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1. About the High Bandwidth Memory (HBM2E) Interface Intel Agilex® 7 FPGA IP User Guide
2. Introduction to High Bandwidth Memory
3. Intel Agilex® 7 M-Series HBM2E Architecture
4. Creating and Parameterizing the High Bandwidth Memory (HBM2E) Interface Intel® FPGA IP
5. High Bandwidth Memory (HBM2E) Interface Intel® FPGA IP Interface
6. High Bandwidth Memory (HBM2E) Interface Intel FPGA IP Performance
7. Debugging the High Bandwidth Memory (HBM2E) Interface Intel® FPGA IP
8. Document Revision History for High Bandwidth Memory (HBM2E) Interface Intel FPGA IP User Guide
A. High Bandwidth Memory (HBM2E) Interface Intel® FPGA IP Intel® Quartus® Prime Software Flow
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5.2.5. AXI4-Lite Interface
The AXI4-Lite interface allows access to the high-bandwidth memory controller's control and status registers. The AXI4-Lite interface is intended primarily for use in relatively low bandwidth sideband operations.
Port Name | Width | Direction | Description |
---|---|---|---|
sb_awaddr | 27 | Input | Write Address. Target address of the AXI4-Lite write command. |
sb_awvalid | 1 | Input | Write Address Valid. This signal indicates that valid write address information is available. |
sb_awready | 1 | Output | Write Address Channel Ready. This signal indicates that the slave is ready to accept a write command. |
sb_awprot | 3 | Input | Protection Type. [Reserved for Future Use]. This signal indicates the privilege and security level of the transaction, and whether the transaction is a data access or an instruction access. |
Port Name | Width | Direction | Description |
---|---|---|---|
sb_wdata | 32 | Input | Write Data. |
sb_wstrb | 4 | Input | Write Strobes (Byte Enables). This signal indicates which byte lanes (for sb_wdata) hold valid data. There is one write strobe bit for each eight bits of the write data bus. |
sb_wvalid | 1 | Input | Write Valid. This signal indicates that valid write data and strobes are available. |
sb_wready | 1 | Output | Write Ready. This signal indicates that the slave (HBM controller) can accept the write data. |
Port Name | Width | Direction | Description | ||||||
---|---|---|---|---|---|---|---|---|---|
sb_bresp | 2 | Output | Write Response. This signal indicates the result of the most recent write command.
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sb_bvalid | 1 | Output | Write Response Valid. This signal indicates that a valid write response is available. | ||||||
sb_bready | 1 | Input | Response Ready. This signal indicates that the master can accept a write response. |
Port Name | Width | Direction | Description |
---|---|---|---|
sb_araddr | 27 | Input | Read Address. Target address of the AXI4-Lite read command. |
sb_arvalid | 1 | Input | Read Address Valid. This signal indicates that a valid read address is available. |
sb_arready | 1 | Output | Read Address Ready. This signal indicates that the slave is ready to accept a read command. |
sb_arprot | 3 | Input | Protection Type. [Reserved for Future Use]. This signal indicates the privilege and security level of the transaction, and whether the transaction is a data access or an instruction access. |
Port Name | Width | Direction | Description | ||||||
---|---|---|---|---|---|---|---|---|---|
sb_rdata | 32 | Output | Read Data. | ||||||
sb_rresp | 2 | Output | Read Response. This signal indicates the result of the most recent read command.
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sb_rvalid | 1 | Output | Read Valid. This signal indicates that a valid read response is available. | ||||||
sb_rready | 1 | Input | Read Ready. This signal indicates that the master can accept the read data and response information. |