cnt2.tan.summary

对输入时钟做除以8的分频和除以4的分频功能

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Timing Analyzer Summary
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Type           : Worst-case tco
Slack          : N/A
Required Time  : None
Actual Time    : 4.804 ns
From           : HH[2]
To             : Q9

Type           : Worst-case minimum tco
Slack          : N/A
Required Time  : None
Actual Time    : 4.802 ns
From           : HH[1]
To             : Q8

Type           : Clock Setup: 'CLK'
Slack          : N/A
Required Time  : None
Actual Time    : Restricted to 405.19 MHz ( period = 2.468 ns )
From           : HH[2]
To             : HH[2]

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