diff --git a/example/520N_MX/fpga_10g/rtl/fpga_core.v b/example/520N_MX/fpga_10g/rtl/fpga_core.v
index 7011d5470..6607b8a1c 100644
--- a/example/520N_MX/fpga_10g/rtl/fpga_core.v
+++ b/example/520N_MX/fpga_10g/rtl/fpga_core.v
@@ -497,7 +497,9 @@ eth_mac_10g_fifo_inst (
     .rx_fifo_bad_frame(),
     .rx_fifo_good_frame(),
 
-    .cfg_ifg(8'd12)
+    .cfg_ifg(8'd12),
+    .cfg_tx_enable(1'b1),
+    .cfg_rx_enable(1'b1)
 );
 
 eth_axis_rx #(
diff --git a/example/ADM_PCIE_9V3/fpga_25g/rtl/fpga_core.v b/example/ADM_PCIE_9V3/fpga_25g/rtl/fpga_core.v
index 5cacb65cc..07b0570d6 100644
--- a/example/ADM_PCIE_9V3/fpga_25g/rtl/fpga_core.v
+++ b/example/ADM_PCIE_9V3/fpga_25g/rtl/fpga_core.v
@@ -419,7 +419,9 @@ eth_mac_10g_fifo_inst (
     .rx_fifo_bad_frame(),
     .rx_fifo_good_frame(),
 
-    .cfg_ifg(8'd12)
+    .cfg_ifg(8'd12),
+    .cfg_tx_enable(1'b1),
+    .cfg_rx_enable(1'b1)
 );
 
 eth_axis_rx #(
diff --git a/example/ATLYS/fpga/rtl/fpga_core.v b/example/ATLYS/fpga/rtl/fpga_core.v
index 5ef8fa732..589d89ae3 100644
--- a/example/ATLYS/fpga/rtl/fpga_core.v
+++ b/example/ATLYS/fpga/rtl/fpga_core.v
@@ -356,7 +356,9 @@ eth_mac_inst (
     .rx_fifo_good_frame(),
     .speed(),
 
-    .cfg_ifg(8'd12)
+    .cfg_ifg(8'd12),
+    .cfg_tx_enable(1'b1),
+    .cfg_rx_enable(1'b1)
 );
 
 eth_axis_rx
diff --git a/example/AU200/fpga_25g/rtl/fpga_core.v b/example/AU200/fpga_25g/rtl/fpga_core.v
index 916766566..27d8e5cd5 100644
--- a/example/AU200/fpga_25g/rtl/fpga_core.v
+++ b/example/AU200/fpga_25g/rtl/fpga_core.v
@@ -422,7 +422,9 @@ eth_mac_10g_fifo_inst (
     .rx_fifo_bad_frame(),
     .rx_fifo_good_frame(),
 
-    .cfg_ifg(8'd12)
+    .cfg_ifg(8'd12),
+    .cfg_tx_enable(1'b1),
+    .cfg_rx_enable(1'b1)
 );
 
 eth_axis_rx #(
diff --git a/example/AU250/fpga_25g/rtl/fpga_core.v b/example/AU250/fpga_25g/rtl/fpga_core.v
index 916766566..27d8e5cd5 100644
--- a/example/AU250/fpga_25g/rtl/fpga_core.v
+++ b/example/AU250/fpga_25g/rtl/fpga_core.v
@@ -422,7 +422,9 @@ eth_mac_10g_fifo_inst (
     .rx_fifo_bad_frame(),
     .rx_fifo_good_frame(),
 
-    .cfg_ifg(8'd12)
+    .cfg_ifg(8'd12),
+    .cfg_tx_enable(1'b1),
+    .cfg_rx_enable(1'b1)
 );
 
 eth_axis_rx #(
diff --git a/example/AU280/fpga_25g/rtl/fpga_core.v b/example/AU280/fpga_25g/rtl/fpga_core.v
index 1ae8f5fc1..ee706700d 100644
--- a/example/AU280/fpga_25g/rtl/fpga_core.v
+++ b/example/AU280/fpga_25g/rtl/fpga_core.v
@@ -407,7 +407,9 @@ eth_mac_10g_fifo_inst (
     .rx_fifo_bad_frame(),
     .rx_fifo_good_frame(),
 
-    .cfg_ifg(8'd12)
+    .cfg_ifg(8'd12),
+    .cfg_tx_enable(1'b1),
+    .cfg_rx_enable(1'b1)
 );
 
 eth_axis_rx #(
diff --git a/example/AU50/fpga_25g/rtl/fpga_core.v b/example/AU50/fpga_25g/rtl/fpga_core.v
index 4730761a5..30dff9a3d 100644
--- a/example/AU50/fpga_25g/rtl/fpga_core.v
+++ b/example/AU50/fpga_25g/rtl/fpga_core.v
@@ -374,7 +374,9 @@ eth_mac_10g_fifo_inst (
     .rx_fifo_bad_frame(),
     .rx_fifo_good_frame(),
 
-    .cfg_ifg(8'd12)
+    .cfg_ifg(8'd12),
+    .cfg_tx_enable(1'b1),
+    .cfg_rx_enable(1'b1)
 );
 
 eth_axis_rx #(
diff --git a/example/Arty/fpga/rtl/fpga_core.v b/example/Arty/fpga/rtl/fpga_core.v
index e9629f475..2b4957765 100644
--- a/example/Arty/fpga/rtl/fpga_core.v
+++ b/example/Arty/fpga/rtl/fpga_core.v
@@ -363,7 +363,9 @@ eth_mac_inst (
     .rx_fifo_bad_frame(),
     .rx_fifo_good_frame(),
 
-    .cfg_ifg(8'd12)
+    .cfg_ifg(8'd12),
+    .cfg_tx_enable(1'b1),
+    .cfg_rx_enable(1'b1)
 );
 
 eth_axis_rx
diff --git a/example/C10LP/fpga/rtl/fpga_core.v b/example/C10LP/fpga/rtl/fpga_core.v
index ea2f8f3ff..11c880d0e 100644
--- a/example/C10LP/fpga/rtl/fpga_core.v
+++ b/example/C10LP/fpga/rtl/fpga_core.v
@@ -340,7 +340,9 @@ eth_mac_inst (
     .rx_fifo_good_frame(),
     .speed(),
 
-    .cfg_ifg(8'd12)
+    .cfg_ifg(8'd12),
+    .cfg_tx_enable(1'b1),
+    .cfg_rx_enable(1'b1)
 );
 
 eth_axis_rx
diff --git a/example/DE2-115/fpga/rtl/fpga_core.v b/example/DE2-115/fpga/rtl/fpga_core.v
index 0934b1ea6..bcc99b837 100644
--- a/example/DE2-115/fpga/rtl/fpga_core.v
+++ b/example/DE2-115/fpga/rtl/fpga_core.v
@@ -448,7 +448,9 @@ eth_mac_inst (
     .rx_fifo_good_frame(),
     .speed(),
 
-    .cfg_ifg(8'd12)
+    .cfg_ifg(8'd12),
+    .cfg_tx_enable(1'b1),
+    .cfg_rx_enable(1'b1)
 );
 
 eth_axis_rx
diff --git a/example/DE5-Net/fpga/rtl/fpga_core.v b/example/DE5-Net/fpga/rtl/fpga_core.v
index b75ec1009..39f61e299 100644
--- a/example/DE5-Net/fpga/rtl/fpga_core.v
+++ b/example/DE5-Net/fpga/rtl/fpga_core.v
@@ -372,7 +372,9 @@ eth_mac_10g_fifo_inst (
     .rx_fifo_bad_frame(),
     .rx_fifo_good_frame(),
 
-    .cfg_ifg(8'd12)
+    .cfg_ifg(8'd12),
+    .cfg_tx_enable(1'b1),
+    .cfg_rx_enable(1'b1)
 );
 
 eth_axis_rx #(
diff --git a/example/ExaNIC_X10/fpga/rtl/fpga_core.v b/example/ExaNIC_X10/fpga/rtl/fpga_core.v
index 637cf2890..f66c392b1 100644
--- a/example/ExaNIC_X10/fpga/rtl/fpga_core.v
+++ b/example/ExaNIC_X10/fpga/rtl/fpga_core.v
@@ -352,7 +352,9 @@ eth_mac_10g_fifo_inst (
     .rx_fifo_bad_frame(),
     .rx_fifo_good_frame(),
 
-    .cfg_ifg(8'd12)
+    .cfg_ifg(8'd12),
+    .cfg_tx_enable(1'b1),
+    .cfg_rx_enable(1'b1)
 );
 
 eth_axis_rx #(
diff --git a/example/ExaNIC_X25/fpga_25g/rtl/fpga_core.v b/example/ExaNIC_X25/fpga_25g/rtl/fpga_core.v
index 637cf2890..f66c392b1 100644
--- a/example/ExaNIC_X25/fpga_25g/rtl/fpga_core.v
+++ b/example/ExaNIC_X25/fpga_25g/rtl/fpga_core.v
@@ -352,7 +352,9 @@ eth_mac_10g_fifo_inst (
     .rx_fifo_bad_frame(),
     .rx_fifo_good_frame(),
 
-    .cfg_ifg(8'd12)
+    .cfg_ifg(8'd12),
+    .cfg_tx_enable(1'b1),
+    .cfg_rx_enable(1'b1)
 );
 
 eth_axis_rx #(
diff --git a/example/HTG640/fpga/rtl/fpga_core.v b/example/HTG640/fpga/rtl/fpga_core.v
index 79bec3ee2..d2d7787c5 100644
--- a/example/HTG640/fpga/rtl/fpga_core.v
+++ b/example/HTG640/fpga/rtl/fpga_core.v
@@ -516,7 +516,9 @@ eth_mac_10g_fifo_inst (
     .rx_fifo_bad_frame(),
     .rx_fifo_good_frame(),
 
-    .cfg_ifg(8'd12)
+    .cfg_ifg(8'd12),
+    .cfg_tx_enable(1'b1),
+    .cfg_rx_enable(1'b1)
 );
 
 eth_axis_rx #(
diff --git a/example/HTG640/fpga_cxpt16/rtl/fpga_core.v b/example/HTG640/fpga_cxpt16/rtl/fpga_core.v
index ff3c0ee58..82185aac0 100644
--- a/example/HTG640/fpga_cxpt16/rtl/fpga_core.v
+++ b/example/HTG640/fpga_cxpt16/rtl/fpga_core.v
@@ -308,7 +308,9 @@ eth_mac_fifo_inst (
     .rx_fifo_overflow(),
     .rx_fifo_bad_frame(),
     .rx_fifo_good_frame(),
-    .cfg_ifg(8'd12)
+    .cfg_ifg(8'd12),
+    .cfg_tx_enable(1'b0),
+    .cfg_rx_enable(1'b1)
 );
 
 eth_axis_rx #(
diff --git a/example/HTG9200/fpga_25g/rtl/fpga_core.v b/example/HTG9200/fpga_25g/rtl/fpga_core.v
index 324804cb4..1bd42ad42 100644
--- a/example/HTG9200/fpga_25g/rtl/fpga_core.v
+++ b/example/HTG9200/fpga_25g/rtl/fpga_core.v
@@ -715,7 +715,9 @@ eth_mac_10g_fifo_inst (
     .rx_fifo_bad_frame(),
     .rx_fifo_good_frame(),
 
-    .cfg_ifg(8'd12)
+    .cfg_ifg(8'd12),
+    .cfg_tx_enable(1'b1),
+    .cfg_rx_enable(1'b1)
 );
 
 eth_axis_rx #(
diff --git a/example/HTG9200/fpga_fmc_htg_6qsfp_25g/rtl/fpga_core.v b/example/HTG9200/fpga_fmc_htg_6qsfp_25g/rtl/fpga_core.v
index a2b77fd0d..aa80fb279 100644
--- a/example/HTG9200/fpga_fmc_htg_6qsfp_25g/rtl/fpga_core.v
+++ b/example/HTG9200/fpga_fmc_htg_6qsfp_25g/rtl/fpga_core.v
@@ -967,7 +967,9 @@ eth_mac_10g_fifo_inst (
     .rx_fifo_bad_frame(),
     .rx_fifo_good_frame(),
 
-    .cfg_ifg(8'd12)
+    .cfg_ifg(8'd12),
+    .cfg_tx_enable(1'b1),
+    .cfg_rx_enable(1'b1)
 );
 
 eth_axis_rx #(
diff --git a/example/KC705/fpga_gmii/rtl/fpga_core.v b/example/KC705/fpga_gmii/rtl/fpga_core.v
index 5cf47ee7f..41d39ee2e 100644
--- a/example/KC705/fpga_gmii/rtl/fpga_core.v
+++ b/example/KC705/fpga_gmii/rtl/fpga_core.v
@@ -360,7 +360,9 @@ eth_mac_inst (
     .rx_fifo_good_frame(),
     .speed(),
 
-    .cfg_ifg(8'd12)
+    .cfg_ifg(8'd12),
+    .cfg_tx_enable(1'b1),
+    .cfg_rx_enable(1'b1)
 );
 
 eth_axis_rx
diff --git a/example/KC705/fpga_rgmii/rtl/fpga_core.v b/example/KC705/fpga_rgmii/rtl/fpga_core.v
index 78ba7980f..3d3e22ccb 100644
--- a/example/KC705/fpga_rgmii/rtl/fpga_core.v
+++ b/example/KC705/fpga_rgmii/rtl/fpga_core.v
@@ -357,7 +357,9 @@ eth_mac_inst (
     .rx_fifo_good_frame(),
     .speed(),
 
-    .cfg_ifg(8'd12)
+    .cfg_ifg(8'd12),
+    .cfg_tx_enable(1'b1),
+    .cfg_rx_enable(1'b1)
 );
 
 eth_axis_rx
diff --git a/example/KC705/fpga_sgmii/rtl/fpga_core.v b/example/KC705/fpga_sgmii/rtl/fpga_core.v
index e688c77ec..12747a77c 100644
--- a/example/KC705/fpga_sgmii/rtl/fpga_core.v
+++ b/example/KC705/fpga_sgmii/rtl/fpga_core.v
@@ -357,7 +357,9 @@ eth_mac_inst (
     .rx_fifo_bad_frame(),
     .rx_fifo_good_frame(),
 
-    .cfg_ifg(8'd12)
+    .cfg_ifg(8'd12),
+    .cfg_tx_enable(1'b1),
+    .cfg_rx_enable(1'b1)
 );
 
 eth_axis_rx
diff --git a/example/ML605/fpga_gmii/rtl/fpga_core.v b/example/ML605/fpga_gmii/rtl/fpga_core.v
index a9d79878e..682c4ddc8 100644
--- a/example/ML605/fpga_gmii/rtl/fpga_core.v
+++ b/example/ML605/fpga_gmii/rtl/fpga_core.v
@@ -369,7 +369,9 @@ eth_mac_inst (
     .rx_fifo_good_frame(),
     .speed(),
 
-    .cfg_ifg(8'd12)
+    .cfg_ifg(8'd12),
+    .cfg_tx_enable(1'b1),
+    .cfg_rx_enable(1'b1)
 );
 
 eth_axis_rx
diff --git a/example/ML605/fpga_rgmii/rtl/fpga_core.v b/example/ML605/fpga_rgmii/rtl/fpga_core.v
index 44f99672f..1d94a8893 100644
--- a/example/ML605/fpga_rgmii/rtl/fpga_core.v
+++ b/example/ML605/fpga_rgmii/rtl/fpga_core.v
@@ -366,7 +366,9 @@ eth_mac_inst (
     .rx_fifo_good_frame(),
     .speed(),
 
-    .cfg_ifg(8'd12)
+    .cfg_ifg(8'd12),
+    .cfg_tx_enable(1'b1),
+    .cfg_rx_enable(1'b1)
 );
 
 eth_axis_rx
diff --git a/example/ML605/fpga_sgmii/rtl/fpga_core.v b/example/ML605/fpga_sgmii/rtl/fpga_core.v
index be8a81da5..ea568efc7 100644
--- a/example/ML605/fpga_sgmii/rtl/fpga_core.v
+++ b/example/ML605/fpga_sgmii/rtl/fpga_core.v
@@ -366,7 +366,9 @@ eth_mac_inst (
     .rx_fifo_bad_frame(),
     .rx_fifo_good_frame(),
 
-    .cfg_ifg(8'd12)
+    .cfg_ifg(8'd12),
+    .cfg_tx_enable(1'b1),
+    .cfg_rx_enable(1'b1)
 );
 
 eth_axis_rx
diff --git a/example/NetFPGA_SUME/fpga/rtl/fpga_core.v b/example/NetFPGA_SUME/fpga/rtl/fpga_core.v
index 5e11592ba..a63719c31 100644
--- a/example/NetFPGA_SUME/fpga/rtl/fpga_core.v
+++ b/example/NetFPGA_SUME/fpga/rtl/fpga_core.v
@@ -385,7 +385,9 @@ eth_mac_10g_fifo_inst (
     .rx_fifo_bad_frame(),
     .rx_fifo_good_frame(),
 
-    .cfg_ifg(8'd12)
+    .cfg_ifg(8'd12),
+    .cfg_tx_enable(1'b1),
+    .cfg_rx_enable(1'b1)
 );
 
 eth_axis_rx #(
diff --git a/example/NexysVideo/fpga/rtl/fpga_core.v b/example/NexysVideo/fpga/rtl/fpga_core.v
index 63b5feff5..6deb022af 100644
--- a/example/NexysVideo/fpga/rtl/fpga_core.v
+++ b/example/NexysVideo/fpga/rtl/fpga_core.v
@@ -355,7 +355,9 @@ eth_mac_inst (
     .rx_fifo_good_frame(),
     .speed(),
 
-    .cfg_ifg(8'd12)
+    .cfg_ifg(8'd12),
+    .cfg_tx_enable(1'b1),
+    .cfg_rx_enable(1'b1)
 );
 
 eth_axis_rx
diff --git a/example/RV901T/fpga/rtl/fpga_core.v b/example/RV901T/fpga/rtl/fpga_core.v
index 0e1242759..b7970e083 100644
--- a/example/RV901T/fpga/rtl/fpga_core.v
+++ b/example/RV901T/fpga/rtl/fpga_core.v
@@ -344,7 +344,9 @@ eth_mac_inst (
     .rx_fifo_good_frame(),
     .speed(),
 
-    .cfg_ifg(8'd12)
+    .cfg_ifg(8'd12),
+    .cfg_tx_enable(1'b1),
+    .cfg_rx_enable(1'b1)
 );
 
 assign phy_1_tx_clk = 1'b0;
diff --git a/example/S10MX_DK/fpga_10g/rtl/fpga_core.v b/example/S10MX_DK/fpga_10g/rtl/fpga_core.v
index 496164892..517076420 100644
--- a/example/S10MX_DK/fpga_10g/rtl/fpga_core.v
+++ b/example/S10MX_DK/fpga_10g/rtl/fpga_core.v
@@ -411,7 +411,9 @@ eth_mac_10g_fifo_inst (
     .rx_fifo_bad_frame(),
     .rx_fifo_good_frame(),
 
-    .cfg_ifg(8'd12)
+    .cfg_ifg(8'd12),
+    .cfg_tx_enable(1'b1),
+    .cfg_rx_enable(1'b1)
 );
 
 eth_axis_rx #(
diff --git a/example/VCU108/fpga_10g/rtl/fpga_core.v b/example/VCU108/fpga_10g/rtl/fpga_core.v
index 63266daa9..b35139a71 100644
--- a/example/VCU108/fpga_10g/rtl/fpga_core.v
+++ b/example/VCU108/fpga_10g/rtl/fpga_core.v
@@ -418,7 +418,9 @@ eth_mac_10g_fifo_inst (
     .rx_fifo_bad_frame(),
     .rx_fifo_good_frame(),
 
-    .cfg_ifg(8'd12)
+    .cfg_ifg(8'd12),
+    .cfg_tx_enable(1'b1),
+    .cfg_rx_enable(1'b1)
 );
 
 // 1G interface for debugging
@@ -497,7 +499,9 @@ eth_mac_1g_inst (
     .rx_fifo_bad_frame(),
     .rx_fifo_good_frame(),
 
-    .cfg_ifg(8'd12)
+    .cfg_ifg(8'd12),
+    .cfg_tx_enable(1'b1),
+    .cfg_rx_enable(1'b1)
 );
 
 axis_adapter #(
diff --git a/example/VCU108/fpga_1g/rtl/fpga_core.v b/example/VCU108/fpga_1g/rtl/fpga_core.v
index 52ad016c8..03499ac55 100644
--- a/example/VCU108/fpga_1g/rtl/fpga_core.v
+++ b/example/VCU108/fpga_1g/rtl/fpga_core.v
@@ -357,7 +357,9 @@ eth_mac_inst (
     .rx_fifo_bad_frame(),
     .rx_fifo_good_frame(),
 
-    .cfg_ifg(8'd12)
+    .cfg_ifg(8'd12),
+    .cfg_tx_enable(1'b1),
+    .cfg_rx_enable(1'b1)
 );
 
 eth_axis_rx
diff --git a/example/VCU118/fpga_1g/rtl/fpga_core.v b/example/VCU118/fpga_1g/rtl/fpga_core.v
index 52ad016c8..03499ac55 100644
--- a/example/VCU118/fpga_1g/rtl/fpga_core.v
+++ b/example/VCU118/fpga_1g/rtl/fpga_core.v
@@ -357,7 +357,9 @@ eth_mac_inst (
     .rx_fifo_bad_frame(),
     .rx_fifo_good_frame(),
 
-    .cfg_ifg(8'd12)
+    .cfg_ifg(8'd12),
+    .cfg_tx_enable(1'b1),
+    .cfg_rx_enable(1'b1)
 );
 
 eth_axis_rx
diff --git a/example/VCU118/fpga_25g/rtl/fpga_core.v b/example/VCU118/fpga_25g/rtl/fpga_core.v
index 1d1ea1729..91691226d 100644
--- a/example/VCU118/fpga_25g/rtl/fpga_core.v
+++ b/example/VCU118/fpga_25g/rtl/fpga_core.v
@@ -459,7 +459,9 @@ eth_mac_10g_fifo_inst (
     .rx_fifo_bad_frame(),
     .rx_fifo_good_frame(),
 
-    .cfg_ifg(8'd12)
+    .cfg_ifg(8'd12),
+    .cfg_tx_enable(1'b1),
+    .cfg_rx_enable(1'b1)
 );
 
 // 1G interface for debugging
@@ -538,7 +540,9 @@ eth_mac_1g_inst (
     .rx_fifo_bad_frame(),
     .rx_fifo_good_frame(),
 
-    .cfg_ifg(8'd12)
+    .cfg_ifg(8'd12),
+    .cfg_tx_enable(1'b1),
+    .cfg_rx_enable(1'b1)
 );
 
 axis_adapter #(
diff --git a/example/VCU118/fpga_fmc_htg_6qsfp_25g/rtl/fpga_core.v b/example/VCU118/fpga_fmc_htg_6qsfp_25g/rtl/fpga_core.v
index d3b97112a..ac5e91e97 100644
--- a/example/VCU118/fpga_fmc_htg_6qsfp_25g/rtl/fpga_core.v
+++ b/example/VCU118/fpga_fmc_htg_6qsfp_25g/rtl/fpga_core.v
@@ -709,7 +709,9 @@ eth_mac_10g_fifo_inst (
     .rx_fifo_bad_frame(),
     .rx_fifo_good_frame(),
 
-    .cfg_ifg(8'd12)
+    .cfg_ifg(8'd12),
+    .cfg_tx_enable(1'b1),
+    .cfg_rx_enable(1'b1)
 );
 
 // 1G interface for debugging
@@ -788,7 +790,9 @@ eth_mac_1g_inst (
     .rx_fifo_bad_frame(),
     .rx_fifo_good_frame(),
 
-    .cfg_ifg(8'd12)
+    .cfg_ifg(8'd12),
+    .cfg_tx_enable(1'b1),
+    .cfg_rx_enable(1'b1)
 );
 
 axis_adapter #(
diff --git a/example/VCU1525/fpga_25g/rtl/fpga_core.v b/example/VCU1525/fpga_25g/rtl/fpga_core.v
index 916766566..27d8e5cd5 100644
--- a/example/VCU1525/fpga_25g/rtl/fpga_core.v
+++ b/example/VCU1525/fpga_25g/rtl/fpga_core.v
@@ -422,7 +422,9 @@ eth_mac_10g_fifo_inst (
     .rx_fifo_bad_frame(),
     .rx_fifo_good_frame(),
 
-    .cfg_ifg(8'd12)
+    .cfg_ifg(8'd12),
+    .cfg_tx_enable(1'b1),
+    .cfg_rx_enable(1'b1)
 );
 
 eth_axis_rx #(
diff --git a/example/ZCU102/fpga/rtl/fpga_core.v b/example/ZCU102/fpga/rtl/fpga_core.v
index e992b8c05..cea742245 100644
--- a/example/ZCU102/fpga/rtl/fpga_core.v
+++ b/example/ZCU102/fpga/rtl/fpga_core.v
@@ -384,7 +384,9 @@ eth_mac_10g_fifo_inst (
     .rx_fifo_bad_frame(),
     .rx_fifo_good_frame(),
 
-    .cfg_ifg(8'd12)
+    .cfg_ifg(8'd12),
+    .cfg_tx_enable(1'b1),
+    .cfg_rx_enable(1'b1)
 );
 
 eth_axis_rx #(
diff --git a/example/ZCU106/fpga/rtl/fpga_core.v b/example/ZCU106/fpga/rtl/fpga_core.v
index a70357d23..d5625c213 100644
--- a/example/ZCU106/fpga/rtl/fpga_core.v
+++ b/example/ZCU106/fpga/rtl/fpga_core.v
@@ -364,7 +364,9 @@ eth_mac_10g_fifo_inst (
     .rx_fifo_bad_frame(),
     .rx_fifo_good_frame(),
 
-    .cfg_ifg(8'd12)
+    .cfg_ifg(8'd12),
+    .cfg_tx_enable(1'b1),
+    .cfg_rx_enable(1'b1)
 );
 
 eth_axis_rx #(
diff --git a/example/fb2CG/fpga_25g/rtl/fpga_core.v b/example/fb2CG/fpga_25g/rtl/fpga_core.v
index 560e993dd..23a703e02 100644
--- a/example/fb2CG/fpga_25g/rtl/fpga_core.v
+++ b/example/fb2CG/fpga_25g/rtl/fpga_core.v
@@ -420,7 +420,9 @@ eth_mac_10g_fifo_inst (
     .rx_fifo_bad_frame(),
     .rx_fifo_good_frame(),
 
-    .cfg_ifg(8'd12)
+    .cfg_ifg(8'd12),
+    .cfg_tx_enable(1'b1),
+    .cfg_rx_enable(1'b1)
 );
 
 eth_axis_rx #(
diff --git a/rtl/axis_baser_rx_64.v b/rtl/axis_baser_rx_64.v
index e22b9986f..714c9194a 100644
--- a/rtl/axis_baser_rx_64.v
+++ b/rtl/axis_baser_rx_64.v
@@ -66,6 +66,11 @@ module axis_baser_rx_64 #
      */
     input  wire [PTP_TS_WIDTH-1:0]  ptp_ts,
 
+    /*
+     * Configuration
+     */
+    input  wire                     cfg_rx_enable,
+
     /*
      * Status
      */
@@ -285,7 +290,7 @@ always @* begin
                 m_axis_tuser_next[1 +: PTP_TS_WIDTH] = (PTP_TS_WIDTH != 96 || ptp_ts_borrow_reg) ? ptp_ts_reg : ptp_ts_adj_reg;
             end
 
-            if (input_type_d1 == INPUT_TYPE_START_0) begin
+            if (input_type_d1 == INPUT_TYPE_START_0 && cfg_rx_enable) begin
                 // start condition
                 reset_crc = 1'b0;
                 state_next = STATE_PAYLOAD;
diff --git a/rtl/axis_baser_tx_64.v b/rtl/axis_baser_tx_64.v
index d878db11b..234b85dd2 100644
--- a/rtl/axis_baser_tx_64.v
+++ b/rtl/axis_baser_tx_64.v
@@ -80,6 +80,7 @@ module axis_baser_tx_64 #
      * Configuration
      */
     input  wire [7:0]                cfg_ifg,
+    input  wire                      cfg_tx_enable,
 
     /*
      * Status
@@ -397,7 +398,7 @@ always @* begin
             s_tdata_next = s_axis_tdata_masked;
             s_empty_next = keep2empty(s_axis_tkeep);
 
-            if (s_axis_tvalid) begin
+            if (s_axis_tvalid && cfg_tx_enable) begin
                 // XGMII start and preamble
                 if (swap_lanes_reg) begin
                     // lanes swapped
diff --git a/rtl/axis_gmii_rx.v b/rtl/axis_gmii_rx.v
index 64ff1d77f..9b4f30d66 100644
--- a/rtl/axis_gmii_rx.v
+++ b/rtl/axis_gmii_rx.v
@@ -68,6 +68,11 @@ module axis_gmii_rx #
     input  wire                     clk_enable,
     input  wire                     mii_select,
 
+    /*
+     * Configuration
+     */
+    input  wire                     cfg_rx_enable,
+
     /*
      * Status
      */
@@ -186,7 +191,7 @@ always @* begin
                 // idle state - wait for packet
                 reset_crc = 1'b1;
 
-                if (gmii_rx_dv_d4 && !gmii_rx_er_d4 && gmii_rxd_d4 == ETH_SFD) begin
+                if (gmii_rx_dv_d4 && !gmii_rx_er_d4 && gmii_rxd_d4 == ETH_SFD && cfg_rx_enable) begin
                     state_next = STATE_PAYLOAD;
                 end else begin
                     state_next = STATE_IDLE;
diff --git a/rtl/axis_gmii_tx.v b/rtl/axis_gmii_tx.v
index d24c81a7d..674589324 100644
--- a/rtl/axis_gmii_tx.v
+++ b/rtl/axis_gmii_tx.v
@@ -81,6 +81,7 @@ module axis_gmii_tx #
      * Configuration
      */
     input  wire [7:0]                cfg_ifg,
+    input  wire                      cfg_tx_enable,
 
     /*
      * Status
@@ -240,7 +241,7 @@ always @* begin
 
                 frame_min_count_next = MIN_FRAME_LENGTH-4-1;
 
-                if (s_axis_tvalid) begin
+                if (s_axis_tvalid && cfg_tx_enable) begin
                     mii_odd_next = 1'b1;
                     gmii_txd_next = ETH_PRE;
                     gmii_tx_en_next = 1'b1;
diff --git a/rtl/axis_xgmii_rx_32.v b/rtl/axis_xgmii_rx_32.v
index 6a5aa92f5..0241ad569 100644
--- a/rtl/axis_xgmii_rx_32.v
+++ b/rtl/axis_xgmii_rx_32.v
@@ -64,6 +64,11 @@ module axis_xgmii_rx_32 #
      */
     input  wire [PTP_TS_WIDTH-1:0]  ptp_ts,
 
+    /*
+     * Configuration
+     */
+    input  wire                     cfg_rx_enable,
+
     /*
      * Status
      */
@@ -244,7 +249,7 @@ always @* begin
             // idle state - wait for packet
             reset_crc = 1'b1;
 
-            if (xgmii_start_d2) begin
+            if (xgmii_start_d2 && cfg_rx_enable) begin
                 // start condition
                 if (control_masked) begin
                     // control or error characters in first data word
diff --git a/rtl/axis_xgmii_rx_64.v b/rtl/axis_xgmii_rx_64.v
index 8d3f8b9db..32856b368 100644
--- a/rtl/axis_xgmii_rx_64.v
+++ b/rtl/axis_xgmii_rx_64.v
@@ -66,6 +66,11 @@ module axis_xgmii_rx_64 #
      */
     input  wire [PTP_TS_WIDTH-1:0]  ptp_ts,
 
+    /*
+     * Configuration
+     */
+    input  wire                     cfg_rx_enable,
+
     /*
      * Status
      */
@@ -270,7 +275,7 @@ always @* begin
             // idle state - wait for packet
             reset_crc = 1'b1;
 
-            if (xgmii_start_d1) begin
+            if (xgmii_start_d1 && cfg_rx_enable) begin
                 // start condition
 
                 if (PTP_TS_ENABLE) begin
diff --git a/rtl/axis_xgmii_tx_32.v b/rtl/axis_xgmii_tx_32.v
index ef6781b5a..a5933061a 100644
--- a/rtl/axis_xgmii_tx_32.v
+++ b/rtl/axis_xgmii_tx_32.v
@@ -78,6 +78,7 @@ module axis_xgmii_tx_32 #
      * Configuration
      */
     input  wire [7:0]                cfg_ifg,
+    input  wire                      cfg_tx_enable,
 
     /*
      * Status
@@ -308,7 +309,7 @@ always @* begin
             s_tdata_next = s_axis_tdata_masked;
             s_empty_next = keep2empty(s_axis_tkeep);
 
-            if (s_axis_tvalid) begin
+            if (s_axis_tvalid && cfg_tx_enable) begin
                 // XGMII start and preamble
                 xgmii_txd_next = {{3{ETH_PRE}}, XGMII_START};
                 xgmii_txc_next = 4'b0001;
diff --git a/rtl/axis_xgmii_tx_64.v b/rtl/axis_xgmii_tx_64.v
index 0606db81e..c7ee3fd5b 100644
--- a/rtl/axis_xgmii_tx_64.v
+++ b/rtl/axis_xgmii_tx_64.v
@@ -80,6 +80,7 @@ module axis_xgmii_tx_64 #
      * Configuration
      */
     input  wire [7:0]                cfg_ifg,
+    input  wire                      cfg_tx_enable,
 
     /*
      * Status
@@ -335,7 +336,7 @@ always @* begin
             // idle state - wait for data
             frame_min_count_next = MIN_FRAME_LENGTH-4-CTRL_WIDTH;
             reset_crc = 1'b1;
-            s_axis_tready_next = 1'b1;
+            s_axis_tready_next = cfg_tx_enable;
 
             // XGMII idle
             xgmii_txd_next = {CTRL_WIDTH{XGMII_IDLE}};
@@ -344,7 +345,7 @@ always @* begin
             s_tdata_next = s_axis_tdata_masked;
             s_empty_next = keep2empty(s_axis_tkeep);
 
-            if (s_axis_tvalid) begin
+            if (s_axis_tvalid && s_axis_tready) begin
                 // XGMII start and preamble
                 if (swap_lanes_reg) begin
                     // lanes swapped
@@ -505,14 +506,14 @@ always @* begin
                         ifg_count_next = 8'd0;
                         swap_lanes_next = 1'b0;
                     end
-                    s_axis_tready_next = 1'b1;
+                    s_axis_tready_next = cfg_tx_enable;
                     state_next = STATE_IDLE;
                 end
             end else begin
                 if (ifg_count_next > 8'd4) begin
                     state_next = STATE_IFG;
                 end else begin
-                    s_axis_tready_next = 1'b1;
+                    s_axis_tready_next = cfg_tx_enable;
                     swap_lanes_next = ifg_count_next != 0;
                     state_next = STATE_IDLE;
                 end
@@ -538,14 +539,14 @@ always @* begin
                         ifg_count_next = 8'd0;
                         swap_lanes_next = 1'b0;
                     end
-                    s_axis_tready_next = 1'b1;
+                    s_axis_tready_next = cfg_tx_enable;
                     state_next = STATE_IDLE;
                 end
             end else begin
                 if (ifg_count_next > 8'd4) begin
                     state_next = STATE_IFG;
                 end else begin
-                    s_axis_tready_next = 1'b1;
+                    s_axis_tready_next = cfg_tx_enable;
                     swap_lanes_next = ifg_count_next != 0;
                     state_next = STATE_IDLE;
                 end
@@ -577,14 +578,14 @@ always @* begin
                                 ifg_count_next = 8'd0;
                                 swap_lanes_next = 1'b0;
                             end
-                            s_axis_tready_next = 1'b1;
+                            s_axis_tready_next = cfg_tx_enable;
                             state_next = STATE_IDLE;
                         end
                     end else begin
                         if (ifg_count_next > 8'd4) begin
                             state_next = STATE_IFG;
                         end else begin
-                            s_axis_tready_next = 1'b1;
+                            s_axis_tready_next = cfg_tx_enable;
                             swap_lanes_next = ifg_count_next != 0;
                             state_next = STATE_IDLE;
                         end
diff --git a/rtl/eth_mac_10g.v b/rtl/eth_mac_10g.v
index 27d330cbb..c64f5aae2 100644
--- a/rtl/eth_mac_10g.v
+++ b/rtl/eth_mac_10g.v
@@ -151,6 +151,8 @@ module eth_mac_10g #
      * Configuration
      */
     input  wire [7:0]                   cfg_ifg,
+    input  wire                         cfg_tx_enable,
+    input  wire                         cfg_rx_enable,
     input  wire [47:0]                  cfg_mcf_rx_eth_dst_mcast,
     input  wire                         cfg_mcf_rx_check_eth_dst_mcast,
     input  wire [47:0]                  cfg_mcf_rx_eth_dst_ucast,
@@ -238,6 +240,7 @@ axis_xgmii_rx_inst (
     .m_axis_tlast(rx_axis_tlast_int),
     .m_axis_tuser(rx_axis_tuser_int),
     .ptp_ts(rx_ptp_ts),
+    .cfg_rx_enable(cfg_rx_enable),
     .start_packet(rx_start_packet),
     .error_bad_frame(rx_error_bad_frame),
     .error_bad_fcs(rx_error_bad_fcs)
@@ -275,6 +278,7 @@ axis_xgmii_tx_inst (
     .m_axis_ptp_ts_tag(tx_axis_ptp_ts_tag),
     .m_axis_ptp_ts_valid(tx_axis_ptp_ts_valid),
     .cfg_ifg(cfg_ifg),
+    .cfg_tx_enable(cfg_tx_enable),
     .start_packet(tx_start_packet),
     .error_underflow(tx_error_underflow)
 );
@@ -300,6 +304,7 @@ axis_xgmii_rx_inst (
     .m_axis_tlast(rx_axis_tlast_int),
     .m_axis_tuser(rx_axis_tuser_int),
     .ptp_ts(rx_ptp_ts),
+    .cfg_rx_enable(cfg_rx_enable),
     .start_packet(rx_start_packet[0]),
     .error_bad_frame(rx_error_bad_frame),
     .error_bad_fcs(rx_error_bad_fcs)
@@ -337,6 +342,7 @@ axis_xgmii_tx_inst (
     .m_axis_ptp_ts_tag(tx_axis_ptp_ts_tag),
     .m_axis_ptp_ts_valid(tx_axis_ptp_ts_valid),
     .cfg_ifg(cfg_ifg),
+    .cfg_tx_enable(cfg_tx_enable),
     .start_packet(tx_start_packet[0]),
     .error_underflow(tx_error_underflow)
 );
diff --git a/rtl/eth_mac_10g_fifo.v b/rtl/eth_mac_10g_fifo.v
index 3acc04edd..7bba80a28 100644
--- a/rtl/eth_mac_10g_fifo.v
+++ b/rtl/eth_mac_10g_fifo.v
@@ -133,7 +133,9 @@ module eth_mac_10g_fifo #
     /*
      * Configuration
      */
-    input  wire [7:0]                 cfg_ifg
+    input  wire [7:0]                 cfg_ifg,
+    input  wire                       cfg_tx_enable,
+    input  wire                       cfg_rx_enable
 );
 
 parameter KEEP_WIDTH = DATA_WIDTH/8;
@@ -382,7 +384,9 @@ eth_mac_10g_inst (
     .rx_error_bad_frame(rx_error_bad_frame_int),
     .rx_error_bad_fcs(rx_error_bad_fcs_int),
 
-    .cfg_ifg(cfg_ifg)
+    .cfg_ifg(cfg_ifg),
+    .cfg_tx_enable(cfg_tx_enable),
+    .cfg_rx_enable(cfg_rx_enable)
 );
 
 axis_async_fifo_adapter #(
diff --git a/rtl/eth_mac_1g.v b/rtl/eth_mac_1g.v
index 49b8cc7ae..84eae7e16 100644
--- a/rtl/eth_mac_1g.v
+++ b/rtl/eth_mac_1g.v
@@ -154,6 +154,8 @@ module eth_mac_1g #
      * Configuration
      */
     input  wire [7:0]                   cfg_ifg,
+    input  wire                         cfg_tx_enable,
+    input  wire                         cfg_rx_enable,
     input  wire [47:0]                  cfg_mcf_rx_eth_dst_mcast,
     input  wire                         cfg_mcf_rx_check_eth_dst_mcast,
     input  wire [47:0]                  cfg_mcf_rx_eth_dst_ucast,
@@ -220,6 +222,7 @@ axis_gmii_rx_inst (
     .ptp_ts(rx_ptp_ts),
     .clk_enable(rx_clk_enable),
     .mii_select(rx_mii_select),
+    .cfg_rx_enable(cfg_rx_enable),
     .start_packet(rx_start_packet),
     .error_bad_frame(rx_error_bad_frame),
     .error_bad_fcs(rx_error_bad_fcs)
@@ -254,6 +257,7 @@ axis_gmii_tx_inst (
     .clk_enable(tx_clk_enable),
     .mii_select(tx_mii_select),
     .cfg_ifg(cfg_ifg),
+    .cfg_tx_enable(cfg_tx_enable),
     .start_packet(tx_start_packet),
     .error_underflow(tx_error_underflow)
 );
diff --git a/rtl/eth_mac_1g_fifo.v b/rtl/eth_mac_1g_fifo.v
index e5a629daf..d8b03e86c 100644
--- a/rtl/eth_mac_1g_fifo.v
+++ b/rtl/eth_mac_1g_fifo.v
@@ -113,7 +113,9 @@ module eth_mac_1g_fifo #
     /*
      * Configuration
      */
-    input  wire [7:0]                 cfg_ifg
+    input  wire [7:0]                 cfg_ifg,
+    input  wire                       cfg_tx_enable,
+    input  wire                       cfg_rx_enable
 );
 
 wire [7:0]  tx_fifo_axis_tdata;
@@ -219,7 +221,9 @@ eth_mac_1g_inst (
     .tx_error_underflow(tx_error_underflow_int),
     .rx_error_bad_frame(rx_error_bad_frame_int),
     .rx_error_bad_fcs(rx_error_bad_fcs_int),
-    .cfg_ifg(cfg_ifg)
+    .cfg_ifg(cfg_ifg),
+    .cfg_tx_enable(cfg_tx_enable),
+    .cfg_rx_enable(cfg_rx_enable)
 );
 
 axis_async_fifo_adapter #(
diff --git a/rtl/eth_mac_1g_gmii.v b/rtl/eth_mac_1g_gmii.v
index bc6912c2b..3ab6f0710 100644
--- a/rtl/eth_mac_1g_gmii.v
+++ b/rtl/eth_mac_1g_gmii.v
@@ -96,7 +96,9 @@ module eth_mac_1g_gmii #
     /*
      * Configuration
      */
-    input  wire [7:0]  cfg_ifg
+    input  wire [7:0]  cfg_ifg,
+    input  wire        cfg_tx_enable,
+    input  wire        cfg_rx_enable
 );
 
 wire [7:0]  mac_gmii_rxd;
@@ -244,7 +246,9 @@ eth_mac_1g_inst (
     .tx_error_underflow(tx_error_underflow),
     .rx_error_bad_frame(rx_error_bad_frame),
     .rx_error_bad_fcs(rx_error_bad_fcs),
-    .cfg_ifg(cfg_ifg)
+    .cfg_ifg(cfg_ifg),
+    .cfg_tx_enable(cfg_tx_enable),
+    .cfg_rx_enable(cfg_rx_enable)
 );
 
 endmodule
diff --git a/rtl/eth_mac_1g_gmii_fifo.v b/rtl/eth_mac_1g_gmii_fifo.v
index fa44aae40..5d2b23f42 100644
--- a/rtl/eth_mac_1g_gmii_fifo.v
+++ b/rtl/eth_mac_1g_gmii_fifo.v
@@ -118,7 +118,9 @@ module eth_mac_1g_gmii_fifo #
     /*
      * Configuration
      */
-    input  wire [7:0]                 cfg_ifg
+    input  wire [7:0]                 cfg_ifg,
+    input  wire                       cfg_tx_enable,
+    input  wire                       cfg_rx_enable
 );
 
 wire tx_clk;
@@ -246,7 +248,9 @@ eth_mac_1g_gmii_inst (
     .rx_error_bad_frame(rx_error_bad_frame_int),
     .rx_error_bad_fcs(rx_error_bad_fcs_int),
     .speed(speed_int),
-    .cfg_ifg(cfg_ifg)
+    .cfg_ifg(cfg_ifg),
+    .cfg_tx_enable(cfg_tx_enable),
+    .cfg_rx_enable(cfg_rx_enable)
 );
 
 axis_async_fifo_adapter #(
diff --git a/rtl/eth_mac_1g_rgmii.v b/rtl/eth_mac_1g_rgmii.v
index 43218a7fa..3f966d9b3 100644
--- a/rtl/eth_mac_1g_rgmii.v
+++ b/rtl/eth_mac_1g_rgmii.v
@@ -95,7 +95,9 @@ module eth_mac_1g_rgmii #
     /*
      * Configuration
      */
-    input  wire [7:0]  cfg_ifg
+    input  wire [7:0]  cfg_ifg,
+    input  wire        cfg_tx_enable,
+    input  wire        cfg_rx_enable
 );
 
 wire [7:0]  mac_gmii_rxd;
@@ -244,7 +246,9 @@ eth_mac_1g_inst (
     .tx_error_underflow(tx_error_underflow),
     .rx_error_bad_frame(rx_error_bad_frame),
     .rx_error_bad_fcs(rx_error_bad_fcs),
-    .cfg_ifg(cfg_ifg)
+    .cfg_ifg(cfg_ifg),
+    .cfg_tx_enable(cfg_tx_enable),
+    .cfg_rx_enable(cfg_rx_enable)
 );
 
 endmodule
diff --git a/rtl/eth_mac_1g_rgmii_fifo.v b/rtl/eth_mac_1g_rgmii_fifo.v
index e7c2418b8..c63af55f4 100644
--- a/rtl/eth_mac_1g_rgmii_fifo.v
+++ b/rtl/eth_mac_1g_rgmii_fifo.v
@@ -117,7 +117,9 @@ module eth_mac_1g_rgmii_fifo #
     /*
      * Configuration
      */
-    input  wire [7:0]                 cfg_ifg
+    input  wire [7:0]                 cfg_ifg,
+    input  wire                       cfg_tx_enable,
+    input  wire                       cfg_rx_enable
 );
 
 wire tx_clk;
@@ -244,7 +246,9 @@ eth_mac_1g_rgmii_inst (
     .rx_error_bad_frame(rx_error_bad_frame_int),
     .rx_error_bad_fcs(rx_error_bad_fcs_int),
     .speed(speed_int),
-    .cfg_ifg(cfg_ifg)
+    .cfg_ifg(cfg_ifg),
+    .cfg_tx_enable(cfg_tx_enable),
+    .cfg_rx_enable(cfg_rx_enable)
 );
 
 axis_async_fifo_adapter #(
diff --git a/rtl/eth_mac_mii.v b/rtl/eth_mac_mii.v
index f83e223b4..37e0766f1 100644
--- a/rtl/eth_mac_mii.v
+++ b/rtl/eth_mac_mii.v
@@ -91,7 +91,9 @@ module eth_mac_mii #
     /*
      * Configuration
      */
-    input  wire [7:0]  cfg_ifg
+    input  wire [7:0]  cfg_ifg,
+    input  wire        cfg_tx_enable,
+    input  wire        cfg_rx_enable
 );
 
 wire [3:0]  mac_mii_rxd;
@@ -162,7 +164,9 @@ eth_mac_1g_inst (
     .rx_start_packet(rx_start_packet),
     .rx_error_bad_frame(rx_error_bad_frame),
     .rx_error_bad_fcs(rx_error_bad_fcs),
-    .cfg_ifg(cfg_ifg)
+    .cfg_ifg(cfg_ifg),
+    .cfg_tx_enable(cfg_tx_enable),
+    .cfg_rx_enable(cfg_rx_enable)
 );
 
 endmodule
diff --git a/rtl/eth_mac_mii_fifo.v b/rtl/eth_mac_mii_fifo.v
index 5f315fd5a..f6d836919 100644
--- a/rtl/eth_mac_mii_fifo.v
+++ b/rtl/eth_mac_mii_fifo.v
@@ -111,7 +111,9 @@ module eth_mac_mii_fifo #
     /*
      * Configuration
      */
-    input  wire [7:0]                 cfg_ifg
+    input  wire [7:0]                 cfg_ifg,
+    input  wire                       cfg_tx_enable,
+    input  wire                       cfg_rx_enable
 );
 
 wire tx_clk;
@@ -223,7 +225,9 @@ eth_mac_1g_mii_inst (
     .tx_error_underflow(tx_error_underflow_int),
     .rx_error_bad_frame(rx_error_bad_frame_int),
     .rx_error_bad_fcs(rx_error_bad_fcs_int),
-    .cfg_ifg(cfg_ifg)
+    .cfg_ifg(cfg_ifg),
+    .cfg_tx_enable(cfg_tx_enable),
+    .cfg_rx_enable(cfg_rx_enable)
 );
 
 axis_async_fifo_adapter #(
diff --git a/rtl/eth_mac_phy_10g.v b/rtl/eth_mac_phy_10g.v
index a176ce9f9..be2a4408c 100644
--- a/rtl/eth_mac_phy_10g.v
+++ b/rtl/eth_mac_phy_10g.v
@@ -121,6 +121,8 @@ module eth_mac_phy_10g #
      * Configuration
      */
     input  wire [7:0]                   cfg_ifg,
+    input  wire                         cfg_tx_enable,
+    input  wire                         cfg_rx_enable,
     input  wire                         cfg_tx_prbs31_enable,
     input  wire                         cfg_rx_prbs31_enable
 );
@@ -163,6 +165,7 @@ eth_mac_phy_10g_rx_inst (
     .rx_block_lock(rx_block_lock),
     .rx_high_ber(rx_high_ber),
     .rx_status(rx_status),
+    .cfg_rx_enable(cfg_rx_enable),
     .cfg_rx_prbs31_enable(cfg_rx_prbs31_enable)
 );
 
@@ -204,6 +207,7 @@ eth_mac_phy_10g_tx_inst (
     .tx_start_packet(tx_start_packet),
     .tx_error_underflow(tx_error_underflow),
     .cfg_ifg(cfg_ifg),
+    .cfg_tx_enable(cfg_tx_enable),
     .cfg_tx_prbs31_enable(cfg_tx_prbs31_enable)
 );
 
diff --git a/rtl/eth_mac_phy_10g_fifo.v b/rtl/eth_mac_phy_10g_fifo.v
index 220a3396d..25c1a7ac4 100644
--- a/rtl/eth_mac_phy_10g_fifo.v
+++ b/rtl/eth_mac_phy_10g_fifo.v
@@ -148,6 +148,8 @@ module eth_mac_phy_10g_fifo #
      * Configuration
      */
     input  wire [7:0]                 cfg_ifg,
+    input  wire                       cfg_tx_enable,
+    input  wire                       cfg_rx_enable,
     input  wire                       cfg_tx_prbs31_enable,
     input  wire                       cfg_rx_prbs31_enable
 );
@@ -426,6 +428,8 @@ eth_mac_phy_10g_inst (
     .rx_status(rx_status_int),
 
     .cfg_ifg(cfg_ifg),
+    .cfg_tx_enable(cfg_tx_enable),
+    .cfg_rx_enable(cfg_rx_enable),
 
     .cfg_tx_prbs31_enable(cfg_tx_prbs31_enable),
     .cfg_rx_prbs31_enable(cfg_rx_prbs31_enable)
diff --git a/rtl/eth_mac_phy_10g_rx.v b/rtl/eth_mac_phy_10g_rx.v
index 3f498f0bc..28bf99408 100644
--- a/rtl/eth_mac_phy_10g_rx.v
+++ b/rtl/eth_mac_phy_10g_rx.v
@@ -90,6 +90,7 @@ module eth_mac_phy_10g_rx #
     /*
      * Configuration
      */
+    input  wire                     cfg_rx_enable,
     input  wire                     cfg_rx_prbs31_enable
 );
 
@@ -165,7 +166,8 @@ axis_baser_rx_inst (
     .start_packet(rx_start_packet),
     .error_bad_frame(rx_error_bad_frame),
     .error_bad_fcs(rx_error_bad_fcs),
-    .rx_bad_block(rx_bad_block)
+    .rx_bad_block(rx_bad_block),
+    .cfg_rx_enable(cfg_rx_enable)
 );
 
 endmodule
diff --git a/rtl/eth_mac_phy_10g_tx.v b/rtl/eth_mac_phy_10g_tx.v
index 91c992014..e84ee649a 100644
--- a/rtl/eth_mac_phy_10g_tx.v
+++ b/rtl/eth_mac_phy_10g_tx.v
@@ -90,6 +90,7 @@ module eth_mac_phy_10g_tx #
      * Configuration
      */
     input  wire [7:0]                cfg_ifg,
+    input  wire                      cfg_tx_enable,
     input  wire                      cfg_tx_prbs31_enable
 );
 
@@ -147,7 +148,8 @@ axis_baser_tx_inst (
     .m_axis_ptp_ts_valid(m_axis_ptp_ts_valid),
     .start_packet(tx_start_packet),
     .error_underflow(tx_error_underflow),
-    .cfg_ifg(cfg_ifg)
+    .cfg_ifg(cfg_ifg),
+    .cfg_tx_enable(cfg_tx_enable)
 );
 
 eth_phy_10g_tx_if #(
diff --git a/tb/axis_baser_rx_64/test_axis_baser_rx_64.py b/tb/axis_baser_rx_64/test_axis_baser_rx_64.py
index 38a2e29c3..8d6330ade 100644
--- a/tb/axis_baser_rx_64/test_axis_baser_rx_64.py
+++ b/tb/axis_baser_rx_64/test_axis_baser_rx_64.py
@@ -64,6 +64,8 @@ class TB:
 
         self.ptp_clock = PtpClockSimTime(ts_64=dut.ptp_ts, clock=dut.clk)
 
+        dut.cfg_rx_enable.setimmediatevalue(0)
+
     async def reset(self):
         self.dut.rst.setimmediatevalue(0)
         await RisingEdge(self.dut.clk)
@@ -81,6 +83,7 @@ async def run_test(dut, payload_lengths=None, payload_data=None, ifg=12):
     tb = TB(dut)
 
     tb.source.ifg = ifg
+    tb.dut.cfg_rx_enable.value = 1
 
     await tb.reset()
 
diff --git a/tb/axis_baser_tx_64/test_axis_baser_tx_64.py b/tb/axis_baser_tx_64/test_axis_baser_tx_64.py
index 4b3cb87ab..1c11aa066 100644
--- a/tb/axis_baser_tx_64/test_axis_baser_tx_64.py
+++ b/tb/axis_baser_tx_64/test_axis_baser_tx_64.py
@@ -74,6 +74,7 @@ class TB:
         self.ptp_ts_sink = PtpTsSink(PtpTsBus.from_prefix(dut, "m_axis_ptp"), dut.clk, dut.rst)
 
         dut.cfg_ifg.setimmediatevalue(0)
+        dut.cfg_tx_enable.setimmediatevalue(0)
 
     async def reset(self):
         self.dut.rst.setimmediatevalue(0)
@@ -92,6 +93,7 @@ async def run_test(dut, payload_lengths=None, payload_data=None, ifg=12):
     tb = TB(dut)
 
     tb.dut.cfg_ifg.value = ifg
+    tb.dut.cfg_tx_enable.value = 1
 
     await tb.reset()
 
@@ -136,6 +138,7 @@ async def run_test_alignment(dut, payload_data=None, ifg=12):
     byte_width = tb.source.width // 8
 
     tb.dut.cfg_ifg.value = ifg
+    tb.dut.cfg_tx_enable.value = 1
 
     await tb.reset()
 
diff --git a/tb/axis_gmii_rx/test_axis_gmii_rx.py b/tb/axis_gmii_rx/test_axis_gmii_rx.py
index 07605cf7e..ed2c381c4 100644
--- a/tb/axis_gmii_rx/test_axis_gmii_rx.py
+++ b/tb/axis_gmii_rx/test_axis_gmii_rx.py
@@ -59,6 +59,7 @@ class TB:
 
         dut.clk_enable.setimmediatevalue(1)
         dut.mii_select.setimmediatevalue(0)
+        dut.cfg_rx_enable.setimmediatevalue(0)
 
     async def reset(self):
         self.dut.rst.setimmediatevalue(0)
@@ -96,6 +97,7 @@ async def run_test(dut, payload_lengths=None, payload_data=None, ifg=12, enable_
 
     tb.source.ifg = ifg
     tb.dut.mii_select.value = mii_sel
+    tb.dut.cfg_rx_enable.value = 1
 
     if enable_gen is not None:
         tb.set_enable_generator(enable_gen())
diff --git a/tb/axis_gmii_tx/test_axis_gmii_tx.py b/tb/axis_gmii_tx/test_axis_gmii_tx.py
index 7176204a4..0fb466c59 100644
--- a/tb/axis_gmii_tx/test_axis_gmii_tx.py
+++ b/tb/axis_gmii_tx/test_axis_gmii_tx.py
@@ -68,6 +68,7 @@ class TB:
         dut.clk_enable.setimmediatevalue(1)
         dut.mii_select.setimmediatevalue(0)
         dut.cfg_ifg.setimmediatevalue(0)
+        dut.cfg_tx_enable.setimmediatevalue(0)
 
     async def reset(self):
         self.dut.rst.setimmediatevalue(0)
@@ -104,6 +105,7 @@ async def run_test(dut, payload_lengths=None, payload_data=None, ifg=12, enable_
     tb = TB(dut)
 
     tb.dut.cfg_ifg.value = ifg
+    tb.dut.cfg_tx_enable.value = 1
     tb.dut.mii_select.value = mii_sel
 
     if enable_gen is not None:
diff --git a/tb/axis_xgmii_rx_32/test_axis_xgmii_rx_32.py b/tb/axis_xgmii_rx_32/test_axis_xgmii_rx_32.py
index d77a31310..b50138b02 100644
--- a/tb/axis_xgmii_rx_32/test_axis_xgmii_rx_32.py
+++ b/tb/axis_xgmii_rx_32/test_axis_xgmii_rx_32.py
@@ -53,6 +53,8 @@ class TB:
 
         self.ptp_clock = PtpClockSimTime(ts_64=dut.ptp_ts, clock=dut.clk)
 
+        dut.cfg_rx_enable.setimmediatevalue(0)
+
     async def reset(self):
         self.dut.rst.setimmediatevalue(0)
         await RisingEdge(self.dut.clk)
@@ -70,6 +72,7 @@ async def run_test(dut, payload_lengths=None, payload_data=None, ifg=12):
     tb = TB(dut)
 
     tb.source.ifg = ifg
+    tb.dut.cfg_rx_enable.value = 1
 
     await tb.reset()
 
diff --git a/tb/axis_xgmii_rx_64/test_axis_xgmii_rx_64.py b/tb/axis_xgmii_rx_64/test_axis_xgmii_rx_64.py
index 0bd4cf6b9..b5b29735d 100644
--- a/tb/axis_xgmii_rx_64/test_axis_xgmii_rx_64.py
+++ b/tb/axis_xgmii_rx_64/test_axis_xgmii_rx_64.py
@@ -53,6 +53,8 @@ class TB:
 
         self.ptp_clock = PtpClockSimTime(ts_64=dut.ptp_ts, clock=dut.clk)
 
+        dut.cfg_rx_enable.setimmediatevalue(0)
+
     async def reset(self):
         self.dut.rst.setimmediatevalue(0)
         await RisingEdge(self.dut.clk)
@@ -70,6 +72,7 @@ async def run_test(dut, payload_lengths=None, payload_data=None, ifg=12):
     tb = TB(dut)
 
     tb.source.ifg = ifg
+    tb.dut.cfg_rx_enable.value = 1
 
     await tb.reset()
 
diff --git a/tb/axis_xgmii_tx_32/test_axis_xgmii_tx_32.py b/tb/axis_xgmii_tx_32/test_axis_xgmii_tx_32.py
index 790af2da9..6ce0161d7 100644
--- a/tb/axis_xgmii_tx_32/test_axis_xgmii_tx_32.py
+++ b/tb/axis_xgmii_tx_32/test_axis_xgmii_tx_32.py
@@ -63,6 +63,7 @@ class TB:
         self.ptp_ts_sink = PtpTsSink(PtpTsBus.from_prefix(dut, "m_axis_ptp"), dut.clk, dut.rst)
 
         dut.cfg_ifg.setimmediatevalue(0)
+        dut.cfg_tx_enable.setimmediatevalue(0)
 
     async def reset(self):
         self.dut.rst.setimmediatevalue(0)
@@ -81,6 +82,7 @@ async def run_test(dut, payload_lengths=None, payload_data=None, ifg=12):
     tb = TB(dut)
 
     tb.dut.cfg_ifg.value = ifg
+    tb.dut.cfg_tx_enable.value = 1
 
     await tb.reset()
 
@@ -121,6 +123,7 @@ async def run_test_alignment(dut, payload_data=None, ifg=12):
     byte_width = tb.source.width // 8
 
     tb.dut.cfg_ifg.value = ifg
+    tb.dut.cfg_tx_enable.value = 1
 
     await tb.reset()
 
diff --git a/tb/axis_xgmii_tx_64/test_axis_xgmii_tx_64.py b/tb/axis_xgmii_tx_64/test_axis_xgmii_tx_64.py
index df6708826..54cbf3ed9 100644
--- a/tb/axis_xgmii_tx_64/test_axis_xgmii_tx_64.py
+++ b/tb/axis_xgmii_tx_64/test_axis_xgmii_tx_64.py
@@ -63,6 +63,7 @@ class TB:
         self.ptp_ts_sink = PtpTsSink(PtpTsBus.from_prefix(dut, "m_axis_ptp"), dut.clk, dut.rst)
 
         dut.cfg_ifg.setimmediatevalue(0)
+        dut.cfg_tx_enable.setimmediatevalue(0)
 
     async def reset(self):
         self.dut.rst.setimmediatevalue(0)
@@ -81,6 +82,7 @@ async def run_test(dut, payload_lengths=None, payload_data=None, ifg=12):
     tb = TB(dut)
 
     tb.dut.cfg_ifg.value = ifg
+    tb.dut.cfg_tx_enable.value = 1
 
     await tb.reset()
 
@@ -125,6 +127,7 @@ async def run_test_alignment(dut, payload_data=None, ifg=12):
     byte_width = tb.source.width // 8
 
     tb.dut.cfg_ifg.value = ifg
+    tb.dut.cfg_tx_enable.value = 1
 
     await tb.reset()
 
diff --git a/tb/eth_mac_10g/test_eth_mac_10g.py b/tb/eth_mac_10g/test_eth_mac_10g.py
index 842ecfa9a..a4c19be2a 100644
--- a/tb/eth_mac_10g/test_eth_mac_10g.py
+++ b/tb/eth_mac_10g/test_eth_mac_10g.py
@@ -89,6 +89,8 @@ class TB:
         dut.tx_pause_req.setimmediatevalue(0)
 
         dut.cfg_ifg.setimmediatevalue(0)
+        dut.cfg_tx_enable.setimmediatevalue(0)
+        dut.cfg_rx_enable.setimmediatevalue(0)
         dut.cfg_mcf_rx_eth_dst_mcast.setimmediatevalue(0)
         dut.cfg_mcf_rx_check_eth_dst_mcast.setimmediatevalue(0)
         dut.cfg_mcf_rx_eth_dst_ucast.setimmediatevalue(0)
@@ -142,6 +144,7 @@ async def run_test_rx(dut, payload_lengths=None, payload_data=None, ifg=12):
 
     tb.xgmii_source.ifg = ifg
     tb.dut.cfg_ifg.value = ifg
+    tb.dut.cfg_rx_enable.value = 1
 
     await tb.reset()
 
@@ -186,6 +189,7 @@ async def run_test_tx(dut, payload_lengths=None, payload_data=None, ifg=12):
 
     tb.xgmii_source.ifg = ifg
     tb.dut.cfg_ifg.value = ifg
+    tb.dut.cfg_tx_enable.value = 1
 
     await tb.reset()
 
@@ -231,6 +235,7 @@ async def run_test_tx_alignment(dut, payload_data=None, ifg=12):
 
     tb.xgmii_source.ifg = ifg
     tb.dut.cfg_ifg.value = ifg
+    tb.dut.cfg_tx_enable.value = 1
 
     await tb.reset()
 
@@ -314,6 +319,8 @@ async def run_test_lfc(dut, ifg=12):
 
     tb.xgmii_source.ifg = ifg
     tb.dut.cfg_ifg.value = ifg
+    tb.dut.cfg_tx_enable.value = 1
+    tb.dut.cfg_rx_enable.value = 1
 
     await tb.reset()
 
@@ -457,6 +464,8 @@ async def run_test_pfc(dut, ifg=12):
 
     tb.xgmii_source.ifg = ifg
     tb.dut.cfg_ifg.value = ifg
+    tb.dut.cfg_tx_enable.value = 1
+    tb.dut.cfg_rx_enable.value = 1
 
     await tb.reset()
 
diff --git a/tb/eth_mac_10g_fifo/test_eth_mac_10g_fifo.py b/tb/eth_mac_10g_fifo/test_eth_mac_10g_fifo.py
index dc35847f0..5a3343087 100644
--- a/tb/eth_mac_10g_fifo/test_eth_mac_10g_fifo.py
+++ b/tb/eth_mac_10g_fifo/test_eth_mac_10g_fifo.py
@@ -76,6 +76,8 @@ class TB:
         dut.ptp_ts_step.setimmediatevalue(0)
 
         dut.cfg_ifg.setimmediatevalue(0)
+        dut.cfg_tx_enable.setimmediatevalue(0)
+        dut.cfg_rx_enable.setimmediatevalue(0)
 
     async def reset(self):
         self.dut.logic_rst.setimmediatevalue(0)
@@ -101,6 +103,7 @@ async def run_test_rx(dut, payload_lengths=None, payload_data=None, ifg=12):
 
     tb.xgmii_source.ifg = ifg
     tb.dut.cfg_ifg.value = ifg
+    tb.dut.cfg_rx_enable.value = 1
 
     await tb.reset()
 
@@ -149,6 +152,7 @@ async def run_test_tx(dut, payload_lengths=None, payload_data=None, ifg=12):
 
     tb.xgmii_source.ifg = ifg
     tb.dut.cfg_ifg.value = ifg
+    tb.dut.cfg_tx_enable.value = 1
 
     await tb.reset()
 
@@ -198,6 +202,7 @@ async def run_test_tx_alignment(dut, payload_data=None, ifg=12):
 
     tb.xgmii_source.ifg = ifg
     tb.dut.cfg_ifg.value = ifg
+    tb.dut.cfg_tx_enable.value = 1
 
     await tb.reset()
 
diff --git a/tb/eth_mac_1g/test_eth_mac_1g.py b/tb/eth_mac_1g/test_eth_mac_1g.py
index 1a7a50a07..af2173d52 100644
--- a/tb/eth_mac_1g/test_eth_mac_1g.py
+++ b/tb/eth_mac_1g/test_eth_mac_1g.py
@@ -96,6 +96,8 @@ class TB:
         dut.tx_mii_select.setimmediatevalue(0)
 
         dut.cfg_ifg.setimmediatevalue(0)
+        dut.cfg_tx_enable.setimmediatevalue(0)
+        dut.cfg_rx_enable.setimmediatevalue(0)
         dut.cfg_mcf_rx_eth_dst_mcast.setimmediatevalue(0)
         dut.cfg_mcf_rx_check_eth_dst_mcast.setimmediatevalue(0)
         dut.cfg_mcf_rx_eth_dst_ucast.setimmediatevalue(0)
@@ -185,6 +187,7 @@ async def run_test_rx(dut, payload_lengths=None, payload_data=None, ifg=12, enab
 
     tb.gmii_source.ifg = ifg
     tb.dut.cfg_ifg.value = ifg
+    tb.dut.cfg_rx_enable.value = 1
     tb.dut.rx_mii_select.value = mii_sel
     tb.dut.tx_mii_select.value = mii_sel
 
@@ -231,6 +234,7 @@ async def run_test_tx(dut, payload_lengths=None, payload_data=None, ifg=12, enab
 
     tb.gmii_source.ifg = ifg
     tb.dut.cfg_ifg.value = ifg
+    tb.dut.cfg_tx_enable.value = 1
     tb.dut.rx_mii_select.value = mii_sel
     tb.dut.tx_mii_select.value = mii_sel
 
@@ -274,6 +278,8 @@ async def run_test_lfc(dut, ifg=12, enable_gen=None, mii_sel=True):
 
     tb.gmii_source.ifg = ifg
     tb.dut.cfg_ifg.value = ifg
+    tb.dut.cfg_tx_enable.value = 1
+    tb.dut.cfg_rx_enable.value = 1
     tb.dut.rx_mii_select.value = mii_sel
     tb.dut.tx_mii_select.value = mii_sel
 
@@ -423,6 +429,8 @@ async def run_test_pfc(dut, ifg=12, enable_gen=None, mii_sel=True):
 
     tb.gmii_source.ifg = ifg
     tb.dut.cfg_ifg.value = ifg
+    tb.dut.cfg_tx_enable.value = 1
+    tb.dut.cfg_rx_enable.value = 1
     tb.dut.rx_mii_select.value = mii_sel
     tb.dut.tx_mii_select.value = mii_sel
 
diff --git a/tb/eth_mac_1g_fifo/test_eth_mac_1g_fifo.py b/tb/eth_mac_1g_fifo/test_eth_mac_1g_fifo.py
index c37e8c268..09109685e 100644
--- a/tb/eth_mac_1g_fifo/test_eth_mac_1g_fifo.py
+++ b/tb/eth_mac_1g_fifo/test_eth_mac_1g_fifo.py
@@ -67,6 +67,8 @@ class TB:
         dut.rx_mii_select.setimmediatevalue(0)
         dut.tx_mii_select.setimmediatevalue(0)
         dut.cfg_ifg.setimmediatevalue(0)
+        dut.cfg_tx_enable.setimmediatevalue(0)
+        dut.cfg_rx_enable.setimmediatevalue(0)
 
     async def reset(self):
         self.dut.logic_rst.setimmediatevalue(0)
@@ -128,6 +130,7 @@ async def run_test_rx(dut, payload_lengths=None, payload_data=None, ifg=12, enab
 
     tb.gmii_source.ifg = ifg
     tb.dut.cfg_ifg.value = ifg
+    tb.dut.cfg_rx_enable.value = 1
     tb.dut.rx_mii_select.value = mii_sel
     tb.dut.tx_mii_select.value = mii_sel
 
@@ -161,6 +164,7 @@ async def run_test_tx(dut, payload_lengths=None, payload_data=None, ifg=12, enab
 
     tb.gmii_source.ifg = ifg
     tb.dut.cfg_ifg.value = ifg
+    tb.dut.cfg_tx_enable.value = 1
     tb.dut.rx_mii_select.value = mii_sel
     tb.dut.tx_mii_select.value = mii_sel
 
diff --git a/tb/eth_mac_1g_gmii/test_eth_mac_1g_gmii.py b/tb/eth_mac_1g_gmii/test_eth_mac_1g_gmii.py
index e0e3cd32a..135bf8d45 100644
--- a/tb/eth_mac_1g_gmii/test_eth_mac_1g_gmii.py
+++ b/tb/eth_mac_1g_gmii/test_eth_mac_1g_gmii.py
@@ -54,6 +54,8 @@ class TB:
         self.axis_sink = AxiStreamSink(AxiStreamBus.from_prefix(dut, "rx_axis"), dut.rx_clk, dut.rx_rst)
 
         dut.cfg_ifg.setimmediatevalue(0)
+        dut.cfg_tx_enable.setimmediatevalue(0)
+        dut.cfg_rx_enable.setimmediatevalue(0)
 
     async def reset(self):
         self.dut.gtx_rst.setimmediatevalue(0)
@@ -76,6 +78,7 @@ async def run_test_rx(dut, payload_lengths=None, payload_data=None, ifg=12, spee
 
     tb.gmii_phy.rx.ifg = ifg
     tb.dut.cfg_ifg.value = ifg
+    tb.dut.cfg_rx_enable.value = 1
 
     tb.set_speed(speed)
 
@@ -115,6 +118,7 @@ async def run_test_tx(dut, payload_lengths=None, payload_data=None, ifg=12, spee
 
     tb.gmii_phy.rx.ifg = ifg
     tb.dut.cfg_ifg.value = ifg
+    tb.dut.cfg_tx_enable.value = 1
 
     tb.set_speed(speed)
 
diff --git a/tb/eth_mac_1g_gmii_fifo/test_eth_mac_1g_gmii_fifo.py b/tb/eth_mac_1g_gmii_fifo/test_eth_mac_1g_gmii_fifo.py
index c080369f5..1879de718 100644
--- a/tb/eth_mac_1g_gmii_fifo/test_eth_mac_1g_gmii_fifo.py
+++ b/tb/eth_mac_1g_gmii_fifo/test_eth_mac_1g_gmii_fifo.py
@@ -55,6 +55,8 @@ class TB:
         self.axis_sink = AxiStreamSink(AxiStreamBus.from_prefix(dut, "rx_axis"), dut.logic_clk, dut.logic_rst)
 
         dut.cfg_ifg.setimmediatevalue(0)
+        dut.cfg_tx_enable.setimmediatevalue(0)
+        dut.cfg_rx_enable.setimmediatevalue(0)
 
     async def reset(self):
         self.dut.gtx_rst.setimmediatevalue(0)
@@ -80,6 +82,7 @@ async def run_test_rx(dut, payload_lengths=None, payload_data=None, ifg=12, spee
 
     tb.gmii_phy.rx.ifg = ifg
     tb.dut.cfg_ifg.value = ifg
+    tb.dut.cfg_rx_enable.value = 1
 
     tb.set_speed(speed)
 
@@ -119,6 +122,7 @@ async def run_test_tx(dut, payload_lengths=None, payload_data=None, ifg=12, spee
 
     tb.gmii_phy.rx.ifg = ifg
     tb.dut.cfg_ifg.value = ifg
+    tb.dut.cfg_tx_enable.value = 1
 
     tb.set_speed(speed)
 
diff --git a/tb/eth_mac_1g_rgmii/test_eth_mac_1g_rgmii.py b/tb/eth_mac_1g_rgmii/test_eth_mac_1g_rgmii.py
index c19ad0298..ffc4132d7 100644
--- a/tb/eth_mac_1g_rgmii/test_eth_mac_1g_rgmii.py
+++ b/tb/eth_mac_1g_rgmii/test_eth_mac_1g_rgmii.py
@@ -51,6 +51,8 @@ class TB:
         self.axis_sink = AxiStreamSink(AxiStreamBus.from_prefix(dut, "rx_axis"), dut.rx_clk, dut.rx_rst)
 
         dut.cfg_ifg.setimmediatevalue(0)
+        dut.cfg_tx_enable.setimmediatevalue(0)
+        dut.cfg_rx_enable.setimmediatevalue(0)
 
         dut.gtx_clk.setimmediatevalue(0)
         dut.gtx_clk90.setimmediatevalue(0)
@@ -87,6 +89,7 @@ async def run_test_rx(dut, payload_lengths=None, payload_data=None, ifg=12, spee
 
     tb.rgmii_phy.rx.ifg = ifg
     tb.dut.cfg_ifg.value = ifg
+    tb.dut.cfg_rx_enable.value = 1
 
     await tb.reset()
 
@@ -124,6 +127,7 @@ async def run_test_tx(dut, payload_lengths=None, payload_data=None, ifg=12, spee
 
     tb.rgmii_phy.rx.ifg = ifg
     tb.dut.cfg_ifg.value = ifg
+    tb.dut.cfg_tx_enable.value = 1
 
     await tb.reset()
 
diff --git a/tb/eth_mac_1g_rgmii_fifo/test_eth_mac_1g_rgmii_fifo.py b/tb/eth_mac_1g_rgmii_fifo/test_eth_mac_1g_rgmii_fifo.py
index a6cbcea56..9eb15c404 100644
--- a/tb/eth_mac_1g_rgmii_fifo/test_eth_mac_1g_rgmii_fifo.py
+++ b/tb/eth_mac_1g_rgmii_fifo/test_eth_mac_1g_rgmii_fifo.py
@@ -54,6 +54,8 @@ class TB:
         self.axis_sink = AxiStreamSink(AxiStreamBus.from_prefix(dut, "rx_axis"), dut.logic_clk, dut.logic_rst)
 
         dut.cfg_ifg.setimmediatevalue(0)
+        dut.cfg_tx_enable.setimmediatevalue(0)
+        dut.cfg_rx_enable.setimmediatevalue(0)
 
         dut.gtx_clk.setimmediatevalue(0)
         dut.gtx_clk90.setimmediatevalue(0)
@@ -93,6 +95,7 @@ async def run_test_rx(dut, payload_lengths=None, payload_data=None, ifg=12, spee
 
     tb.rgmii_phy.rx.ifg = ifg
     tb.dut.cfg_ifg.value = ifg
+    tb.dut.cfg_rx_enable.value = 1
 
     await tb.reset()
 
@@ -130,6 +133,7 @@ async def run_test_tx(dut, payload_lengths=None, payload_data=None, ifg=12, spee
 
     tb.rgmii_phy.rx.ifg = ifg
     tb.dut.cfg_ifg.value = ifg
+    tb.dut.cfg_tx_enable.value = 1
 
     await tb.reset()
 
diff --git a/tb/eth_mac_mii/test_eth_mac_mii.py b/tb/eth_mac_mii/test_eth_mac_mii.py
index f038895ab..cf6734b81 100644
--- a/tb/eth_mac_mii/test_eth_mac_mii.py
+++ b/tb/eth_mac_mii/test_eth_mac_mii.py
@@ -51,6 +51,8 @@ class TB:
         self.axis_sink = AxiStreamSink(AxiStreamBus.from_prefix(dut, "rx_axis"), dut.rx_clk, dut.rx_rst)
 
         dut.cfg_ifg.setimmediatevalue(0)
+        dut.cfg_tx_enable.setimmediatevalue(0)
+        dut.cfg_rx_enable.setimmediatevalue(0)
 
     async def reset(self):
         self.dut.rst.setimmediatevalue(0)
@@ -70,6 +72,7 @@ async def run_test_rx(dut, payload_lengths=None, payload_data=None, ifg=12, spee
 
     tb.mii_phy.rx.ifg = ifg
     tb.dut.cfg_ifg.value = ifg
+    tb.dut.cfg_rx_enable.value = 1
 
     await tb.reset()
 
@@ -97,6 +100,7 @@ async def run_test_tx(dut, payload_lengths=None, payload_data=None, ifg=12, spee
 
     tb.mii_phy.rx.ifg = ifg
     tb.dut.cfg_ifg.value = ifg
+    tb.dut.cfg_tx_enable.value = 1
 
     await tb.reset()
 
diff --git a/tb/eth_mac_mii_fifo/test_eth_mac_mii_fifo.py b/tb/eth_mac_mii_fifo/test_eth_mac_mii_fifo.py
index 6da182e21..297f0f3a5 100644
--- a/tb/eth_mac_mii_fifo/test_eth_mac_mii_fifo.py
+++ b/tb/eth_mac_mii_fifo/test_eth_mac_mii_fifo.py
@@ -54,6 +54,8 @@ class TB:
         self.axis_sink = AxiStreamSink(AxiStreamBus.from_prefix(dut, "rx_axis"), dut.logic_clk, dut.logic_rst)
 
         dut.cfg_ifg.setimmediatevalue(0)
+        dut.cfg_tx_enable.setimmediatevalue(0)
+        dut.cfg_rx_enable.setimmediatevalue(0)
 
     async def reset(self):
         self.dut.logic_rst.setimmediatevalue(0)
@@ -73,6 +75,7 @@ async def run_test_rx(dut, payload_lengths=None, payload_data=None, ifg=12, spee
 
     tb.mii_phy.rx.ifg = ifg
     tb.dut.cfg_ifg.value = ifg
+    tb.dut.cfg_rx_enable.value = 1
 
     await tb.reset()
 
@@ -100,6 +103,7 @@ async def run_test_tx(dut, payload_lengths=None, payload_data=None, ifg=12, spee
 
     tb.mii_phy.rx.ifg = ifg
     tb.dut.cfg_ifg.value = ifg
+    tb.dut.cfg_tx_enable.value = 1
 
     await tb.reset()
 
diff --git a/tb/eth_mac_phy_10g/test_eth_mac_phy_10g.py b/tb/eth_mac_phy_10g/test_eth_mac_phy_10g.py
index 74b07ba94..13f8f51d5 100644
--- a/tb/eth_mac_phy_10g/test_eth_mac_phy_10g.py
+++ b/tb/eth_mac_phy_10g/test_eth_mac_phy_10g.py
@@ -84,6 +84,8 @@ class TB:
         self.tx_ptp_ts_sink = PtpTsSink(PtpTsBus.from_prefix(dut, "tx_axis_ptp"), dut.tx_clk, dut.tx_rst)
 
         dut.cfg_ifg.setimmediatevalue(0)
+        dut.cfg_tx_enable.setimmediatevalue(0)
+        dut.cfg_rx_enable.setimmediatevalue(0)
         dut.cfg_tx_prbs31_enable.setimmediatevalue(0)
         dut.cfg_rx_prbs31_enable.setimmediatevalue(0)
 
@@ -108,6 +110,7 @@ async def run_test_rx(dut, payload_lengths=None, payload_data=None, ifg=12):
 
     tb.serdes_source.ifg = ifg
     tb.dut.cfg_ifg.value = ifg
+    tb.dut.cfg_rx_enable.value = 1
 
     await tb.reset()
 
@@ -161,6 +164,7 @@ async def run_test_tx(dut, payload_lengths=None, payload_data=None, ifg=12):
 
     tb.serdes_source.ifg = ifg
     tb.dut.cfg_ifg.value = ifg
+    tb.dut.cfg_tx_enable.value = 1
 
     await tb.reset()
 
@@ -206,6 +210,7 @@ async def run_test_tx_alignment(dut, payload_data=None, ifg=12):
 
     tb.serdes_source.ifg = ifg
     tb.dut.cfg_ifg.value = ifg
+    tb.dut.cfg_tx_enable.value = 1
 
     await tb.reset()
 
diff --git a/tb/eth_mac_phy_10g_fifo/test_eth_mac_phy_10g_fifo.py b/tb/eth_mac_phy_10g_fifo/test_eth_mac_phy_10g_fifo.py
index b470e789e..d6883df76 100644
--- a/tb/eth_mac_phy_10g_fifo/test_eth_mac_phy_10g_fifo.py
+++ b/tb/eth_mac_phy_10g_fifo/test_eth_mac_phy_10g_fifo.py
@@ -87,6 +87,8 @@ class TB:
         dut.ptp_ts_step.setimmediatevalue(0)
 
         dut.cfg_ifg.setimmediatevalue(0)
+        dut.cfg_tx_enable.setimmediatevalue(0)
+        dut.cfg_rx_enable.setimmediatevalue(0)
         dut.cfg_tx_prbs31_enable.setimmediatevalue(0)
         dut.cfg_rx_prbs31_enable.setimmediatevalue(0)
 
@@ -114,6 +116,7 @@ async def run_test_rx(dut, payload_lengths=None, payload_data=None, ifg=12):
 
     tb.serdes_source.ifg = ifg
     tb.dut.cfg_ifg.value = ifg
+    tb.dut.cfg_rx_enable.value = 1
 
     await tb.reset()
 
@@ -169,6 +172,7 @@ async def run_test_tx(dut, payload_lengths=None, payload_data=None, ifg=12):
 
     tb.serdes_source.ifg = ifg
     tb.dut.cfg_ifg.value = ifg
+    tb.dut.cfg_tx_enable.value = 1
 
     await tb.reset()
 
@@ -218,6 +222,7 @@ async def run_test_tx_alignment(dut, payload_data=None, ifg=12):
 
     tb.serdes_source.ifg = ifg
     tb.dut.cfg_ifg.value = ifg
+    tb.dut.cfg_tx_enable.value = 1
 
     await tb.reset()