diff --git a/projects/fmcomms5/zc702/system_constr.xdc b/projects/fmcomms5/zc702/system_constr.xdc
index 72fa1068f..da6c9d2e4 100644
--- a/projects/fmcomms5/zc702/system_constr.xdc
+++ b/projects/fmcomms5/zc702/system_constr.xdc
@@ -120,6 +120,7 @@ set_property  -dict {PACKAGE_PIN  W12   IOSTANDARD LVCMOS25}  [get_ports gpio_ct
 set_property  -dict {PACKAGE_PIN  U6    IOSTANDARD LVCMOS25}  [get_ports gpio_ctl_1[2]]                         ; ## H28  FMC2_LPC_LA24_P
 set_property  -dict {PACKAGE_PIN  U5    IOSTANDARD LVCMOS25}  [get_ports gpio_ctl_1[3]]                         ; ## H29  FMC2_LPC_LA24_N
 set_property  -dict {PACKAGE_PIN  AA12  IOSTANDARD LVCMOS25}  [get_ports gpio_en_agc_1]                         ; ## G27  FMC2_LPC_LA25_P
+set_property  -dict {PACKAGE_PIN  AA11  IOSTANDARD LVCMOS25}  [get_ports gpio_resetb_1]                         ; ## G30  FMC2_LPC_LA29_P
 set_property  -dict {PACKAGE_PIN  AB14  IOSTANDARD LVCMOS25}  [get_ports gpio_enable_1]                         ; ## G18  FMC2_LPC_LA16_P
 set_property  -dict {PACKAGE_PIN  AB15  IOSTANDARD LVCMOS25}  [get_ports gpio_txnrx_1]                          ; ## G19  FMC2_LPC_LA16_N        
 set_property  -dict {PACKAGE_PIN  AB2   IOSTANDARD LVCMOS25}  [get_ports gpio_debug_3_1]                        ; ## C26  FMC2_LPC_LA27_P
diff --git a/projects/fmcomms5/zc702/system_top.v b/projects/fmcomms5/zc702/system_top.v
index 22591e74c..d96ebdb2f 100644
--- a/projects/fmcomms5/zc702/system_top.v
+++ b/projects/fmcomms5/zc702/system_top.v
@@ -118,6 +118,7 @@ module system_top (
   gpio_status_1,  
   gpio_ctl_1,
   gpio_en_agc_1,
+  gpio_resetb_1,
   gpio_enable_1,
   gpio_txnrx_1,
   gpio_debug_3_1,
@@ -212,6 +213,7 @@ module system_top (
   inout   [  7:0] gpio_status_1;
   inout   [  3:0] gpio_ctl_1;
   inout           gpio_en_agc_1;
+  inout           gpio_resetb_1;
   inout           gpio_enable_1;
   inout           gpio_txnrx_1;
   inout           gpio_debug_3_1;
@@ -245,10 +247,6 @@ module system_top (
   wire    [ 63:0] gpio_t;
   wire            gpio_open_45_45;
   wire            gpio_open_44_44;
-  wire    [ 63:0] ad9361_0_adc_ddata;
-  wire    [ 63:0] ad9361_0_dac_ddata;
-  wire    [ 63:0] ad9361_1_adc_ddata;
-  wire    [ 63:0] ad9361_1_dac_ddata;
 
   // multi-chip synchronization
 
@@ -275,11 +273,12 @@ module system_top (
     .I (ref_clk_s),
     .O (ref_clk));
 
-  ad_iobuf #(.DATA_WIDTH(59)) i_iobuf (
-    .dt (gpio_t[58:0]),
-    .di (gpio_o[58:0]),
-    .do (gpio_i[58:0]),
-    .dio ({ gpio_ad5355_lock, // 58
+  ad_iobuf #(.DATA_WIDTH(60)) i_iobuf (
+    .dt (gpio_t[59:0]),
+    .di (gpio_o[59:0]),
+    .do (gpio_i[59:0]),
+    .dio ({ gpio_resetb_1,    // 59
+            gpio_ad5355_lock, // 58
             gpio_ad5355_rfen, // 57
             gpio_calsw_4_1,   // 56
             gpio_calsw_3_1,   // 55
@@ -329,12 +328,6 @@ module system_top (
     .GPIO_I (gpio_i),
     .GPIO_O (gpio_o),
     .GPIO_T (gpio_t),
-    .ad9361_0_adc_ddata (ad9361_0_adc_ddata),
-    .ad9361_0_dac_ddata (ad9361_0_dac_ddata),
-    .ad9361_1_adc_ddata (ad9361_1_adc_ddata),
-    .ad9361_1_dac_ddata (ad9361_1_dac_ddata),    
-    .ad9361_adc_ddata ({ad9361_0_adc_ddata, ad9361_1_adc_ddata}),
-    .ad9361_dac_ddata ({ad9361_0_dac_ddata, ad9361_1_dac_ddata}), 
     .hdmi_data (hdmi_data),
     .hdmi_data_e (hdmi_data_e),
     .hdmi_hsync (hdmi_hsync),