Datasheet

Register 12: CAN IF1 Mask 1 (CANIF1MSK1), offset 0x028
Register 13: CAN IF2 Mask 1 (CANIF2MSK1), offset 0x088
The mask information provided in this register accompanies the data (CANIFnDAn), arbitration
information (CANIFnARBn), and control information (CANIFnMCTL) to the message object in the
message RAM. The mask is used with the ID bit in the CANIFnARBn register for acceptance
filtering. Additional mask information is contained in the CANIFnMSK2 register.
CAN IFn Mask 1 (CANIFnMSK1)
CAN0 base: 0x4004.0000
CAN1 base: 0x4004.1000
Offset 0x028
Type RW, reset 0x0000.FFFF
16171819202122232425262728293031
reserved
ROROROROROROROROROROROROROROROROType
0000000000000000Reset
0123456789101112131415
MSK
RWRWRWRWRWRWRWRWRWRWRWRWRWRWRWRWType
1111111111111111Reset
DescriptionResetTypeNameBit/Field
Software should not rely on the value of a reserved bit. To provide
compatibility with future products, the value of a reserved bit should be
preserved across a read-modify-write operation.
0x0000ROreserved31:16
Identifier Mask
When using a 29-bit identifier, these bits are used for bits [15:0] of the
ID. The MSK field in the CANIFnMSK2 register are used for bits [28:16]
of the ID. When using an 11-bit identifier, these bits are ignored.
DescriptionValue
The corresponding identifier field (ID) in the message
object cannot inhibit the match in acceptance filtering.
0
The corresponding identifier field (ID) is used for
acceptance filtering.
1
0xFFFFRWMSK15:0
1571December 13, 2013
Texas Instruments-Advance Information
Tiva
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TM4C129XNCZAD Microcontroller