This video gives a very basic understanding of what is axi. Figure 11 provides block diagrams for both master and slave axi chip2chip ip cores. The axi interface is the most widespread arm amba specification and provides an easy, generaluse connection to numerous devices within soc. Apr 12, 2014 this lesson talks about the other kind of axi interfaces. The xilinx axi reference guide guides users through the transition to axi4 3rd party ip and eda vendors everywhere have embraced the open axi4. This ip can be used in vivado ip integrator or can be instantiated in hdl in a vivado project. I need to write some data in microblaze internal memory through spi interface. Master protocol converter converts an axi3, axi4lite or ahblite master to an axi4 master. Also i need to readwrite ethernet mac registers through spi 4. Each axi bus interface consists of the following axi channels. Intended audience this specification is written to help hardware and software engineers who want to become familiar with the advanced microcontroller bus architecture amba and. Aug, 2019 for a bit axi master that issues a read command with an unaligned address starting at address 0x01with 4bytes to an 8bit axi slave, the starting address is.
For additional details about the axi4lite slave interface. The axi master interface provided by zynq in vivado sends both the write address and write data at the same time. The axi chip2chip master instance provides an axi4 slave interface that can be directly connected to an axi master or axi interconnect devices. Xilinx ds836 logicore ip axi master lite axi master lite. Pdf design and analysis of master module for amba axi4. The advanced extensible interface axi is useful for high bandwidth and low latency interconnects. Introduction to axi4lite advanced extensible interface advanced extensible interface 4 axi4 is a family of buses defined as part of the fourth generation of the arm advanced microcontroler bus architectrue amba standard. The arm amba 3 specification defines a set of four interface protocols that, between them, cover the onchip data traffic requirements from data intensive processing components requiring. Axi was first introduced with the third generation of amba, as axi3, in 1996. This interface is intended to be controlled by an axi or avalonmm master interface, which can write to and read from the memory block.
Product revision status the rnpn identifier indicates the revision status of the product described in this book, where. The xilinx zynq training videobook, will contain a series of videos through which we will make the audience familiar with the architecture of the zynq device. Abstractthis paper presents amba axi4, supports 16 masters and 16 slaves interfacing, with single master single slave talking to each other at a time. After that a simple matlab command line interface can be used to access the ip core generated by hdl coder. In order to use this feature, you require a hdl verifier license. Amba is a solution for the blocks to interface with each other. Axi bus interfaces the tzasc provides the following axi bus interfaces. The xilinx axi interconnect ip contai ns axi compliant master and slave. Arm has come up with its latest on chip bus transfer bus protocol, called amba axi. Parameters specify the axi id signal widths, the slave address width, and the data width. The amba advanced extensible interface bus, generally called axi protocol and it is proposed mainly to. Designing a custom axi master using bus functional models a guide to creating custom axi4 masters using the xilinx vivado tools and bus functional models this is an application note designed to help users who wish to design their own custom axi4 master ips in xilinx embedded processor systems.
The write issuing capability of each master interface the write interleave capability of each master interface. So far we were showing only axi memory mapped interfaces however for most of the dataflow applications axi stream interface is the main mechanism to connect processing units together. For detailed information about the axi interface, see the amba axi protocol specification. Plug the other end of this cable into the usb dongle, as shown below. Contribute to mmxsrupaxi4 interface development by creating an account on github. See axi extensions for more information about attribute encodings and bus ecc for more information about busecc. Feb 06, 2015 the xilinx zynq training videobook, will contain a series of videos through which we will make the audience familiar with the architecture of the zynq device. Amba 4 axi4, axi4lite axi4stream protocol assertions. Overview axi4lite instance can be set to slave mode and it will provide an axi4lite master interface. The master interface can run at the same frequency as the processor or at a lower synchronous frequency.
The axi interconnect core can be configured to have up to 32 sps and up to 8 mps. Typically an amba system designer would use pre designed bus masters and. Xilinx ds669 axi interface based kc705 embedded kit. Advanced extensible interface axi is a communication interface that is. Mu ltiple memorymapped axi masters and slaves can be connected together using axi infrastructure ip blocks. The xilinx axi interconnect ip and the newer axi smartconnect ip contain a configurable. The advanced extensible interface axi, part of the arm advanced microcontroller bus architecture 3 axi3 and 4 axi4 specifications, is a parallel highperformance, synchronous, highfrequency, multi master, multislave communication interface, mainly designed for onchip communication. Jan 10, 2019 axi4 and axi4lite interface definitions. Amba axi and ace protocol specification axi3, axi4, and axi4. The axi slave interface is a memorymapped interface to an onchip memory block. Plug one end of the digital interface cable into the comm port of the axi series, seen here. Xilinx has adopted the advanced extensible interface axi.
Apr 30, 2015 the xilinx zynq training videobook, will contain a series of videos through which we will make the audience familiar with the architecture of the zynq device. Also used for terms in descriptive lists, where appropriate. The axi4 master interface only makes certain types of accesses. The simplification comes with support for only a single master design and that removes need for any arbitration, retry, split transactions etc. Read this for a description of the basic axi protocol transaction requirements between a master and slave.
Cortexr5 technical reference manual axi master interface. You can use the simplified axi4 master protocol to map to axi4 master interfaces. Write address aw write data w write response b read address ar read data r. Axi4 defines a point to point, masterslave interface. The axi4 master interface can communicate between your design and the external memory controller ip by using the axi4 master protocol. A description of the basic axi protocol transaction requirements between a master and slave.
Accesses made by the axi4 master involve the its and lpis, which are always nonsecure. International journal of engineering research and general. This issue supersedes the previous r0p0 version of the specification. Creating custom axi master interfaces part 3 lesson 7. Overview axi4lite interface this module implements a 32bit axi4lite slave interface for accessing axi iic registers. The axi specifications describe an interface between a single axi master and axi slave, representing ip cores that exchange information with each other. To route ethernet traffic from arm processor to fpga and vice versa axi interface is used that gives high speed. This ip core has an axi slave interface for a master e. Axi to apb interface design using verilog iosr journal. The axi specifications describe an interface between a single axi master and a single axi slave, representing ip cores that exchange information with each other. We have a axi master on hps side, so to connect fpga, qsys will automatically connect adapters of axi slave and mm master that consumes most of the logic elements and reduces the speed of transfer. Axi4 datawidth converter connects one axi4 memorymapped interface to one axi4 interface. This book is for amba 4 axi4, axi4lite, and axi4stream protocol assertions. Therefore the axi4 master always makes nonsecure accesses.
From my understanding master is the one that initiates transactions. Nov 04, 2019 amba axi4 advanced extensible interface 4 is the fourth generation of the amba the axi4 specification for highperformance fpgabased systems and designs. Memory mapped axi masters and slaves can be connected together using a structure called an interconnect block. International journal of engineering research and general science volume 2, issue 4, junejuly, 2014. The dmac contains a single axi master interface that enables it to transfer data from a source axi slave to a destination axi slave. Hi, i am somewhat confused about axi masterslave definitions. Using jtag matlab as axi master to control hdl coder.
Github architechsilicadesigningacustomaximasterusing. Using jtag matlab as axi master to control the hdl coder ip core. Axi interface based kc705 embedded kit microblaze processor subsystem data sheet ds669 v2. Amba axi and ace protocol specification axi3, axi4, and axi4lite.
Creating custom axi master interfaces part 1 lesson 7. Abstractthis paper presents amba axi 4, supports 16 masters and 16 slaves interfacing, with single master single slave talking to each other at a time. An axi bus master has the most complex bus interface in an amba system. This is a point to point interconnect and overcomes the limitations of a shared bus protocol in.