diff --git a/libraries/base/diag/src/vhdl/mms_diag_rx_seq.vhd b/libraries/base/diag/src/vhdl/mms_diag_rx_seq.vhd
index c631c171166c05abdd7e0684faf8a5b664fbf752..0d3098db8a33b893bc7627c2bea61301a2b751d6 100644
--- a/libraries/base/diag/src/vhdl/mms_diag_rx_seq.vhd
+++ b/libraries/base/diag/src/vhdl/mms_diag_rx_seq.vhd
@@ -143,10 +143,10 @@ ARCHITECTURE str OF mms_diag_rx_seq IS
                                  ( field_name_pad("result"),    "RO",        2, field_default(0) ),   -- [1] = result[1:0]  = res_val_n & res_ok_n
                                  ( field_name_pad("rx_cnt"),    "RO", c_word_w, field_default(0) ),   -- [2]
                                  ( field_name_pad("rx_sample"), "RO", c_word_w, field_default(0) ),   -- [3]
-                                 ( field_name_pad("step_0"),    "RW", c_word_w, field_default(1) ),   -- [4] = diag_steps_arr[0]
-                                 ( field_name_pad("step_1"),    "RW", c_word_w, field_default(1) ),   -- [5] = diag_steps_arr[1]
-                                 ( field_name_pad("step_2"),    "RW", c_word_w, field_default(1) ),   -- [6] = diag_steps_arr[2]
-                                 ( field_name_pad("step_3"),    "RW", c_word_w, field_default(1) ));  -- [7] = diag_steps_arr[3], c_diag_seq_rx_reg_nof_steps = 4
+                                 ( field_name_pad("step_0"),    "RW", c_word_w, field_default(0) ),   -- [4] = diag_steps_arr[0]
+                                 ( field_name_pad("step_1"),    "RW", c_word_w, field_default(0) ),   -- [5] = diag_steps_arr[1]
+                                 ( field_name_pad("step_2"),    "RW", c_word_w, field_default(0) ),   -- [6] = diag_steps_arr[2]
+                                 ( field_name_pad("step_3"),    "RW", c_word_w, field_default(0) ));  -- [7] = diag_steps_arr[3], c_diag_seq_rx_reg_nof_steps = 4
                                   
   CONSTANT c_reg_slv_w   : NATURAL := c_mm_reg.nof_dat*c_mm_reg.dat_w;
   
@@ -252,7 +252,7 @@ BEGIN
     diag_sel_arr(I)  <= ctrl_reg_arr(I)(1);  -- address 0, data bit [1]
     
     gen_diag_steps_2arr : FOR J IN 0 TO g_nof_steps-1 GENERATE
-      diag_steps_2arr(I)(J) <= TO_UINT(ctrl_reg_arr(I)(g_seq_dat_w-1 + (c_nof_steps_wi+J)*c_word_w DOWNTO (c_nof_steps_wi+J)*c_word_w));  -- address 4, 5, 6, 7
+      diag_steps_2arr(I)(J) <= TO_SINT(ctrl_reg_arr(I)(g_seq_dat_w-1 + (c_nof_steps_wi+J)*c_word_w DOWNTO (c_nof_steps_wi+J)*c_word_w));  -- address 4, 5, 6, 7
     END GENERATE;
     
     -- . read stat_reg_arr