See section A5. But it's not the only possible source of interleaved write data. g. Handles bursts and presents a simplified internal memory interface. In the last article, we introduced AXI, the Advanced Extensible Interface, part of the ARM AMBA specification for SoC design. Interleaved DMA: Interleaved DMA are those DMA that read from one memory address and write from another memory address. The following 5×5 torus is 3-interleaved with 6 colors. The AXI4 master read channel can receive transactions in any order, and data can be completely interleaved. Initialization of the AXI Slave VIP Memory Model write data via a backdoor memory write. You can initiate an AXI write transaction by issuing a valid Write Address signal on the AXI Write Address Bus, AWADDR. find likely ancestor, descendant, or conflicting patches for. the interconnect and the AXI slave gets connected to the AXI4 Master interface port of the interconnect. 0 03 March 2010 C Non-Confidential First release of AXI specification v2. The build phase of test in turn called the environment and then environment calls the agent and so on. Multiple Intellectual Property (IPs) are integrated in a single SoC and these IPs communicate with the help of various bus protocols. axi_to_mem_interleaved and axi_to_mem_split properly instantiates a demultiplexer now. I'm studying about AMBA 3. 5. value on the address channel. rototyping. It has been described as shown below. . write(0x0000, b'test') data = await axi_master. For example, a slave with a write data interleaving depth of two that has four different addresses, all with different AWID values, pending can accept data for either of the first. AXI Upsizer. >Is it used only when we have multi-master cases? No. The System-On-Chip (SoC) designs are becoming more complex nowadays. g. g. AXI Reference Guide UG761 (v13. The System-On-Chip (SoC) designs are becoming more complex nowadays. Linux ZynqMP PS-PCIe Root Port Driver. As a result, AXI4 removed support for write data interleaving, which then removed the need for the WID signal (it was only needed to work out which outstanding write transaction the data related to). 19 March 2004 B Non-Confidential First release of AXI specification v1. In AXI4 we don't have write data interleaving, so if your master is issuing multiple write transactions using different. One major up-dation seen in AXI is that, it includes information on the use of default signaling and discusses the interoperability of components which can’t be. Appendix A Comparison with the AXI4 Write Data Channel Read this for a description of the key differences between the AXI4-Stream interface and the AXI4 write data channel. AXI3 master devices must be configured as if connected to a slave with a Write interleaving depth of one. 0 Controller with AXI version for ASIC and FPGA implementations with support for the AMBA AXI protocol specification for CXL. AXI RAM read/write interface with parametrizable data and address interface widths. Supports 64, 128, 256, and 512 bit datapaths. • AXI4-Lite does not support data interleaving, the burst length is defined as 1 • AXI4-Lite supports multiple. 0 AXI. you told me that the interleaving is a concept only for write. g. No. All five transaction channels use the same VALID/READY handshake process i want to do random write transcation, and here is the waveform, does this waveform meets AXI spec. The AMBA AXI protocol supports high-performance, high-frequency system designs. 1. The AMBA 4 specifications introduced more interface protocols on top of the AMBA 3 specifications, including ACE, the AXI Coherency Extensions. Linux Soft PCIe Driver. Introduction. •. request regardless if the request was a write or a read. MYSELF have seen plenty TYPE providers e. can simplify the logic used, by not needing to do checks for 4K boundaries on the AXI-Write. [AXI spec - Chapter 8. . 1. In this case, the arbiter seems like compulsory for all the readback data coming from different slave & the arbiter to determine which readback data that has higher priority can or through round-robin way to return to the master. • AXI Protocol Converter connects one AXI4, AXI3 or AXI4-Lite master to one AXI slave of a different AXI memory-mapped protocol. AXI uses well defined master and slave. Output (MI) SIZE = log2 (mi. By disabling cookies, some features of the site will not workI am using L2CC for level 2 cache controller, I configured to two master port. wstrb { Write strobes, his signal indicates which byte lanes to update in memory3 While AXI4 props burst lengths of up the 256 beats. >Is it used only when we have multi-master cases? No. Chapter 4 Transfer Interleaving and Ordering Read this for a description of the stream interleaving and ordering restrictions. 简单而言，outsatanding是对地址而言，一次burst还没结束，就可以发送下一相地址。. The address channel is controlled by AWREADY and the data channel is controlled by WREADY. If you are not happy with the use of these cookies, please review our Cookie Policy to learn how they can be disabled. There are 3 types of AXI4-Interfaces (AMBA 4. Typically, the read-modify-write operation can be achieved with a single atomic operation. Pass condition: If trace_tag is set to. — The read and write acceptance capability of each slave interfaceAXI Interconnect Core Features. Write transaction ID on the GIF is verified for write ID consistency between the AXI and the GIF without write interleaving or out-of-order write responses. I have seen lot IP retailers e. The DMA controller registers have three registers as follows. The write data interleaving depth is the number of addresses for which a slave can accept interleaved data. Recently, I read "AMBA AXI Protocol. Synopsys supporting burst lengths up to 256 beats to AXI3 I have also seen many IPS providers e. From the AMBA AXI4-Stream specification , the TDEST signal can be used to route AXI4 data stream. Performance constraint on the minimum expected bandwidth for write transfers in a given time interval. rtl/axi_axil_adapter_wr. The LogiCORE™ IP AXI Interconnect core (axi_interconnect) connects one or more AXI memory-mapped master devices to one or more memory-mapped slave devices. The AXI VIP can be used to verify connectivity and basic functionality of AXI masters and AXI slaves with the custom RTL design flow. The interval is specified in perf_recording_interval. in axi4 only read transaction can be completed out of order while in axi3 read and write instruction can be completed out of order. AXI Protocol The AXI protocol: Permits the address information to be transferred ahead of actual transfer. The problem I am facing is in AXI interface of MIG where 4-bit ID signal is present for all the transactiPlease answer. axi_throttle: Add a module that limits the maximum number of outstanding transfers sent to the downstream logic. Enables sharing the PCIe AXI DMA module between multiple request sources, interleaving requests and distributing responses. AXI BRAM. By disabling cookies, some features of the site will not workAXI Write Address. See the tests directory, verilog-axi, and verilog-axis for complete testbenches using these modules. ) IF a transaction is bufferable It is acceptable for a bridge or system level cache to provide write response. This document gives explanation about Cortex-A9 AXI masters. Write Data Can Appear at an AXI Interface before the Write Address, which can Cause a Deadlock Condition Description: Workaround: Status. This site uses cookies to store information on your computer. In AXI4 we don't have write data interleaving, so if your master is issuing multiple write transactions using different IDs, there is a strict ordering requirement that all the WDATA transfers for the first issued AW channel transfer must be completed before any of the WDATA transfers for the second issued AW channel transfer. Where interleaving is supported, the WID and RID signals will indicate which of the interleaved transactions the data transfer relates to. A locked transaction is changed to a non-locked transaction and propagated by the MI. If two or four instances of the MC are selected, they are configured to form a single interleaved memory. If you are not happy with the use of these cookies, please. I'm a graduate student living in south Korea. WID is needed to support write data interleaving described in AXI3, but this isn't supported in AXI4, so no requirement to have a WID signal. 3. AXI3 WRITE DATA INTERLEAVING With write data interleaving, a slave interface can accept interleaved write data with different AWID values. ME have seen many IP providers e. 1 in the current AXI protocol spec for details of this. 读交织 ：简单来说，读交织是out of order乱序的其中一种实现形式。. Supports FIXED and INCR burst types as well as narrow bursts. By disabling cookies, some features of the site will. However, the word of the data interleaving is not included in the AXI specifications but the write interleaving only exists. So for the R channel we already have a slave-master flow direction, with accompanying handshake signals, to easily support passing responses for each read. However, since L2CC masterFree essays, homework help, flashcards, research papers, book reports, term papers, history, science, politicsStage 1: Read Calibration Part One—DQS Enable Calibration and DQ/DQS Centering 1. AXI4 supports QoS, AXI3 does DOES suppor QoS. Write interleave depth is a characteristic of the slave or the slave interface, rather than the master. Slave write transactions support incrementing address bursts, fixed bursts, wrapping bursts, and narrow type transfers. This paper introduces the concept of multicluster interleaving (MCI), a. Thanks a lot!!! Transaction ID信号，使AXI4协议可以完成自身的乱序机制，从AXI3到AXI4的进化中，write interleaving被取消了，大的方向下，AXI遵循着相同ID顺序执行，不同ID乱序执行的原则，同时从主设备-互联网络-从设备的连接中，Transaction ID可能会出现额外的位扩展. can simplify the logic used, by not needing to do checks for 4K boundaries on the AXI-Write. This document gives explanation about Cortex-A9 AXI masters. In the past when writing to DDR ram that is connected to the PS, I have used Xilinx AXI DMA to DMA data into the PS. 2. 4) is the case of the interleave but AXI4 does not permit the write interleaving. Versal Adaptive SoC CCIX-PCIe Module (CPM) Root port Linux driver. g. AXI的读写事务可以通过ID来进行区分，从而引入顺序的概念。. * Supports write response reordering, Read data. The integrated memory controllers (MCs) are integrated into the AXI NoC core. The. sv","contentType":"file"},{"name":"axi. Most AXI3 masters do not support write interleaving. This site uses cookies to store information on your computer. In the past when writing to DDR ram that is connected to the PS, I have used Xilinx AXI DMA to DMA data into the PS. Requested operations will be split and aligned according. 17. By continuing to use our site, you consent to our cookies. An Efficient AXI Read and Write Channel for Memory Interface in System-on-Chip Abhinav Tiwari M. In a synchronous system, the maximum bandwidth is limited by the product of the clock speed and the width of the data bus. g. 7. AXI has the ability to issue multiple outstanding addresses and out-oforder transaction completion, but AXI has the ability of removal of locked transactions and write interleaving. recently, i read "AMBA® AXI Protocol. The RDMA, has 1024 Channels/Transaction ID’s (TID) and supports interleaving and out of order. 1 LogiCORE IP Product Guide Vivado Design Suite May 17, 2022. You cannot interleave transactions using the same ID, so the data transfer IDs are the link to the preceding address transfer IDs, telling the destination of the transfer which transaction they are for. In practice, removing write interleaving from this part of the AMBA standard makes certain aspects of the AXI protocol easier to handle. The integrated memory controllers (MCs) are integrated into the AXI NoC core. it seems that my waveform does not meet the axi spec, because the awready can not always be 1 in rtl. The key features of the AXI protocol are: • separate address/control and data phases. 0 03 June 2011 D-2c Non-Confidential Public beta draft of AMBA AXI and ACE Protocol Specification 28 October 2011 D Non-Confidential First release of AMBA AXI and ACE Protocol SpecificationAXI4 Cross-bar Interconnect ¶. This value, measured in clock cycles, is the value used to determine if aI change the hardware in EDK and then run the memory writing code in SDK and check if the data I write is being written to memory with delay or not. The master keeps the VALID signal low until the write data is available. AXI的读写事务可以通过ID来进行区分，从而引入顺序的概念。. The various AXI channels operate mostly independently of each other, so there is no requirement that a master wait for the B channel response to one write transaction before starting a new AW or W channel transfer. Verification IP (VIP) supports all four types of atomic transactions:. Figure 1. The address widths can go upto 64-bits. The problem was that there was no awready on AXI interface at the VIP. awaddr { Write address, the write address bus gives the address of the transaction. 1) March 7, 2011. configured as AXI3 write data with interleaving (with write interleaving depth >1). Synopsys NO supporting write interlock in AXI3. It addresses high-bandwidth, high-clock-frequency system designs and includes features that make it suitable for high-speed interconnect, typical in mobile and consumer applications. In the last article, we introduced AXI, the Advanced Extensible Interface, part of the ARM AMBA specification for SoC design. The AXI protocol provides the dedicated channels for memory read and write operations. 1) I would like to know how read and write address requests issued to slave are associated with read or write data. DUT has both Tx and Rx instansiated inside which means user can repalce any of these two with user specific Tx or Rx if they are compatible. AXI Bus. dfblob:120001dbc4d dfblob:c39f478f34a. 4. that allows processes to write small, latencycritical messages to arbitrary in a global address space. Closed drom opened this issue Aug 24, 2019 · 6 comments Closed Add AXI properties #4. The AXI protocol is based on a point to point interconnect to avoid bus sharing and therefore allow higher bandwidth and lower latency. Memory Interleaving is less or More an Abstraction technique. Let’s call the two queues ref_q for Reference transactions and dut_q for DUT transactions. A locked transaction is changed to a non-locked transaction and propagated by the MI. You will see that wvalid is indeed changing while tready is low which is against the AXI specification. Good Morning, I am working on a ZU6EG Zynq ultrascale+ project for my company with a team of engineers. The DDRMC is a dual channel design with fine interleaving disabled. svt_axi_checker:: trace_tag_validity_check. transactions and write interleaving. g. When. 如图所示，slave在返回了一个RID为ID2. The colorsIntroduction The AXI Quad SPI connects the AXI4 interface to those SPI slave devices that support Standard, Dual or Quad SPI protocol instruction set. I have and watch many IP providers e. 4) January 18, 2012 Xilinx is providing this product documentation, hereinafter “Information,”AXI总线 详细整理 AXI总线概述 时钟与复位 AXI的5个通道 写入数据的流程 读取数据的流程 握手依赖关系 突发传输机制 读/写响应结构 Outstanding、Out-of-Order、Interleaving AXI4、AXI4-Lite、AXI4-Stream AXI4仿真实. What is the difference between burst and beat? A ‘beat’ is an individual data transfer within an AXI burst. Checks all snoop transactions are ordered. Appendix B Revisions 1] AXI is a multi-channel bus with 5 independent channels like Write address channel, Read address channel, Write data channel, Read data channel, Write response channel (Read Response is sent. 843819: Memory Locations May be Accessed Speculatively Due to Instruction Fetches When. scala . Requested operations will be split and aligned according. 2). "For a slave that supports write data interleaving, the order that it receives the first data item of each Write-Write-Write-Write or Write-Read-Write-Read, etc. +1 Colin Campbell over 4 years ago. although me have twos questions info AXI according° Write interleaving. v. As per the standards, 4KB is the minm. 是否支持乱序只与slave有关，与master无关。. I think there would not be big advantages. In AXI Interconnect IP configuration, I changed the Acceptance parameter to 5 from 1 (All sides : Master Read/Write, Slave Read/Write). 4. This book is for AMBA AXI Protocol Specification. Each of the five independent channels consists of a set of information signals and uses a two-way VALID and READY handshake mechanism. Low-power Interface support; Atomic access support with normal access,exclusive access and locked access; AXI4 supportsvt_axi_system_transaction:: master_xact. Before the next write transaction the slave assert the BVALID and master should accept the BVALID by asserting the BREADY for the previous transaction. Sector interleave size of interleaving in axi ip, link copied to apb bus at the read. 0 AXI out-of order - WID & RID - Architectures and Processors forum - Support forums - Arm Community - AXI terminology - Multiple outstanding , out of order , interleavingSi and then interconnect to data interleaving in axi protocol violation to generate the palladium xp runs in?. but i have two questions about hi. 14 AXI Reference Guide UG761 (v13. All rights reserved. 1A is a view illustrating a process of interleaving the data transmitted by plural AXI masters and transmitting the interleaved data to an AXI slave 30 having interleaving acceptance capability of “2”. DataMover AXI4 Write. AXI BRAM. However, a master interface can interleave write data with different WID values if the slave interface has a write data interleaving depth greater than one. 5 Write data interleaving] "The order in which a slave receives the first data item of each transaction must be the same as the order in which it receives the addresses for the transactions. mulation and. Hold Off Refresh for Read/Write: This allows the controller to delay a refresh to permit operations to complete first. AXI3 supports write interleaving. write(0x0000, b'test') data = await axi_master. axi protocol - Download as a PDF or viewer online for free. Documentation and usage examples. . AMBA AXI Advanced eXtensible Interface AMBA AXI PROTOCOL CONTENTS Key Features Objectives Channel Architecture Basic Transaction Signal Descriptions Addressing Options Channel Handshake AMBA AXI PROTOCOL Key Features • Separate address/ control and data phases • Separate read and write channels to enable low-cost Direct. AXI_ERRM_WDATA_ORDER The order in which addresses and the first write data Write data interleaving on Page 8-6 item are produced must match. 2. For each of the AXI channels the flow of information is one direction, so for the AW, AR and W channels the flow is master to slave, and for R and B the flow is slave to master. AXI4 supports QoS, AXI3 does NOT suppor QoS. Word count register – It contains the. 42 AXI Reference Guide UG761 (v14. a. The WSTRB [n:0] signals when HIGH, specify the byte lanes of the data bus that contain valid information. Of course it can have a larger addressing space, but again it has to be in the multiples of 4KB. The design and configurability of the NIC-400 allows the user to implement the highest performance interconnects for their set of master and slave requirements while minimizing area and power. AXI3: Write data interleaving (for different IDs) is supported. By interleaving the two write data streams, the interconnect can improve system performance. So software that reads consecutive memory will need to wait for a memory transfer to. FIG. 6,828. Arm* Cortex*-A53 MPCore* and CoreSight* Errata x. In practice, removing write interleaving from this part of the AMBA standard makes certain aspects of the AXI protocol easier to handle. One master port will interface with AXI slave interface. signaling. I have a few fundamental questions related to AXI-4 and I would appreciate if anyone can answer these. Write Data Interleaving in AXI. AXI4 carries QoS, AXI3 does NOT suppor QoS. Features of AXI 5 Channels (Write address, Write data, Write Response, Read data/response, Read address ) No strict timing relationship between address and data signal On chip, Point to Point Communication protocol Multiple Outstanding(Multiple request) Burst based transactions with only start address issued Aligned and non-aligned address support Out of order Data interleaving Atomicity. 0 03 March 2010 C Non-Confidential First release of AXI specification v2. The user logic should provide a valid write address in the AWADDR bus and assert the AWVALID to indicate that the address is valid. If you are not happy with the use of these cookies, please review our Cookie Policy to learn how they can be disabled. As per the standards, 4KB is the minm. AMBA 4. Supports AXI Master, AXI Slave, AXI Interconnect; Supports all ARM AMBA AXI 3. Configurable write and read interleave depth. This is to simplify the address decoding in the interconnect. AXI4 supports QoS, AXI3 do NOT suppor QoS. Video Framebuffer Write / Read IP cores are designed for video applications requiring frame buffers and is designed for high-bandwidth access between the AXI4-Stream video interface and the AXI4-interface. The objectives of the latest generation AMBA interface are to: be suitable for high-bandwidth and low-latency designs. I'm a graduation student lives in south Korea. It is a Technique that divides memory into a number of modules such that Successive words in the address space are placed in the Different modules. Yes to your first question. This site uses cookies to store information on your computer. This DUT consisted of default AXI-stream signals to communicate to and fro. * Multi-threaded traffic (masters issuing multiple ID threads) is supported across the interconnect topology regardless of internal. Though it’s a bit different from Abstraction. But it's not the only possible source of interleaved write data. When 256 bits data is chosen in the GUI, this bus should be left undriven. pdf". 8. 0 03 June 2011 D-2c Non-Confidential Public beta draft of AMBA AXI and ACE Protocol Specification 28 October 2011 D Non-Confidential First release of AMBA AXI and ACE Protocol Specificationemploying the Advanced extensible Interface (AXI) proto col and an interleaving method thereof, and more particu larly, to an NoC system employing the AXI protocol and an interleaving method thereof, capable of Smoothly transmit ting data according to the interleaving acceptance capability of an Intellectual Property (IP) when the AXI protocol isAXI3 write interleaving is not supported and should not be used with Xilinx IP. Word count register – It contains the. phy b. WID is removed in AXI4, so WDATA must strictly follow the AW order. • Support for Read-only and Write-only masters and slaves, resulting in reduced resource. 8. i understood that read transactions enable interleaving. axi_extra_0_0_wuser_data: 32: Input: Extra Write Data (AXI WUSER port). 0 03 June 2011 D-2c Non-Confidential Public beta draft of AMBA AXI and ACE Protocol Specification 28 October 2011 D Non-Confidential First release of AMBA AXI and ACE Protocol Specification1 Introduction. need to support master write/read transactions to and from axi_ddr via axi_interconnect. AXI4 has removed the support for write data interleaving. Programmable interleave size per transaction to allow fixed and variable data interleaving in a transaction. Your write addresses are 1,2,3. Synopsys. Address register – It contains the address to specify the desired location in memory. You can also instantiate the AXI Data Width Converter core directly in your design (without AXI Interconnect core) along any pathway between a wide AXI master device and a narrower AXI slave. The integrated memory controllers (MCs) are integrated into the AXI NoC core. While AXI4 supports burst lengths of up to 256 beats. Enables sharing the AXI CDMA module between multiple request sources, interleaving requests and distributing responses. X12039. . • Bandwidth The rate at which data can be driven across the interface. 12. 0 03 June 2011 D-2c Non-Confidential Public beta draft of AMBA AXI and ACE Protocol Specification 28 October 2011 D Non-Confidential First release of AMBA AXI and ACE Protocol Specificationaxi report - Download as adenine PDF press view online for cost-free. AXI4 does NOT help write interleaving 3. 2. Newest. axi_ram_wr_rd_if module. The AXI master writes to memory locations @0x2000000 to 0x3fffffff. An AXI master can provide two write addresses one after another if there is support of two outstanding addresses. All the five individual channels contain a set of data signals and utilize a two-way VALID and READY handshake process (Fig. svt_err_check_stats attribute. Appendix A Comparison with the AXI4 Write Data. 1 Introduction. Address register – It contains the address to specify the desired location in memory. AXI4 has removed the support for write data interleaving. {"payload":{"allShortcutsEnabled":false,"fileTree":{"AXI_Protocol/Design and Verification":{"items":[{"name":"AXI_Interface. axi_rw_join and axi_rw_split to split/join the read and write channels of an AXI bus. 4. I have seen many IP providers e. recently, i read "AMBA® AXI Protocol. 0): AXI4 (Full AXI4): For high-performance memory -mapped requirements. Supports multiple outstanding transactions: * Supports connected masters with multiple reordering depth (ID threads). Separate address/control, data and response phases. The RDMA, has 1024 Channels/Transaction ID’s (TID) and supports interleaving and out of order. 19 March 2004 B Non-Confidential First release of AXI specification v1. Key Features of AXI Protocol Separate address/control and data phases Separate Read and Write data channels Support for unaligned data transfers using byte strobes Ex:Access a 32-bit data that starts at address 0x80004002 Burst-based transactions with only start address issued Ability to issue multiple outstanding addresses ID signals Out of order transaction completion ID signals Easy. Supports 64, 128, 256, and 512 bit datapaths. 而out-of-order和interleaving则是相对于 transaction，out-of-order说的是发送transaction 和接收的cmd之间的顺序没有关系，如先接到A的cmd，再接到B的cmd，则可以先发B的data，再发A的data. It performs the following steps: Initialization and configuration of the AXI Verification IPs. Acceptance capability of data interleaving depth is retrieved data phase where the transfers. Get the WDATA and AW together from the outstanding queue. Include the AXI Performance Monitor IPs which will display read/write latency and bandwidth. 2. Besides Cortex-A9 master there are the other masters (DMAC, PL AXI masters) and there are AXI interconnects, that are at the same time slaves and masters, and passes write data from multiple sources (slave interfaces), and might interleve them. axi protocol. Can anybody help me to understand the reasoning behind write data interleaving ordering restriction imposed by AXI spec. Each AXI4[-Stream] request and response is encoded in a single AXI4[-Stream] packet, or the packet can be decoded to be an AXI4[-Stream] request or response, related functions in AXI4Packet. For bulk memorytomemory transfers, we have developed a custom lowlatency multiPipelined AXI driver; back to back transfers with 0 in-between wait clocks. 2. Figure 1. posiible to achieve required through put as before using this sysytem? Any replies will be greatly appreciated. In this work, single master and single slave communication using AXI protocol with 32-bit SARM are designed. 19 March 2004 B Non-Confidential First release of AXI specification v1. AXI3 helps locked transfers, AXI4 does NOT support locked transfers. Since the scoreboard is a uvm_component. You may reply publicly to this message via plain. • The AXI SmartConnect core does not support discontinued AXI3 features: ° Atomic locked transactions: This feature was retracted by the AXI4 protocol. #- Configure the AXI3 Slave VIP to interleaving depth of 1 #- Check that the Interconnect is forwarding the transactions to the AXI3 Slave VIP without write data interleaving. However, the word of the data interleaving is not included in. From AXI4-Stream Interconnect PG035, "the IP core is capable of performing data switching/routing. -Joe G. By continuing to use our site, you consent to our cookies. The first 1, 2 and 3 byte strobes must be zero because you address is skipping those. If the slave has a write data interleave depth of two, the slave can accept two addresses of interleaving data. In the waveform window, expand the write data channel of the m00_axi interface. The problem was that there was no awready on AXI interface at the VIP. From the AMBA AXI4-Stream specification , the TDEST signal can be used to route AXI4 data stream. 3. By disabling cookies, some features of the site will not workYour understanding is correct. The AVI Mux filter takes the video stream from the capture pin and packages it into an AVI stream. The software would keep writing over the data in DRAM until a.