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## $Id: nexys2_time_fx2_ic.ucf 448 2012-01-02 21:55:11Z mueller $
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## $Id: nexys2_time_fx2_ic.ucf 537 2013-10-06 09:06:23Z mueller $
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##
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##
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## Revision History:
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## Revision History:
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## Date Rev Version Comment
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## Date Rev Version Comment
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## 2013-10-05 537 1.1 add VALID for hold time check
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## 2012-01-01 448 1.0 Initial version
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## 2012-01-01 448 1.0 Initial version
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##
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##
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## timing rules for a 30 MHz internal clock design:
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## timing rules for a 30 MHz internal clock design:
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## Period: 30 MHz
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## Period: 30 MHz
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## clk->out: longest setup time in FX2 is t_SRD (clk->SLRD) of 18.7 ns
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## clk->out: longest setup time in FX2 is t_SRD (clk->SLRD) of 18.7 ns
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NET "I_FX2_IFCLK" CLOCK_DEDICATED_ROUTE = FALSE;
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NET "I_FX2_IFCLK" CLOCK_DEDICATED_ROUTE = FALSE;
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##
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##
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NET "I_FX2_IFCLK" TNM_NET = "I_FX2_IFCLK";
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NET "I_FX2_IFCLK" TNM_NET = "I_FX2_IFCLK";
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TIMESPEC "TS_I_FX2_IFCLK" = PERIOD "I_FX2_IFCLK" 33.34 ns HIGH 50 %;
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TIMESPEC "TS_I_FX2_IFCLK" = PERIOD "I_FX2_IFCLK" 33.34 ns HIGH 50 %;
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OFFSET = IN 2.5 ns BEFORE "I_FX2_IFCLK";
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OFFSET = IN 2.5 ns VALID 33 ns BEFORE "I_FX2_IFCLK";
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OFFSET = OUT 10 ns AFTER "I_FX2_IFCLK";
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OFFSET = OUT 10 ns VALID 33 ns AFTER "I_FX2_IFCLK";
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OFFSET = OUT 10 ns VALID 33 ns AFTER "I_FX2_IFCLK";
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OFFSET = OUT 10 ns VALID 33 ns AFTER "I_FX2_IFCLK";
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