Livt.Bus

src/axi4lite/IAxi4LiteMaster.lvt

namespace Livt.Bus.Axi4Lite

/**
 * AXI4-Lite signal contract with configurable byte addresses and data.
 * Directions are relative to the bus master.
 */
interface IAxi4LiteMaster<Address, Data, ByteEnable>
{
	/**
	 * Byte address presented on the write-address channel.
	 */
	awaddr: out Address

	/**
	 * AXI protection attributes for the write transaction.
	 */
	awprot: out Logic[3]

	/**
	 * Indicates that the write address is valid.
	 */
	awvalid: out logic

	/**
	 * Indicates that the target accepts the write address.
	 */
	awready: in logic

	/**
	 * Data presented on the write-data channel.
	 */
	wdata: out Data

	/**
	 * Enables the corresponding byte lanes of wdata.
	 */
	wstrb: out ByteEnable

	/**
	 * Indicates that write data and strobes are valid.
	 */
	wvalid: out logic

	/**
	 * Indicates that the target accepts the write data.
	 */
	wready: in logic

	/**
	 * Response code returned for the completed write.
	 */
	bresp: in Logic[2]

	/**
	 * Indicates that a write response is available.
	 */
	bvalid: in logic

	/**
	 * Indicates that the master accepts the write response.
	 */
	bready: out logic

	/**
	 * Byte address presented on the read-address channel.
	 */
	araddr: out Address

	/**
	 * AXI protection attributes for the read transaction.
	 */
	arprot: out Logic[3]

	/**
	 * Indicates that the read address is valid.
	 */
	arvalid: out logic

	/**
	 * Indicates that the target accepts the read address.
	 */
	arready: in logic

	/**
	 * Data returned on the read-data channel.
	 */
	rdata: in Data

	/**
	 * Response code returned with the read data.
	 */
	rresp: in Logic[2]

	/**
	 * Indicates that read data and its response are valid.
	 */
	rvalid: in logic

	/**
	 * Indicates that the master accepts the read data.
	 */
	rready: out logic
}