk[23:16]
Bits
Description
[31:16]
Reserved
Reserved.
[15]
MXtd
Mask Extended Identifier
0 = The extended identifier bit (IDE) has no effect on the 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 ID28 to ID18. For acceptance filtering, only
these bits together with mask bits Msk28 to Msk18 are considered.
[14]
MDir
Mask Message Direction
0 = The message direction bit (Dir) has no effect on the acceptance filtering.
1 = The message direction bit (Dir) is used for acceptance filtering.
[13]
Reserved
Reserved.
[12:0]
Msk[28:16]
Identifier Mask 28-16
0 = The corresponding bit in the identifier of the message object cannot inhibit the match in
the acceptance filtering.
1 = The corresponding identifier bit is used for acceptance filtering.