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    Measurement and control of bandwidth in an interconnect
    2.
    发明专利
    Measurement and control of bandwidth in an interconnect 未知

    公开(公告)号：GB2500915A

    公开(公告)日：2013-10-09

    申请号：GB201206100

    申请日：2012-04-05

    Applicant: ST MICROELECTRONICS GRENOBLE 2 ,  ST MICROELECTRONICS SRL

    Inventor： URZI IGANZIO ANTONINO ,  PEYRARD RENE ,  MANGANO DANIELE

    IPC: G06F1/02 ,  G01R31/317 ,  H04L47/20 ,  H04L47/22 ,  H04L47/2416

    Abstract: The served bandwidth of an interconnect, such as a network on chip, is measured using a bandwidth counter 60 and compared to one or more target bandwidths 40, 42, 44 in a subtractor accumulator 58. The bandwidth measurement is reset in response to an event such as a new frame 56 or change from odd line to even line served by a video timing generator of a video display unit 20. In video signals, three target bandwidths are set for each of the vertical blanking interval (VBI) period, the odd line and the even line. The signal is regulated to the target bandwidths, making use of the VBI period (see figures 4a and 4b). The difference of the served bandwidth from the target bandwidth may be used as dynamic feedback to quality of service management. The invention may also be applied in graphics processing or other multimedia applications.

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