AFMR2 (CAN) Register

Zynq UltraScale+ Devices Register Reference (UG1087)

Document ID
UG1087
Release Date
2024-03-13
Revision
1.10

AFMR2 (CAN) Register Description

Register NameAFMR2
Offset Address0x000000006C
Absolute Address 0x00FF06006C (CAN0)
0x00FF07006C (CAN1)
Width32
TyperwNormal read/write
Reset Value0x00000000
DescriptionAcceptance Filter 2 Mask.

AFMR2 (CAN) Register Bit-Field Summary

Field NameBitsTypeReset ValueDescription
AMIDH31:21rwNormal read/write0Standard Message ID Mask
These bits are used for masking the Identifier in a Standard Frame.
1: Indicates the corresponding bit in Acceptance Mask ID Register is used when comparing the incoming message identifier.
0: Indicates the corresponding bit in Acceptance Mask ID Register is not used when comparing the incoming message identifier.
AMSRR20rwNormal read/write0Substitute Remote Transmission Request Mask
This bit is used for masking the RTR bit in a Standard Frame.
1: Indicates the corresponding bit in Acceptance Mask ID Register is used when comparing the incoming message identifier.
0: Indicates the corresponding bit in Acceptance Mask ID Register is not used when comparing the incoming message identifier.
AMIDE19rwNormal read/write0Identifier Extension Mask
Used for masking the IDE bit in CAN frames.
1: Indicates the corresponding bit in Acceptance Mask ID Register is used when comparing the incoming message identifier.
0: Indicates the corresponding bit in Acceptance Mask ID Register is not used when comparing the incoming message identifier.
If AMIDE = 1 and the AIIDE bit in the corresponding Acceptance ID register is 0, this mask is applicable to only Standard frames.
If AMIDE = 1 and the AIIDE bit in the corresponding Acceptance ID register is 1, this mask is applicable to only extended frames.
If AMIDE = 0 this mask is applicable to Standard frame.
AMIDL18:1rwNormal read/write0Extended Message ID Mask
These bits are used for masking the Identifier in an Extended Frame.
1: Indicates the corresponding bit in Acceptance Mask ID Register is used when comparing the incoming message identifier.
0: Indicates the corresponding bit in Acceptance Mask ID Register is not used when comparing the incoming message identifier.
AMRTR 0rwNormal read/write0Remote Transmission Request Mask.
This bit is used for masking the RTR bit in an Extended Frame.
1: Indicates the corresponding bit in Acceptance Mask ID Register is used when comparing the incoming message identifier.
0: Indicates the corresponding bit in Acceptance Mask ID Register is not used when comparing the incoming message identifier.