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AXI

Muthuvenkatesh

What is byte lane in AXI?

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  • +1
    The signals used to transfer data (RDATA and WDATA) are split into lanes, where each lane is 8 bits. So a 32-bit bus would give you four lanes.

    Lanes become important when you are transferring quantities of data smaller than the bus width. For example, a 16-bit write on a 32-bit bus.

    For why it matters, see chapter 9 of the AMBA4 AXI specification.
    infocenter.arm.com/.../index.jsp
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  • +1
    The signals used to transfer data (RDATA and WDATA) are split into lanes, where each lane is 8 bits. So a 32-bit bus would give you four lanes.

    Lanes become important when you are transferring quantities of data smaller than the bus width. For example, a 16-bit write on a 32-bit bus.

    For why it matters, see chapter 9 of the AMBA4 AXI specification.
    infocenter.arm.com/.../index.jsp
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