-- hu
-- Update H using stream of weights

use work.pkg_sbs.all;

entity hu is
  
  port (
    clk, rstn : in  bit;
    cfg_hu     : in bit_vector(BW_HU_CFG -1 downto 0); -- Config
    ena_w      : in bit;         -- New weight
    is_ini     : in bit;         -- First vector (get w and h when ena)
    is_fst     : in bit;         -- Fist component in vector
    ena_ho     : out bit;        -- Signal a valid ho value
    wi         : in  real;       -- stream of weights
    hi         : in  real;       -- stream of state
    ho         : out real);      -- stream of states

end entity hu;



architecture rtlf of hu is

  signal ctr_hu    : bit_vector(BW_HU_CTR-1 downto 0);
  signal loc_h     : bit_vector(ADDR_H_MAX-1 downto 0); 
  signal eps       : real; 

begin  -- architecture rtlf

  i_hu_dp: entity work.hu_dp
    port map (
      clk    => clk,
      rstn   => rstn,
      eps    => eps,
      ctr_hu => ctr_hu,
      loc_h  => loc_h,
      wi     => wi,
      hi     => hi,
      ho     => ho);

  
  i_hu_ctr: entity work.hu_ctr
    port map (
      clk    => clk,
      rstn   => rstn,
      eps    => eps,      
      cfg_hu => cfg_hu,
      loc_h  => loc_h,
      ena_w  => ena_w,
      is_ini => is_ini,
      is_fst => is_fst,
      ena_ho => ena_ho,
      ctr_hu => ctr_hu);
  

end architecture rtlf;