mirror of https://github.com/zxdos/zxuno.git
10 lines
474 B
Plaintext
10 lines
474 B
Plaintext
# Timing constraints
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NET "clk50mhz" PERIOD=20 ns;
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NET "cpuclk" KEEP | S | PERIOD=54 ns; #71.111 ns; #35.555 ns; # 28.125 MHz max
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NET "cpuclkplain" KEEP | S | PERIOD=54 ns; #71.111 ns; #35.555 ns; # 28.125 MHz max
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NET "sysclk" KEEP | S | PERIOD=27 ns; #35.555 ns; # 28.125 MHz actual frequency for 50Hz vertical refresh
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NET "clk14" KEEP | S | PERIOD=54 ns; #71.111 ns;
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NET "clk7" KEEP | S | PERIOD=108 ns; #142.222 ns;
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NET "clk3d5" KEEP | S | PERIOD=216 ns; #284.444 ns;
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