Performance Monitor FPGA IP User Guide: Agilex™ 5 and Agilex™ 7 FPGAs

ID 817760
Date 4/01/2024
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5.2. AXI4 Interface Signals

For information on AXI4 signals for the FPGA memory interface IPs that you may connect with the PMON IP, refer to the following documentation: External Memory Interfaces Agilex™ 7 M-Series FPGA IP User Guide or External Memory Interfaces (EMIF) IP User Guide: Agilex™ 5 FPGAs and SoCs, as appropriate, or to the High Bandwidth Memory (HBM2E) Interface Agilex™ 7 M-Series FPGA IP User Guide.

Table 4.  Sink Write Address Channel Signals
Port Name Width Direction Description
sink_axi4_awregion 4 Input Region identifier. Permits a single physical interface on a subordinate to be used for multiple logical interfaces. Optional port on the interface controlled by Use AWREGION parameter.
sink_axi4_awready 1 Output Write Address Channel Ready. This signal indicates that the subordinate is ready to accept an address and associated control signals.
sink_axi4_awvalid 1 Input Write Address Channel Valid. This signal indicates that valid write address and control information are available.
sink_axi4_awid 1-18 Input Write address channel command ID tag. The width of this signal is determined by the Write ID Width parameter.
sink_axi_awaddr 1-64 Input

Write address. The write address gives the address of the first transfer in a write burst transaction. The width is tied to the value of the Write Address Width parameter.

sink_axi4_awlen 8 Input Burst Length. The burst length gives the exact number of transfers in an AXI burst.
sink_axi4_awsize 3 Input Burst Size. This signal indicates the number of AXI byte lanes containing valid data in each transfer of the burst.
sink_axi4_awburst 2 Input Burst type. The burst type and length determine how the address for each transfer within the burst is calculated.
sink_axi4_awqos 4 Input Quality-of-service identifier for this write command. This signal is optional on the interface, and determined by the Use AWQOS parameter.
sink_axi4_awlock 1 Input

Lock Type. Provides additional information about the atomic characteristics of the transfer.

sink_axi4_awuser 1-64 Input Optional User-defined signal in the write address channel. Width will match the AWUSER parameter.
sink_axi4_awport 3 Input Protection type. This signal indicates the privilege and security level of the transaction, and whether the transaction is a data access or an instruction access. This is controlled by the Use AWPROT parameter.
sink_axi4_awcache 4 Input Memory type. This signal indicates how transactions are required to progress through a system. This is an optional port controlled by the Use AWCACHE parameter.
Table 5.  Sink Write Data Channel Signals
Port Name Width Direction Description
sink_axi4_wready 1 Output Write Channel Ready. This signal indicates that the subordinate can accept the write data.
sink_axi4_wvalid 1 Input Write Channel Valid. This signal indicates that valid write data and strobes are available.
sink_axi4_wuser 1-64 Input User signal. Optional User-defined signal in the write data channel. Value is determined by the Write Data width parameter. If this value is 0 this port is not added to the interface.
sink_axi4_wdata 8, 16, 32, 64, 128, 256, 512, 1024 Input Write Data. The port width is equal to 2^N where N is a positive integer between 3 and 10, where N is equal to the floor of log2 of the Write Data Width parameter.
sink_axi4_wstrb 1, 2, 4, 8, 16, 32, 64, 128 Input Write Strobes (Byte Enables). The width of the wstrb port is equal to wdata port divided by 8.
sink_axi4_wlast 1 Input Write Last. This signal indicates the last transfer in a write burst.
Table 6.  Sink Write Response Channel Signals
Port Name Width Direction Description
sink_axi4_buser 1-64 Output

User signal. Optional User-defined signal in the write response channel. Optional signal on the interface controlled by Use BUSER and BUSER width Parameters.

sink_axi4_bready 1 Input Write Response Channel Ready. This signal indicates that the manager can accept a write response.
sink_axi4_bvalid 1 Output Write Response Channel Valid. This signal indicates that a valid write response is available.
sink_axi4_bid 1-64 Output Response ID Tag. This signal is the ID tag of the write response, and matches the ID tag of the command for which this is the response. Controlled by Write ID width parameter.
sink_axi4_bresp 2 Output Write Response. This signal indicates the result of the Write command.
Table 7.  Sink Read Address Channel Signals
Port Name Width Direction Description
sink_axi4_arregion 4 Input Region identifier. Permits a single physical interface on a subordinate to be used for multiple logical interfaces Optional signal exposed if Use ARREGION parameter is set.
sink_axi4_arready 1 Output Read Address Ready. This signal indicates that the subordinate is ready to accept an address and associated control signals.
sink_axi4_arvalid 1 Input Read Address Valid. This signal indicates that valid read address and control information are available.
sink_axi4_arid 1-18 Input Read address channel command ID tag. Controlled by the Read ID width parameter.
sink_axi4_araddr 1-64 Input Read Address. The read address gives the address of the first transfer in a read burst transaction. Controlled by Read Address Width Parameter and should have the same width range.
sink_axi4_arlen 8 Input Burst Length. The burst length gives the exact number of transfers in an AXI burst.
sink_axi4_arsize 3 Input Burst size.
sink_axi4_arburst 2 Input Burst type. The burst type and length determine how the address for each transfer within the burst is calculated.
sink_axi4_arqos 4 Input Quality-of-service identifier for this read command. This signal is optional and dependent on the Use ARQOS parameter.
sink_axi4_arlock 1 Input Lock type. This signal provides additional information about the atomic characteristics of the transfer. Optional signal on the interface exposed by Use ARLOCK.
sink_axi4_aruser 1-64 Input User signal. Optional User-defined signal in the read address channel. Optional signal controlled by Use ARUSER with width defined by the ARUSER WIDTH parameter.
sink_axi4_arport 3 Input Protection Type. This signal indicates the privilege and security level of the transaction, and whether the transaction is a data access or an instruction access. Optional signal on the interface set by the Use ARPROT parameter.
sink_axi4_arcache 4 Input Protection type. This signal indicates the privilege and security level of the transaction, and whether the transaction is a data access or an instruction access Optional signal controlled by Use ARCACHE.
Table 8.  Sink Read Data Channel Signals
Port Name Width Direction Description
sink_axi4_rresp 2 Output Read response. This signal indicates the status of the read transfer.
sink_axi4_rrready 1 Input Read Response Channel Ready. This signal indicates that the manager can accept the read data and response information.
sink_axi4_rvalid 1 Output Read Valid. This signal indicates that a valid read response is available.
sink_axi4_rid 1-18 Output Read Response Channel Ready. This signal indicates that the manager can accept the read data and response information. The width range value is determined by the read id width.
sink_axi4_rdata 8, 16, 32, 64, 128, 256, 512, 1024 Output Read Data. The port width is equal to 2^N where N is a positive integer between 3 and 10, where N is equal to the floor of log2 of the Read Data Width parameter.
sink_axi4_ruser 1-64 Output User signal. Optional User-defined signal in the read data channel. Value is determined by Read Data width parameter - Read data width. If this value is 0 this port is not added to the interface.
sink_axi4_rlast 1 Output Read Last. This signal indicates the last transfer in a read burst.
Table 9.  Source Write Address Channel Signals
Port Name Width Direction Description
src_axi4_awregion 4 Output Region identifier. Permits a single physical interface on a subordinate to be used for multiple logical interfaces. Optional port on the interface controlled by Use AWREGION parameter.
src_axi4_awready 1 Input Write Address Channel Ready. This signal indicates that the subordinate is ready to accept an address and associated control signals.
src_axi4_awvalid 1 Output Write Address Channel Valid. This signal indicates that valid write address and control information are available.
src_axi4_awid 1-18 Output Write address channel command ID tag. The width of this signal is determined by the Write ID Width parameter.
src_axi_awaddr 1-64 Output

Write address. The write address gives the address of the first transfer in a write burst transaction. The width is tied to the value of the Write Address Width parameter.

src_axi4_awlen 8 Output Burst Length. The burst length gives the exact number of transfers in an AXI burst.
src_axi4_awsize 3 Output Burst Size. This signal indicates the number of AXI byte lanes containing valid data in each transfer of the burst.
src_axi4_awburst 2 Output Burst type. The burst type and length determine how the address for each transfer within the burst is calculated.
src_axi4_awqos 4 Output Quality-of-service identifier for this write command. This signal is optional on the interface, and determined by the Use AWQOS parameter.
src_axi4_awlock 1 Output

Lock Type. Provides additional information about the atomic characteristics of the transfer.

src_axi4_awuser 1-64 Output Optional User-defined signal in the write address channel. Width will match the AWUSER parameter.
src_axi4_awport 3 Output Protection type. This signal indicates the privilege and security level of the transaction, and whether the transaction is a data access or an instruction access. This is controlled by the Use AWPROT parameter.
src_axi4_awcache 4 Output Memory type. This signal indicates how transactions are required to progress through a system. This is an optional port controlled by the Use AWCACHE parameter.
Table 10.  Source Write Data Channel Signals
Port Name Width Direction Description
src_axi4_wready 1 Input Write Channel Ready. This signal indicates that the subordinate can accept the write data.
src_axi4_wvalid 1 Output Write Channel Valid. This signal indicates that valid write data and strobes are available.
src_axi4_wuser 1-64 Output User signal. Optional User-defined signal in the write data channel. Value is determined by the Write Data width parameter. If this value is 0 this port is not added to the interface.
src_axi4_wdata 8, 16, 32, 64, 128, 256, 512, 1024 Output Write Data. The port width is equal to 2^N where N is a positive integer between 3 and 10, where N is equal to the floor of log2 of the Write Data Width parameter.
src_axi4_wstrb 1, 2, 4, 8, 16, 32, 64, 128 Output Write Strobes (Byte Enables). The width of the wstrb port is equal to wdata port divided by 8.
src_axi4_wlast 1 Output Write Last. This signal indicates the last transfer in a write burst.
Table 11.  Source Write Response Channel Signals
Port Name Width Direction Description
src_axi4_buser 1-64 Input

User signal. Optional User-defined signal in the write response channel. Optional signal on the interface controlled by Use BUSER and BUSER width Parameters.

src_axi4_bready 1 Output Write Response Channel Ready. This signal indicates that the manager can accept a write response.
src_axi4_bvalid 1 Input Write Response Channel Valid. This signal indicates that a valid write response is available.
src_axi4_bid 1-64 Input Response ID Tag. This signal is the ID tag of the write response, and matches the ID tag of the command for which this is the response. Controlled by Write ID width parameter.
src_axi4_bresp 2 Input Write Response. This signal indicates the result of the Write command.
Table 12.  Source Read Address Channel Signals
Port Name Width Direction Description
src_axi4_arregion 4 Output Region identifier. Permits a single physical interface on a subordinate to be used for multiple logical interfaces Optional signal exposed if Use ARREGION parameter is set.
src_axi4_arready 1 Input Read Address Ready. This signal indicates that the subordinate is ready to accept an address and associated control signals.
src_axi4_arvalid 1 Output Read Address Valid. This signal indicates that valid read address and control information are available.
src_axi4_arid 1-18 Output Read address channel command ID tag. Controlled by the Read ID width parameter.
src_axi4_araddr 1-64 Output Read Address. The read address gives the address of the first transfer in a read burst transaction. Controlled by Read Address Width Parameter and should have the same width range.
src_axi4_arlen 8 Output Burst Length. The burst length gives the exact number of transfers in an AXI burst.
src_axi4_arsize 3 Output Burst size.
src_axi4_arburst 2 Output Burst type. The burst type and length determine how the address for each transfer within the burst is calculated.
src_axi4_arqos 4 Output Quality-of-service identifier for this read command. This signal is optional and dependent on the Use ARQOS parameter.
src_axi4_arlock 1 Output Lock type. This signal provides additional information about the atomic characteristics of the transfer. Optional signal on the interface exposed by Use ARLOCK.
src_axi4_aruser 1-64 Output User signal. Optional User-defined signal in the read address channel. Optional signal controlled by Use ARUSER with width defined by the ARUSER WIDTH parameter.
src_axi4_arport 3 Output Protection Type. This signal indicates the privilege and security level of the transaction, and whether the transaction is a data access or an instruction access. Optional signal on the interface set by the Use ARPROT parameter.
src_axi4_arcache 4 Output Protection type. This signal indicates the privilege and security level of the transaction, and whether the transaction is a data access or an instruction access Optional signal controlled by Use ARCACHE.
Table 13.  Source Read Data Channel Signals
Port Name Width Direction Description
src_axi4_rresp 2 Input Read response. This signal indicates the status of the read transfer.
src_axi4_rrready 1 Output Read Response Channel Ready. This signal indicates that the manager can accept the read data and response information.
src_axi4_rvalid 1 Input Read Valid. This signal indicates that a valid read response is available.
src_axi4_rid 1-18 Input Read Response Channel Ready. This signal indicates that the manager can accept the read data and response information. The width range value is determined by the read id width.
src_axi4_rdata 8, 16, 32, 64, 128, 256, 512, 1024 Input Read Data. The port width is equal to 2^N where N is a positive integer between 3 and 10, where N is equal to the floor of log2 of the Read Data Width parameter.
src_axi4_ruser 1-64 Input User signal. Optional User-defined signal in the read data channel. Value is determined by Read Data width parameter - Read data width. If this value is 0 this port is not added to the interface.
src_axi4_rlast 1 Input Read Last. This signal indicates the last transfer in a read burst.