Page 433 - 3-2

else c_state <= n_state;
end

always@(c_state)

begin
case(c_state)

CAR:
begin

road_green <= 2'b11;
road_red <= 2'b00;

walk_green <= 2'b00;
walk_red <= 2'b11;

road_yellow <= 2'b00;
end

CHANGE :
begin

road_green <= 2'b00;
road_red <= 2'b00;

walk_green <= 2'b00;
walk_red <= 2'b11;

road_yellow <= 2'b11;
end

PERSON :
begin

road_green <= 2'b00;
road_red <= 2'b11;

walk_green <= 2'b11;
walk_red <= 2'b00;

road_yellow <= 2'b00;
end

default :
begin

road_green <= 2'b11;
road_red <= 2'b00;

walk_green <= 2'b00;
walk_red <= 2'b11;

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