XESS XStend XS40, Manual

Page: 34 / 63

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145- -- map the pixel to a color if the video is not blanked
146- IF pblank='0' THEN
147- CASE pixrg(1 DOWNTO 0) IS
148- WHEN "00" => rgb <= "110000"; -- red
149- WHEN "01" => rgb <= "001100"; -- green
150- WHEN "10" => rgb <= "000011"; -- blue
151- WHEN OTHERS => rgb <= "111111"; -- white
152- END CASE;
153- ELSE -- otherwise, output black if the video is blanked
154- rgb <= "000000"; -- black
155- END IF;
156- END IF;
157- END PROCESS;
158-
159- END vga_generator_arch;
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Listing 18: XS40 UCF file for the VGA signal generator.
001- net clk loc=p13;
002- net reset loc=p44;
003- net data<0> loc=p41;
004- net data<1> loc=p40;
005- net data<2> loc=p39;
006- net data<3> loc=p38;
007- net data<4> loc=p35;
008- net data<5> loc=p81;
009- net data<6> loc=p80;
010- net data<7> loc=p10;
011- net address<0> loc=p3;
012- net address<1> loc=p4;
013- net address<2> loc=p5;
014- net address<3> loc=p78;
015- net address<4> loc=p79;
016- net address<5> loc=p82;
017- net address<6> loc=p83;
018- net address<7> loc=p84;
019- net address<8> loc=p59;
020- net address<9> loc=p57;
021- net address<10> loc=p51;
022- net address<11> loc=p56;
023- net address<12> loc=p50;
024- net address<13> loc=p58;
025- net address<14> loc=p60;
026- net ceb loc=p65;
027- net web loc=p62;
028- net oeb loc=p61;
029- net rgb<0> loc=p25;
030- net rgb<1> loc=p26;
031- net rgb<2> loc=p24;
032- net rgb<3> loc=p20;
033- net rgb<4> loc=p23;
034- net rgb<5> loc=p18;