diff --git a/libraries/dsp/wpfb/src/vhdl/wpfb_unit_dev.vhd b/libraries/dsp/wpfb/src/vhdl/wpfb_unit_dev.vhd
index 4654f302ed22f40cc0a64d73d9037e5b2dc2af7c..8ce1683177a1d182ac838b7688556aefcd3723ff 100644
--- a/libraries/dsp/wpfb/src/vhdl/wpfb_unit_dev.vhd
+++ b/libraries/dsp/wpfb/src/vhdl/wpfb_unit_dev.vhd
@@ -371,13 +371,13 @@ entity wpfb_unit_dev is
     dp_clk             : in  std_logic;
     mm_rst             : in  std_logic;
     mm_clk             : in  std_logic;
-    ram_fil_coefs_mosi : in  t_mem_mosi;
-    ram_fil_coefs_miso : out t_mem_miso := c_mem_miso_rst;
-    ram_st_sst_mosi    : in  t_mem_mosi;                   -- Subband statistics registers
-    ram_st_sst_miso    : out t_mem_miso := c_mem_miso_rst;
-    reg_bg_ctrl_mosi   : in  t_mem_mosi;
+    ram_fil_coefs_mosi : in  t_mem_mosi := c_mem_mosi_rst;
+    ram_fil_coefs_miso : out t_mem_miso;
+    ram_st_sst_mosi    : in  t_mem_mosi := c_mem_mosi_rst;  -- Subband statistics registers
+    ram_st_sst_miso    : out t_mem_miso;
+    reg_bg_ctrl_mosi   : in  t_mem_mosi := c_mem_mosi_rst;
     reg_bg_ctrl_miso   : out t_mem_miso;
-    ram_bg_data_mosi   : in  t_mem_mosi;
+    ram_bg_data_mosi   : in  t_mem_mosi := c_mem_mosi_rst;
     ram_bg_data_miso   : out t_mem_miso;
     in_sosi_arr        : in  t_dp_sosi_arr(g_wpfb.nof_wb_streams*g_wpfb.wb_factor-1 downto 0);
     fil_sosi_arr       : out t_dp_sosi_arr(g_wpfb.nof_wb_streams*g_wpfb.wb_factor-1 downto 0);