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本帖最后由 Heaven_1 于 2022-6-24 16:47 编辑
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7 c, p7 m* ~4 [# u: [' F4 r6 K( G电气规则:等长,差分对对间线长误差
- Y) B* |) Q& X3 V" s2 [6 Y) }2 b物理规则:线宽,线距
; U. c4 R' l+ B( p间距规则:间距相关设置! M3 Z# b5 K& C- u. X L
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% g5 h1 T3 z- G# `% T4 R, iClass:A Net Class constraint object lets you group net objects that share common characteristics and require a similar constraint requirement
( x, c3 a! [ J' D) O/ Y, @Net group:A Net Group is a collection of various net (signal) objects. Different type of net objects, such as nets, buses, differential pairs, and XNets, can be the members of a Net Group. , r `% u% @6 I( Z/ X
Match group:A Match Group is a collection of nets, Xnets, or pin pairs which must all match (in delay or length) or be relative to a specific target within the group
3 }7 |' o1 A+ O# WPin pair:Pin Pairs may not be directly connected but they must exist on the same net or Xnet! U; u4 {9 R# D
Differential pair:差分对4 N1 M7 s, b9 s$ u0 k
Net:网络
# i' n, b; u. W; yX-net:
. R! s( ?7 R0 ~, F+ n" SRegion:区域
+ v+ {" ?8 Y% q& ORegion class:A Region Class constraint object lets you constrain the members of a Net Class—within a Region—differently than the original constraints on that Region
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