axi::axi4< Cfg > Class Template Reference

The base axi4 class parameterized according a valid config. More...

#include <axi4.h>

Classes
struct	AddrPayload
	A struct composed of the signals associated with AXI read and write requests. More...
class	read
	The AXI read class. More...
struct	ReadPayload
	A struct composed of the signals associated with an AXI read response. More...
struct	WRespPayload
	A struct composed of the signals associated with an AXI write response. More...
class	write
	The AXI write class. More...
struct	WritePayload
	A struct composed of the signals associated with AXI write data. More...

Public Types
enum	{   DATA_WIDTH = Cfg::dataWidth, ADDR_WIDTH = Cfg::addrWidth, ID_WIDTH = Cfg::idWidth, BID_WIDTH = (Cfg::useWriteResponses == 0 ? 0 : Cfg::idWidth),   ALEN_WIDTH, ASIZE_WIDTH = (Cfg::useVariableBeatSize != 0 ? 3 : 0), LAST_WIDTH = (Cfg::useLast != 0 ? 1 : 0), CACHE_WIDTH = (Cfg::useCache != 0 ? Enc::ARCACHE::_WIDTH : 0),   BURST_WIDTH, WSTRB_WIDTH = (Cfg::useWriteStrobes != 0 ? (DATA_WIDTH >> 3) : 0), RESP_WIDTH = Enc::XRESP::_WIDTH, AUSER_WIDTH = Cfg::aUserWidth,   WUSER_WIDTH = Cfg::wUserWidth, BUSER_WIDTH = (Cfg::useWriteResponses == 0 ? 0 : Cfg::bUserWidth), RUSER_WIDTH = Cfg::rUserWidth }
typedef AXI4_Encoding	Enc
typedef nvhls::UIntOrEmpty< ID_WIDTH >::T	Id
typedef nvhls::UIntOrEmpty< BID_WIDTH >::T	BId
typedef nvhls::UIntOrEmpty< ALEN_WIDTH >::T	BeatNum
typedef nvhls::UIntOrEmpty< ASIZE_WIDTH >::T	BeatSize
typedef nvhls::UIntOrEmpty< LAST_WIDTH >::T	Last
typedef nvhls::UIntOrEmpty< WSTRB_WIDTH >::T	Wstrb
typedef nvhls::UIntOrEmpty< CACHE_WIDTH >::T	Cache
typedef nvhls::UIntOrEmpty< BURST_WIDTH >::T	Burst
typedef nvhls::UIntOrEmpty< AUSER_WIDTH >::T	AUser
typedef nvhls::UIntOrEmpty< WUSER_WIDTH >::T	WUser
typedef nvhls::UIntOrEmpty< BUSER_WIDTH >::T	BUser
typedef nvhls::UIntOrEmpty< RUSER_WIDTH >::T	RUser

Public Member Functions
typedef	NVUINTW (ADDR_WIDTH) Addr
typedef	NVUINTW (DATA_WIDTH) Data
typedef	NVUINTW (RESP_WIDTH) Resp

Detailed Description

template<typename Cfg>
class axi::axi4< Cfg >

The base axi4 class parameterized according a valid config.

Template Parameters

Cfg	A valid AXI config.

Overview

axi4 defines the AXI base class. Based on the provided Cfg, the bitwidths of the various fields of the AXI specification are defined, and classes and convenience functions can be used to instantiate AXI Connections, wire them together, and use them to implement the AXI protocol.

• Each AXI signal is defined as a UIntOrEmpty of an appropriate width, allowing for the presence of 0-width fields when they can be elided entirely.
• If useWriteResponses = 0, the B channel is not removed entirely (for implementation convenience), but is reduced to minimum width.
• All AW and AR fields are identical, and are combined into a common AddrPayload type.

Definition at line 58 of file axi4.h.

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The documentation for this class was generated from the following file:

• axi4.h