addressing space for any slave on AXI bus interconnect. transfer. The AXI protocol provides the dedicated channels for memory read and write operations. v : AXI to AXI lite converter (write) rtl/axi_cdma. Spring. Altera Mentor Verification IP Altera Edition AMBA AXI3/4TM User Manual • Axi3 bfm write data interleaving, Bfm read data interleaving, Supported simulators • Altera Measuring instruments Manuals Directory ManualsDir. AMBA. Because the AXI protocol allows simultaneous read and write commands to be issued, two SDRAM control ports are required to form an AXI interface. docx from ECE 111 at Netaji Subhas Institute of Technology. The Read transaction ID (RID) provided by the HBM2 controller corresponds to the Read Address ID (ARID). >or its possible with single-master cases also? Yes. apb_test doesn't extend from uvm_test. 3. In write transactions, in which all the data flows from the master to the slave, the AXI protocol has an additional write response channel to allow the slave to signal to the master the completion of the write transaction. it seems that my waveform does not meet the axi spec, because the awready can not always be 1 in rtl. . The pcie_us_axis_cq_demux module can be. If you are not happy with the use of these cookies, please review our Cookie Policy to learn how they can be disabled. Number of Interleaved Memory Controllers: 1 ; AXI Performance Monitor for PL-2-NOC AXI-MM pins: Checked. Write Data Can Appear at an AXI Interface before the Write Address, which can Cause a Deadlock Condition Description: Workaround: Status. 1 Answer. I'm studying about AMBA 3. Issue pending requests and wait for callback notification. There are 5 channels in AXI and each one is independent of the other. The write operation process starts when the master sends an address and control information on the write address channel as shown in fig. Write data interleaving 10. The DDRMC is a dual channel design with fine interleaving disabled. Write standard new() function. 2 Write address channel signalsTable 2-2 lists the AXI write address channel signals. CoreAXI4Interconnect is a configurable core with the following features: • Supports high-bandwidth and low-latency designs. Double-click the AXI GPIO IP block to customize it. Upload File; Most Popular; Art & Photos; Automotive; Business; Career; Design; Education; Hi-TechYour commandline needs: +UVM_TESTNAME=apb_test. November 28, 2019 by Stephen St. It is allowed that the master can send multiple overlapping read requests to the same slave. Prefix H Denotes Advanced High-performance Bus (AHB) signals. sv","path":"src/axi_atop_filter. The channels are Write address channel (AW), Write data channel (W), Read data channel aka R (Read response is sent with it as well), Read address channel (AR), and Write response channel (B). Copyright © 2003-2010 ARM. Dec 17, 2021 at 19:03. 4 Write interleaving. AXI4 QoS signals do not influence arbitration priority. Get the WDATA and AW together from the outstanding queue. Table 43. Verification IP (VIP) supports all four types of atomic transactions:. By continuing to use our site, you consent to our cookies. 是否支持乱序只与slave有关，与master无关。. ARM Limited. Sc. If you are not happy with the use of these cookies, please review our Cookie Policy to learn how they can be disabled. signaling. By disabling cookies, some features of the site will not workSometimes I need to verify a write-only AXI interface, such as in this AXI-lite write-channel to wishbone bridge. Compare this to a "blocked practice," where you focus on a single subject for an extended period of time. AXI Master Configuration for ACP Access 10. <二. It includes the following features: ID width can range upto 32-bits. AXI3 supports write interleaving. The problem I am facing is in AXI interface of MIG where 4-bit ID signal is present for all the transactiThis site uses cookies to store information on your computer. Signals in this interface contains only minimum set of signals that are required to perform single write operation on AXI bus with fixed size and burst type. The reason interleaving was in AXI3 was to maximise the write data bus bandwidth, using gaps in master's write data availability to pass transfers for other write transactions. When address phases of READ and WRITE transactions get completed at same time, it is not deterministic whether it is a read-write or write-read scenario. Out of Order completion但是，Write interleaving增加了系统总线设计的复杂度，而且很容易造成死，所以AXI4中不支持了。 这就有了一个新的概念，排序模型（ordering model）。 相同ID和目的地的事务请求必须保证顺序；返回的相同ID的事务响应要与请求顺序相同。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. It is a Technique that divides memory into. addressing space for any slave on AXI bus interconnect. the data interleaving is responsible for slaves and the write data interleaving is responsible for masters. September 1, 2014 at 6:53 PM AXI GP master and write data interleaving I'm designing AXI slave to connect it to Zynq AXI GP master and I'd like to know if AXI GP master can interleave write data. There is one write strobe for each eight bits of the write data bus. AXI is basically a multi-layer (i. In practice, removing write interleaving from this part of the AMBA standard makes certain aspects of the AXI protocol easier to handle. 1. Select the IP Configuration page. DATA. but i got two questions about AXI after hi. Enables sharing the PCIe AXI DMA module between multiple request sources, interleaving requests and distributing responses. AXI4 does NOT support write interleaving. AMBA AXI Protocol Specification · AMBA AXI Protocol Specification. sv","path":"src/axi_atop_filter. AXI nonblocking crossbar interconnect with parametrizable data and address interface widths and master and slave interface counts. Memory Interleaving is used to improve the access time of the main memory. 0 AXI Spec. The AMBA AXI4 Interconnect core connects one or more AXI memory-mapped master devices to one or more memory-mapped slave devices. This approach makes good use of memory. find likely ancestor, descendant, or conflicting patches for. txt) or read online for free. I'm interested to know what happens if on an AXI write transaction, the WR data channel put the channel info before the address channel info is valid. 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 SpecificationInterleaving is a process or methodology to make a system more efficient, fast and reliable by arranging data in a noncontiguous manner. but i have two questions about AXI afterPrefix A Denotes global Advanced eXtensible Interface (AXI) signals: Prefix AR Denotes AXI read address channel signals. Breaking Changes. AXI Interconnect v2. 843819: Memory Locations May be Accessed Speculatively Due to Instruction Fetches When. devices must be configured as if connected to a slave with a Write interleaving depth of one. I think data interleaving should not be done within a single burst. It is part of the Advanced Microcontroller Bus Architecture 3 (AXI3) and 4 (AXI4) specifications. While AXI 4 only supports read data interleave. ) This is why the VIP thought that the bresp arrived earlier than the awready. Regarding AXI WR transaction. Upload File; Most Popular; Art & Photos; Automotive; Business; Career; Design; Education; Hi-TechJoins a read and a write slave into one single read / write master. vinash. 2 v6 ) in Vivado IP Integrator. 1 2 PG059 December 20, 2017 Table…This site uses cookies to store information on your computer. In practice, removing write interleaving from this part of the AMBA standard makes certain aspects of the AXI protocol easier to handle. The AMBA Designer (ADR-400) tool provides a singled. 2'b00 prefixes a read request, 2'b01 a write request, 2'b10 a set address request, and 2'b11 is either a reset request (handled earlier) or a. The integrated memory controllers (MCs) are integrated into the AXI NoC core. Additional banked, interleaved, split variant. rtl e. Implement build_phase and create a TLM analysis export instance. The AMBA AXI4 Interconnect core connects one or more AXI memory-mapped master devices to one or more memory-mapped slave devices. Transaction address will be randomly selected based on system address map. Read transactions are handled similar to write transactions, except that before transferring the transaction to the AXI4 master read channel, the PCIESS checks the transmit buffer for available space. 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. g. · • The AXI Interconnect does not time-out if the destination of any AXI channel transfer stalls indefinitely; of 46 /46. Is it . Resources Developer Site; Xilinx Wiki; Xilinx GithubThis book is for AMBA AXI Protocol Specification. Stage 3: Write Calibration Part Two—DQ/DQS Centering 1. School of Engineering Science. axi_crossbar module. the AXI3 spec described the following (seen in all AXI spec releases up to and including version F). Write interleaving is hardly used by regular masters but can be used by fabrics that. 1. svt_axi_checker:: trace_tag_validity_check. QoS signals are propagated from SI to MI. A rather significant change seems to be the banning of write interleaving, which could help improve the system throughput. 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. axi_extra_0_0_wuser_data: 32: Input: Extra Write Data (AXI WUSER port). AXI3 masterFigure 3 shows a timing diagram of an AXI write transaction. wstrb { Write strobes, his signal indicates which byte lanes to update in memory3 As per the standards, 4KB is the minm. 一致性：所有接口子集都使用相同的传输协议。. 2. - Read data of transactions with different ARID values can be interleaved. 17. Memory analysis. 16. 3 Verification Setup 3. between master and slave using a write data channel to the slave or a read data channel to the master. In AXI Interconnect IP configuration, I changed the Acceptance parameter to 5 from 1 (All sides : Master Read/Write, Slave Read/Write). As shown in FIG. , Simon Fraser University, 2010. • Support for Read-only and Write-only masters and slaves, resulting in reduced resource utilization. The HBM2 controller asserts the Read data in clock cycle TB. here is the part axi slave rtl generated by vivado. >Is it used only when we have multi-master cases? No. awaddr { Write address, the write address bus gives the address of the transaction. I am pretty new to AMBA protocol and I am specifically interested in AXI-4. Requested operations will be split and aligned according. i understood that read transactions enable interleaving. AXI4 supports QoS, AXI3 does NOT suppor QoS. Take some writers offers master classes and the. fpga b. AXI 3 supports both read/write data interleave. Supports all burst types. In the GPIO section, change the GPIO Width to 1 because you only need one GPIO port. v : AXI nonblocking crossbar interconnect rtl/axi. Most AXI3 masters do not support write interleaving. AXI3 supports write interleaving. A locked transaction is changed to a non-locked transaction and propagated by the MI. although me have twos questions info AXI according hi. The first 1, 2 and 3 byte strobes must be zero because you address is skipping those. AXI specs in fact talks only about point to point communication, ie. As AXI provides many features such as out of order completion, interleaving; interconnect is responsible to take care of interleaving and out of order. Write Address Read Address Write Data Read Data Write Response Channel Channel Channel Channel Channel AWID ARID WID RID BID. * Supports write response reordering, Read data reordering, and Read Data interleaving. 8. 1) A1 A2 B1 B2 (In-order)-> This is legal. The bandwidth is measured as (number of bytes transferred in an interval)/ (latency). I have seen many IP providers e. 0 AXI out-of order - WID & RID - Architectures and Processors forum - Support forums - Arm Community - AXI terminology - Multiple outstanding , out of order , interleavingAMBA AXI and ACE Protocol Specification Version E. 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. See the section in the AXI protocol titled "Dependencies between channel handshake signals . The problem is with your combination of the write address and the write strobes. NoC interleaving can be enabled or disabled. All write data beats for one write transaction are output before any write data beat for the next write transaction. The AXI4-Lite Cross-bar interconnect is used to connect one or more AXI4-Lite compliant master devices to one or more AXI4-Lite compliant slave devices. A. But the first. 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. This feature was retracted by AXI4 protocol. Select the checkbox for S AXI HP0 interface and for S AXI HP2 interface. pcie_axi_dma_desc_mux module . Lowest Area. 3. 0 AXI. Related. Secondly, the interconnect must ensure that. Secondly, the interconnect must ensure that. 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. By disabling cookies, some features of the site will not workIn the waveform window, expand the write data channel of the m00_axi interface. If non-bufferable Final destination to provide response. In case if we have 2 burst transfers with A (awid=0,wlen=2), B(awid=1,wlen=2) at axi slave model, then the data can be sent as following. Examples: see 1) 2) 3) below. 17. ° Supports write response re-ordering, Read data re-ordering, and Read Data interleaving. Figure 2. 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 case if we have 2 burst transfers with A (awid=0,wlen=2), B(awid=1,wlen=2) at axi slave model, then the data can be sent as following. Enables sharing the AXI CDMA module between multiple request sources, interleaving requests and distributing responses. CPUはコンピュータの動作に必要なデータや命令を 主記憶装置 とやり取りしながら処理します。. You say just an out-of-order responses by the interleaving. Upload File; Most Popular; Art & Photos; Automotive; Business; Career; Home; Documents; AXI OverviewA multi-channel DDR interleaving control method and device, and a storage medium. 3. By disabling cookies, some features of the site will not workAXI Master Read Transactions. scala . {"payload":{"allShortcutsEnabled":false,"fileTree":{"src":{"items":[{"name":"axi_atop_filter. >In AXI4 multi-master case how/where can i control 2 masters which are trying to access a single slave? First of all, an AXI4 master must not issue interleaved write data. 4. ? AXI4 Quality of Service (QoS) signals do not influence. Address space assigned for a single slave: It is 1 KB for AHB. the AXI3 spec described the following (seen in all AXI spec releases up to and including version F). • Write data interleaving and write data Out-of-Order • Transaction with same ARID value to different slaves • Low-power interface of the AXI busAMBA3. 5 Write data. AXI Slave1 Write interleaving depth = 2 Bufferable Bit (Conti. axi_extra_0_0_wuser_strb: 4: Input. AXI3 supports locked transfers, AXI4 does NOT support locked transfers. >Is it used only when we have multi-master cases? No. AXI Data Slave Interface. • AXI Protocol Converter connects one AXI4, AXI3 or AXI4-Lite master to one AXI slave of a different AXI memory-mapped protocol. Hi I am using Vivado 2017. Include the AXI Performance Monitor IPs which will display read/write latency and bandwidth. AXI3 supports write interleaving. As shown in FIG. Commands are determined by the first two bits of those 34-bit words. The AMBA AXI-4 system consists. The primary reason for removing WID was NOT to reduce the interface pin count, it was imply that the WID signal was no longer needed. What is APB strobe? APB bridge. For Design specification and Verification plan, refer to Memory Model. 0 AXI. 1. This doesn't cover the case of simultaneous Read and Write commands, which is certainly possible for AXI. i wonder AMBA 3. Activity points. Signal Source Description. WID is removed in AXI4, so WDATA must strictly follow the AW order. sv. Wait states are used if the buffer is full, or has less than 128 bytes of available space. Write interleaving; this feature was retracted by AXI4 protocol. This specification defines the AMBA AXI-Stream protocols: • AXI4-Stream • AXI5-Stream The collective term AXI-Stream is used in instances that describes common features. The WID always has to match corresponding AWID and in absence of write-interleaving support in AXI4, the information on WID becomes redundant. 深入理解AMBA总线（十一）AXI协议导论. 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。. But at the same time your write strobes are 0xFFFF thus all 16 byte lines are active. Research Project Submitted in Partial Fulfillment of the. The AXI4 Cross-bar interconnect is used to connect one or more AXI4 compliant master devices to one or more AXI4 compliant slave devices. interleaving. The data widths supported are: 32, 64, 128, 256, 512 and 1024. Master of Engineering Science. Chapter 4 Transfer Interleaving and Ordering Read this for a description of the stream interleaving and ordering restrictions. Write interleave depth is a characteristic of the slave or the slave. For example, we can access all four modules concurrently, obtaining parallelism. Secondly, the interconnect must ensure that. Byte invariance. Synopsys supporting burst lengths up to 256 beats inbound AXI3 I have also seen many PROTECTION vendors. Write data interleave happen when two AXI bus masters generate sequence of write data to the same slave, but the write data doesn't arrive every clock cycle. The higher bits can be used to obtain data from the module. you told me that the interleaving is a concept only for write. In the AXI protocol, can you help me understand in depth about the multiple outstanding addresses, out-of order completion and data interleaving Scenario 1: There is Only 1 AXI master (with support of only 1 Master ID) doing transaction to a slave which is capable of handling multiple outstanding addresses. By continuing to use our site, you consent to our cookies. ) IF a transaction is bufferable It is acceptable for a bridge or system level cache to provide write response. No. mem, and CPI for CXL. 1中，调用AXI BRAM Controller (4. The controller will run up to 2400Mbps in UltraScale and 2667Mbps in UltraScale+. This site uses cookies to store information on your computer. The address widths can go upto 64-bits. For example if you would like to test read operation then you also have to add all signals. 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. Introduction to High Bandwidth Memory 3. This signal indicates which byte lanes to update during a write. The AXI protocol provides the dedicated channels for memory read and write operations. Programmable interleave size per transaction to allow fixed and variable data interleaving in a transaction. AXI-Pack achieves near-ideal peak on-chip bus utilizations of 87% and 39%, speedups of 5. But it's not the only possible source of interleaved write data. svt_axi_checker:: snoop_transaction_order_check. By the time these commands arrive at our new AXI-lite bus master, they are bundled into 34-bit words as shown in Fig. . recently, i read "AMBA® AXI Protocol. wdata { Write data, actual data to be written. The AXI master writes to memory locations @0x2000000 to 0x3fffffff. Close the simulation and open the file AXI_Master_v1_0_M00_AXI. There is also an CXL 2. Hi, can you please explain what is interleaving, 1. 35 Chapter 2: AXI Support in Xilinx Tools and IPThe AMBA AXI-4 Master is designed in this project, which is modeled in Verilog and simulation results for read/write operation for data/address are shown in VCS tool. 1 to generat AXI3 upsizer/downsizer, but i am seein that few id signals m_axi_awid, m_axi_bid, m_axi_arid, m_axi_rid are missing at master side, however all these id signals are present at slave side. amba 3. #- Configure the AXI3 Slave VIP interleaving depth >1. By disabling cookies, some features of the site will not workI'm a graduate student living in south Korea. ° Write interleaving. 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. Under the Board page, make sure that both GPIO and GPIO2 are set to Custom. AXI4 supports QoS, AXI3 does NOT support QoS. Appendix B Revisions This site uses cookies to store information on your computer. Write Interleaving Interleaving rule Data with different ID can be interleaved. 0 03 March 2010 C Non-Confidential First release of AXI specification v2. sequence_length This site uses cookies to store information on your computer. Calibration Signals 1. AXI3 supports locked transfers, AXI4 does NOT support locked transfers 4. 1 Answer. g. D11 D21 D22 D12 D23 D31 D13. Free essays, homework help, flashcards, research papers, book reports, term papers, history, science, politicsDMA RAM interface demultiplexer module for write operations. Multiple Intellectual Property (IPs) are integrated in a single SoC and these IPs communicate with the help of various bus protocols. 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. By continuing to use our site, you consent to our cookies. Data packets of a maximum of 2 K bytes can be created. The AXI protocol enables: address information to be issued ahead of the actual data transfer support for multiple. UVM TestBench architecture. address does not fall to correct interleaved port. * Supports write response reordering, Read data reordering, and Read Data interleaving. **BEST SOLUTION** Finally I solved. 1. Help me to understand the reasoning behind the following ordering rule imposed by AXI protocol for write data interleaving. AXI3 supports locked transfers, AXI4 does NOT support locked transfers 4. Parametrizable interface width and. Get the WDATA and AW together from the outstanding queue. rtl/axi_axil_adapter_wr. Since the scoreboard is a uvm_component. amba 3. Thanks a lot!!!svt_axi_port_configuration:: perf_min_write_bandwidth = -1. See section A5. wdata { Write data, actual data to be written. Proprietary Notice This document is NON-CONFIDENTIAL and any use by you is subject to the terms of this notice and the Arm AMBAFree essays, homework help, flashcards, research papers, book reports, term papers, history, science, politicsAXI Interconnect v21 LogiCORE IP Product Guide Vivado Design Suite PG059 April 6 2016 AXI Interconnect Product Guide v21 2 PG059 April 6 2016 Table of Contents…AXI write data interleaving. A rather significant change seems to be the banning of write interleaving, which could help improve the system throughput. CPUの処理速度と比較し、主記憶装置へのアクセス時間は遅い。. AXI_DATA_WIDTH = 512, this is unchangeable in the MIG UI, but seems perfect for us, as we write 512 bit words. In practice, removing write interleaving from this part of the AMBA standard makes certain aspects of the AXI protocol easier to handle. 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. SIZE 2. Stage 1: Read Calibration Part One—DQS Enable Calibration and DQ/DQS Centering 1. 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. Note I havenot generated testbench for the my write channel or read channel as there are a lot of signals involved. recently, i read "AMBA® AXI Protocol. Architecture AXI protocol is Burst-based transactions with only start address issued. Recently, I read "AMBA AXI Protocol. Write interleaving 1 2 1 Write interleaving depth = 1 X Write interleaving depth > 1 OK A B. 2. here is the part axi slave rtl generated by vivado. int attribute. pcie_axi_master module. Axi handshake. AXI4 has removed the support for write data interleaving. AXI Port. Thank you. We use the MIGs AXI4 interface. note: Both the masters are accessing the same slave. Systems and methods consistent with the present invention relate to a Network-on-Chip (NoC) system employing the Advanced eXtensible Interface (AXI) protocol and an interleaving method thereof, and more particularly, to an NoC system employing the AXI protocol and an interleaving method thereof, capable of smoothly transmitting data according to the interleaving acceptance capability of an. Allows reads to bypass writes, in contrast to axi_to_mem, however needs more hardware. 1) A1 A2 B1 B2 (In-order)-> This is legal. We could not find that page in version E or the latest version, so we have taken you to the first page of version E of AMBA AXI Protocol Specification. >In AXI4 multi-master case how/where can i control 2 masters which are trying to access a single slave? First of all, an AXI4 master must not issue interleaved write data. ° Write interleaving: This feature was retracted by AXI4 protocol. The write data channel, which carries write data. * Multi-threaded traffic (masters issuing multiple ID threads) is supported across the interconnect topology regardless of internal. amba 3. . pdf". AXI Slave Write Transactions. This means the WID is not supported in AXI4. 1) March 7, 2011. The testbench file is cdma_tb. phy b. pdf". AXI Protocol The AXI protocol: Permits the address information to be transferred ahead of actual transfer. >In AXI4 multi-master case how/where can i control 2 masters which are trying to access a single slave? First of all, an AXI4 master must not issue interleaved write data. Read now: data analyst course in hyderabad. 2. FIG. Pass condition: If trace_tag is set to. PG059-AXI-InTERconnEcT 编辑者： 时 间：2014-12-16 Introduction介绍 Xilinx LogiccoRE IP AXI In. 1 LogiCORE IP Product Guide Vivado Design Suite PG059 December 20, 2017 AXI Interconnect Product Guide v2. メモリインターリーブ （ 英: memory interleaving ）とは、 主記憶装置 と CPU との間の データ転送 を高速化する方法の一つである。. For each write or read, start_delay AXI cycles are introduced after each command before the next write or read is issued. But at the same time your write strobes are 0xFFFF. when the WID is present in the old AXI version, a WDATA re-order mechanism will be inferred, and thanks to the remove of WID, we do not need that mechanism any longer. Bufferable AXI. By interleaving the two write data streams, the interconnect can improve system performance. 1. By continuing to use our site, you consent to our cookies. com - online owner manuals libraryThe System-On-Chip (SoC) designs are becoming more complex nowadays. ( int beat_num = -1 ) Returns the total number of bytes transferred in this transaction or beat number. ° Write interleaving. 2. This supports reading and writing a. AXI-4 questions. AXI Interconnect Product Guide v2. AXI Port Signals. you put apb_test in my_pkg . AXI specification says that the write data interleaving depth is statically configured and the slave declares a write data interleaving depth. The Advanced eXtensible Interface (AXI), part of the ARM Advanced Microcontroller Bus Architecture 3 (AXI3) and 4 (AXI4) specifications, is a parallel high-performance, synchronous, high-frequency, multi-master, multi-slave communication interface, mainly designed for on-chip communication. If you are not happy with the use of these cookies, please review our Cookie Policy to learn how they can be disabled. When the AHB subsystem is bridged to an AXI subsystem through a combination of DW_ahb_eh2h and DW_axi_hmx, it is possible to do DMA transfers between AHB and AXI peripherals. The Write data interleaving of AXI protocol specification says: "A master interface that is capable of generating write data with only one AWID value generates all write data in the same order in which it issues the addresses. In a synchronous system, the maximum bandwidth is limited by the product of the clock speed and the width of the data bus. 5k次，点赞20次，收藏158次。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.