求解eda分频器的问题

ENTITY clkdiv IS
PORT(clk : IN STD_LOGIC;
clk_div6 : OUT STD_LOGIC);
END clk_div;
ARCHITECTURE rtl OF clk_div IS
SIGNAL count : STD_LOGIC_VECTOR(1 DOWNTO 0);
SIGNAL clk_temp : STD_LOGIC;
BEGIN
PROCESS(clk)
BEGIN
IF (clk’event AND clk=’1’) THEN
IF(count=”10”) THEN
count <= (OTHERS =>’0’);
clk_temp <=NOT clk_temp;
ELSE
count <= count +1;
END IF ;
END IF ;
END PROCESS;
clk_div6 <= clk_temp;
END rtl;
哪一段程序实现产生占空比是1：1的分频信号?还有哪里看他实现了多少分频?麻烦解释一下什么是分频器吧大神们