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  • innovus clock tree instance ccl cdb cwb等 名字命名含义

    Legacy UI : show_ccopt_cell_name_info
    Common UI : report_cts_cell_name_info

    Below is a list of the strings used and their explanation:

    StringDescription

    cuk

    Cts: Unknown creator, will not appear in the netlist.

    ccl_a Cts: Created during clustering by the agglom clustering algorithm
    cbi Cts: Created by the swapping buffers and inverters for power.

    cex

    Cts: Existing cells in the clock tree which cannot be removed.

    coi

    Cts: Cells created as a result of cancelling out inversions.

    ccl

    Cts: Created by the clustering process to meet the slew target.

    ccd

    Cts: Created by clustering for balancing the tree - these cells are not necessary to meet the slew target.

    cci

    Cts: Created by the clustering process to fix inversion.

    csf

    Cts: Created by the CTS slew fixing step in cases where clustering did not meet the slew target.

    cms

    Cts: Created during the process of physically moving clock gates to improve their enable timing.

    cid

    Cts: Created by CTS on the outputs of weak driving cells to reduce insertion delay.

    cdb

    Cts: Created by CTS to balance the delays in the clock tree.

    cwb

    Cts: Created by CTS to balance the wire delays in the clock tree.

    cfo

    Cts: Created by CTS to reduce fanout skew.

    csk

    Cts: Created by the CTS skew fixing step to finely balance the clock tree.

    cmf

    Cts: Created by CTS to buffer long nets.

    cbc

    Cts: Created by the clock tree conditioning step to clone off sub trees that cannot be optimized by gated synthesis, such as those parts above RAMs, black boxes, and lockup latches.

    css

    Cts: Created by the early cloning of simple sink allocations.

    cdc

    Cts: A clock driver created by adding the driver cell process for the add_driver_cell property.

    cpd  Cts: A clock driver created below an input port or above an output port specified by attribute cts_add_port_driver.

    ccg

    Cts: A clock gate created by one of the gated synthesis algorithms.

    cse

    Cts: A clock driver created above exclude pins to remove them from the clock tree.

    cfh

    Cts: A clock driver created as part of a flexible H-tree.

    cat  Cts: Created by the add_clock_tree_source_group_roots command

    cpc_drv

    Cts: A clock driver created by post conditioning​

    cpc_sk Cts : A clock driver created by post conditioning
    PRO Post route optimization
    PRO_drv Post route optimization
    PRO_sk Post route optimization
    sfc Cloned by slew fixing
    ccc Cts : Created by clone_clock_cells command
    qrb Cts: A clock driver created by global route buffering
    sgb Cts : A clock driver created by global route buffering
    idc Cloned to reduce insertion delay
    vgb Cts : A clock driver crated by VG buffering
    USK skewClock
    cff Cts: A clock driver created by fanout fixing
    CTSG Unnamed : this should not be used anymore
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  • 原文地址:https://www.cnblogs.com/learnsure/p/14291946.html
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