4.3.1. Host AXI-4 Memory Map Manager Interface
This is the manager interface access host memory for descriptors and data. Supporting AXI-4 interface.
Clock Domain: host_clk
Reset: host_aresetn
| Signal Name | Direction | Description |
|---|---|---|
| Write Address Channel | ||
| host_awvalid | OUT | Indicates that the write address channel signals are valid |
| host_awready | IN | Indicates that a transfer on the write address channel can be accepted |
| host_awaddr [HOST_AWD-1:0] |
OUT | The address of the first transfer in a write transaction The default value of HOST_AWD = 64 |
| host_awlen [HOST_LWD-1:0] |
OUT | Length, the exact number of data transfers in a write transaction The default value of HOST_LWD = 8 |
| host_awburst[1:0] 2 |
OUT | The burst type of data transfers in a write transaction. |
| host_awsize [2:0] |
OUT | The maximum number of bytes to transfer in each data transfer, or beat, in a burst |
| host_awprot[2:0] | OUT | Protection attributes of a write transaction: privilege, security level, and access type |
| host_awid[HOST_IDWD-1:0] | OUT | Identification tag for a write transaction The default value of HOST_IDWD = 5 |
| host_awcache[3:0] | OUT | Indicates how a write transaction is required to progress through a system |
| Write Data Channel | ||
| host_wvalid | OUT | Indicates that the write data channel signals are valid |
| host_wlast | OUT | Indicates whether this is the last data transfer in a write transaction |
| host_wready | IN | Indicates that a transfer on the write data channel can be accepted |
| host_wdata [HOST_DWD -1:0] |
OUT | Write Data The default value of HOST_DWD = 256 |
| host_wstrb [HOST_DWD /8-1:0] |
OUT | Write strobes, indicate which byte lanes hold valid data |
| Write Response Channel | ||
| host_bvalid | IN | Indicates that the write response channel signals are valid |
| host_bready | OUT | Indicates that a transfer on the write response channel can be accepted |
| host_bresp[1:0] | IN | Write response, indicates the status of a write transaction |
| host_bid[HOST_IDWD-1:0] | IN | Identification tag for a write response The default value of HOST_IDWD = 5 |
| Read Address Channel | ||
| host_arvalid | OUT | Indicates that the read address channel signals are valid |
| host_arready | IN | Indicates that a transfer on the read address channel can be accepted |
| host_araddr [HOST_AWD-1:0] |
OUT | The address of the first transfer in a read transaction The default value of HOST_AWD = 64 |
| host_arlen [HOST_LWD-1:0] |
OUT | Length, the exact number of data transfers in a read transaction The default value of HOST_LWD = 8 |
| host_arburst[1:0]2 |
OUT | The burst type of data transfers in a read transaction. |
| host_arsize [2:0] |
OUT | The maximum number of bytes to transfer in each data transfer, or beat, in a burst |
| host_arprot[2:0] | OUT | Protection attributes of a read transaction: privilege, security level, and access type |
| host_arid[HOST_IDWD-1:0] | OUT | Identification tag for a read transaction The default value of HOST_IDWD = 5 |
| host_arcache[3:0] | OUT | Indicates how a read transaction is required to progress though a system |
| Read Data Channel | ||
| host_rvalid | IN | Indicates that the read data channel signals are valid |
| host_rlast | IN | Indicates whether this is the last data transfer in a read transaction |
| host_rready | OUT | Indicates that a transfer on the read data channel can be accepted |
| host_rdata [HOST_DWD-1:0] |
IN | Read data The default value of HOST_DWD = 256 |
| host_rresp [1:0] |
IN | Read response, indicates the status of a read transfer |
| host_rid[HOST_IDWD-1:0] | IN | Identification tag for a read response The default value of HOST_IDWD = 5 |