DS791 Datasheet, PDF (32/46 Pages) Xilinx, Inc – LogiCORE IP AXI Controller

LogiCORE IP AXI Controller Area Network (axi_can) (v1.03.a)
Table 37: Acceptance Filter Mask Bit Descriptions
Bit(s)
Name
Core
Default
Access Value
Description
Standard Message ID Mask: These bits are used for masking the
Identifier in a Standard Frame.
0–10 AMID [28..18] Read/Write
0
‘1’= Indicates that the corresponding bit in the Acceptance Mask ID
Register is used when comparing the incoming message identifier.
‘0’ = Indicates that the corresponding bit in the Acceptance Mask ID
Register is not used when comparing the incoming message identifier.
Substitute Remote Transmission Request Mask: This bit is used for
masking the RTR bit in a Standard Frame.
11
AMSRR Read/Write
0
‘1’= Indicates that the corresponding bit in the Acceptance Mask ID
Register is used when comparing the incoming message identifier.
‘0’ = Indicates that the corresponding bit in the Acceptance Mask ID
Register is not used when comparing the incoming message identifier.
Identifier Extension Mask: Used for masking the IDE bit in CAN frames.
‘1’= Indicates that the corresponding bit in the Acceptance Mask ID
Register is used when comparing the incoming message identifier.
‘0’ = Indicates that the corresponding bit in the Acceptance Mask ID
Register is not used when comparing the incoming message identifier.
12
AMIDE
Read/Write
0
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 both Standard and Extended
frames.
Extended Message ID Mask: These bits are used for masking the
Identifier in an Extended Frame.
13–30 AMID[17..0] Read/Write
0
‘1’= Indicates that the corresponding bit in the Acceptance Mask ID
Register is used when comparing the incoming message identifier.
‘0’ = Indicates that the corresponding bit in the Acceptance Mask ID
Register is not used when comparing the incoming message identifier.
Remote Transmission Request Mask: This bit is used for masking the
RTR bit in an Extended Frame.
31
AMRTR Read/Write
0
‘1’= Indicates that the corresponding bit in the Acceptance Mask ID
Register is used when comparing the incoming message identifier.
‘0’ = Indicates that the corresponding bit in the Acceptance Mask ID
Register is not used when comparing the incoming message identifier.
DS791 June 22, 2011
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Product Specification