• AXI Burst Size meaning

    hayk
    hayk

    Dear Community,

    I am reading AXI speck from the ARM, please help better understand the AXI, by answering my questions regarding to Burst transaction.

    a)
    I cannot clearly understand the meaning of Burst size signals - ARSIZE and AWSIZE.
    When there are Bust…

    • over 2 years ago
    • System
    • SoC Design forum
  • Does CHI protocol interface use pipelines or register slice to support long distance connections ?

    armchronos
    armchronos

    Hi,

    I assume CHI needs to either pipeline or implement something like the AXI register slice to support long distance connections.

    Please confirm and where can I find relevant information for this topic.

    Thanks,

    David

    • over 2 years ago
    • System
    • SoC Design forum
  • AXI AHB APB quick reference cheat sheet

    MattHutson
    MattHutson

    Hi,

     I have tried to find a quick reference for AXI, AHB & APB to no avail, and after having to flit between the various documents and tables, I eventually created my own.

    So not sure of the legal ramifications of posting this elsewhere and whether…

    • over 1 year ago
    • System
    • SoC Design forum
  • AMBA AXI reset

    Sreekanth Reddy
    Sreekanth Reddy

    According to spec IHI0022D_amba_axi_protocol_spec  section A2.1 page number: A2-28

            "All signals are sampled on the rising edge of the global clock "

         Q) Should RESET_N also  be sampled on the rising edge only?

    Section A3.1.2,  says

       "The AXI protocol…

    • over 1 year ago
    • System
    • SoC Design forum
  • Can the ARM corrupt the timing on the AXI bus

    skbrown
    skbrown

    I have a Cyclone V SOC system, and the ARM is running Linux, and the FPGA is running SDI video and VIP suite items. The FPGA DDR memory is being used by the VIP suite and all works well. The ARM is using the DDR memory attached to it, and Linux does not…

    • over 1 year ago
    • System
    • SoC Design forum
  • Why does AHB or APB support only 16 slave devices?

    Ravindran
    Ravindran

    I would like to know why only 16 slave device select lines are present in the AHB and APB bus architectures.

    • Answered
    • over 3 years ago
    • System
    • SoC Design forum
  • what are these axi transaction types mean? fixed, incremental, wrapped, reversed? Are there any docs descriped them in detail?

    bander
    bander

    As the title says..

    • Answered
    • over 3 years ago
    • System
    • SoC Design forum
  • AXI

    Muthuvenkatesh
    Muthuvenkatesh

    What is byte lane in AXI?

    • Answered
    • over 3 years ago
    • System
    • SoC Design forum
  • read transfers

    vidya
    vidya

    In read transfres how the slave indicates the transaction is over?

    • over 3 years ago
    • System
    • SoC Design forum
  • AXI read transfer

    vidya
    vidya

    If the slave is not able to process read request from master, which response is expected from slave?

    • Answered
    • over 3 years ago
    • System
    • SoC Design forum
  • AXI

    Muthuvenkatesh
    Muthuvenkatesh

    Why burst must not cross 4kb  in AXI ?

    • over 3 years ago
    • System
    • SoC Design forum
  • Working frequency on AMBA- APB,AHB, AXI

    Ujjwal.K64
    Ujjwal.K64

    Hii,

    Greetings !!

    I would like to know the standard operating clock frequency and data rate of AMBA- apb, ahb, axi.

    Please someone help me out.

    Thanks in advance

    Regards

    Ujjwal

    • Answered
    • over 3 years ago
    • System
    • SoC Design forum
  • axi read transfers

    vidya
    vidya

    what is the difference between overlapping and out of order transfers in Aciform the explanation it seems that both are same is this the case?

    • Answered
    • over 3 years ago
    • System
    • SoC Design forum
  • 4k boundary in AXI

    vidya
    vidya

    Why the word boundary in AXI is 4k?

    • Answered
    • over 3 years ago
    • System
    • SoC Design forum
  • AXI transfer

    isounder
    isounder

    Consider Data interface is 64 bit.
    It is Write transfer.
    AXI master need to transfer 11 bytes and starting address is 0. Anyone suggest which one is a valid among below mentioned two scenarios.

    Scenario 1:
    Burst -> Address:0, size:3, length:1, burst_type…

    • Answered
    • over 2 years ago
    • System
    • SoC Design forum
  • Why do AMBA AXI does not support AxBURST of decrementing address type?

    rssortur
    rssortur

    Use case which come to my mind is.

    1. Display controller might need to flip an image 180 degrees. Here memory reading pattern is reversed.

    2. Where ever there is LIFO (Last In Fist Out) implementations.

    • over 2 years ago
    • System
    • SoC Design forum
  • AXI WRITE DATA CHANNEL

    Muthu_venkatesh
    Muthu_venkatesh

    Hi All,

                           I am doing single write operation to AXI slave from avalon BFM. The data and address signals

    are reached into the axi slave.But if i am try to read back the data which i have written in the same location,the data is  not matched.

    It…

    • over 2 years ago
    • System
    • SoC Design forum
  • AXI read reordering depth and read interleaving depth. Are they same?AXI

    rssortur
    rssortur

    Is interleave and reorder the same concept?

    My interpretation is a slave can reorder without interleaving, which means entire read burst are reordered with no interleaving. So my understanding is they are different. Confirm my understanding.

    • over 2 years ago
    • System
    • SoC Design forum
  • why we need write strobe in axi

    verifengg
    verifengg

    why we need write strobe signal in axi where we generate in our verif env

    Thanks

    • Answered
    • over 2 years ago
    • System
    • SoC Design forum
  • AXI WVALID before AWVALID

    srp
    srp

    what happen if WVALID asserted before AWVALID ??

    • Answered
    • over 2 years ago
    • System
    • SoC Design forum
  • Sampling on positive edge of clock of slave in AXI3

    karukaka
    karukaka

    How do you confirm if a slave is sampling on positive edge of clock only ? How can we prove this in simulation

    • over 1 year ago
    • System
    • SoC Design forum
  • Is there relation between the de-assertion of BVALID and BREADY signals ?

    Amit Mishra
    Amit Mishra

    Hi,

    I am aware that like other channels, the handshaking signals of the Write Response can assert in any order (that means BVALID and BREADY can assert either together at the same clock edge of one after the other in both the orders). But is there any…

    • over 1 year ago
    • System
    • SoC Design forum
  • Looking for pin/bit accurate AXI4 SystemC models

    Vijayvithal
    Vijayvithal

    Hi,

    I am creating a systemC model for a peripheral which has an AXI4 interface.

    Is there a bit and pin accurate AXI4 SystemC model similar to the ones available for OCP?

    Is it available from ARM, a ThirdParty vendor, or the opensource community?

    • over 1 year ago
    • System
    • SoC Design forum
  • AXI4 Burst Transactions

    surajrgupta
    surajrgupta

    I am new to AXI4 protocol. I would like to know how many clock cycles are required to complete a AXI4 burst write transaction.

    Eg. Burst length- Two , Burst size 16 bytes.

    Please give me answers for different types of data bus width say for bus width …

    • Answered
    • over 1 year ago
    • System
    • SoC Design forum
  • AXI ARID AWID

    Vasu
    Vasu

    What is the size of AWID and ARIDs? On what basis size is determined? How the AxIDs are generated?

    • over 2 years ago
    • System
    • SoC Design forum
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