net rst   loc = p57;
net clk   loc = p80;
net snCar loc = p126;
net ewCar loc = p123;
net snRed loc = p205;
net snYellow loc = p203;
net snGreen  loc = p201;
net ewRed    loc = p206;
net ewYellow loc = p204;
net ewGreen  loc = p202;