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    SOFTWARE MODE REGISTER ACCESS FOR PLATFORM MARGINING AND DEBUG
    3.
    发明公开
    SOFTWARE MODE REGISTER ACCESS FOR PLATFORM MARGINING AND DEBUG 审中-实审

    公开(公告)号：EP4339769A3

    公开(公告)日：2024-05-22

    申请号：EP24153762.0

    申请日：2017-07-27

    申请人： Advanced Micro Devices, Inc.

    发明人： BRANDL, Kevin ,  MURPHY, Scott P. ,  MAGRO, James R. ,  LUBANA, Paramjit K.

    IPC分类号： G06F13/16 ,  G06F11/10 ,  G06F12/02

    CPC分类号： G06F11/1048 ,  G06F13/1642 ,  G06F12/0292 ,  G06F13/1689

    摘要： A data processing system includes a memory channel and a data processor coupled to the memory channel. The data processor includes a memory controller coupled to the memory channel and is adapted to access at least one rank of double data rate memory. The memory controller includes a command queue for storing received memory access requests, and an arbiter for picking memory access requests from the command queue, and then providing the memory access requests to the memory channel. The memory access requests are selected based onpredetermined criteria, and in response to a mode register access request to quiesce pending operations. Additionally, the memory controller includes a mode register access controller that in response to the mode register access request, generates at least one corresponding mode register set command to a memory bus. The memory controller then relinquishes control of the memory bus to the arbiter thereafter.