diff --git a/libraries/base/dp/src/vhdl/dp_offload_rx.vhd b/libraries/base/dp/src/vhdl/dp_offload_rx.vhd
index c0e4d7d47443bc614d09241f9dabed3539125c0a..20f57ae4b2a8daa417120500f2e9ceeb9d99d7d7 100644
--- a/libraries/base/dp/src/vhdl/dp_offload_rx.vhd
+++ b/libraries/base/dp/src/vhdl/dp_offload_rx.vhd
@@ -42,7 +42,7 @@ ENTITY dp_offload_rx IS
     dp_rst             : IN  STD_LOGIC;
     dp_clk             : IN  STD_LOGIC; 
 
-    reg_hdr_dat_mosi   : IN  t_mem_mosi;
+    reg_hdr_dat_mosi   : IN  t_mem_mosi := c_mem_mosi_rst;
     reg_hdr_dat_miso   : OUT t_mem_miso;
 
     snk_in_arr         : IN  t_dp_sosi_arr(g_nof_streams-1 DOWNTO 0); 
diff --git a/libraries/base/dp/src/vhdl/dp_offload_tx.vhd b/libraries/base/dp/src/vhdl/dp_offload_tx.vhd
index 388d24fe6c71fae7185abe5f9ae7410548b6362e..d866ec6d643c83b8f518008471cb37b2bf45ba6f 100644
--- a/libraries/base/dp/src/vhdl/dp_offload_tx.vhd
+++ b/libraries/base/dp/src/vhdl/dp_offload_tx.vhd
@@ -61,10 +61,10 @@ ENTITY dp_offload_tx IS
     dp_rst               : IN  STD_LOGIC;
     dp_clk               : IN  STD_LOGIC;  
 
-    reg_mosi             : IN  t_mem_mosi;
+    reg_mosi             : IN  t_mem_mosi := c_mem_mosi_rst;
     reg_miso             : OUT t_mem_miso;
 
-    reg_hdr_dat_mosi     : IN  t_mem_mosi;
+    reg_hdr_dat_mosi     : IN  t_mem_mosi := c_mem_mosi_rst;
     reg_hdr_dat_miso     : OUT t_mem_miso;
 
     snk_in_arr           : IN  t_dp_sosi_arr(g_nof_streams-1 DOWNTO 0);