2013年4月3日

tq max and min delay

摘要： setup and hold relationships1. default2. multicycles : choose different clock edges of the existing waveforms.3. max and min : modify setup and hold relationships to arbitrary values.max and mindevice-centric constraintssystem-centric constraintsmax min as substitutes for these device-centri... 阅读全文

posted @ 2013-04-03 18:11 testset 阅读(178) 评论(0) 推荐(0) 编辑

tq multicycles

摘要： multicycles 1. determining multicycle relationship in 5 steps 1.1 default setup relationship = set_multicycle_path -setup 1 1.2 setup relationship = default_setup_relation + (MC_SETUP_VALUE -1)*clock_period; 1.3 source-synchronous interface :MC_SETUP_VALUE maybe 0 1.4 -start : laun... 阅读全文

posted @ 2013-04-03 14:37 testset 阅读(121) 评论(0) 推荐(0) 编辑

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