in_ps: for i in 1 to NUMBER_OF_PORTS generate
 
      in_page_sw : process(i_reset, i_in_clk(i))
      begin
         if i_reset = '1' then
            in_page(i) <= '0';                                                                                
         elsif i_in_clk(i)'event and i_in_clk(i) = '1' then
            if i_page_sw(i) = '1' then
               in_page(i) <= not in_page(i);
            end if;
         end if;
      end process in_page_sw;
 
   end generate in_ps;