diff --git a/top/x400/doc/X4XX_FPGA_right.htm b/top/x400/doc/X4XX_FPGA_right.htm
index b7495d6..0d8ec1c 100644
--- a/top/x400/doc/X4XX_FPGA_right.htm
+++ b/top/x400/doc/X4XX_FPGA_right.htm
@@ -24131,9 +24131,9 @@ FPGA version.<BR/>
 
 <tr valign="top">
 
-                        <td class='value'>570500626</td>
+                        <td class='value'>570565649</td>
                         
-                            <td class='l'>0x22012612</td>
+                            <td class='l'>0x22022411</td>
                             
                             <td class="l" style="text-align: left;">
                               <p class="name"><a name='VERSIONING_REGS_REGMAP|FPGA_VERSION|FPGA_VERSION_LAST_MODIFIED_TIME'></a>FPGA_VERSION_LAST_MODIFIED_TIME</p>
diff --git a/top/x400/regmap/versioning_regs_regmap_utils.vh b/top/x400/regmap/versioning_regs_regmap_utils.vh
index 9d9eb39..8928f06 100644
--- a/top/x400/regmap/versioning_regs_regmap_utils.vh
+++ b/top/x400/regmap/versioning_regs_regmap_utils.vh
@@ -85,7 +85,7 @@
   localparam FPGA_CURRENT_VERSION_MINOR            = 'h6;  // FPGA_VERSION:FPGA_CURRENT_VERSION_MINOR
   localparam FPGA_CURRENT_VERSION_MAJOR            = 'h7;  // FPGA_VERSION:FPGA_CURRENT_VERSION_MAJOR
   localparam FPGA_OLDEST_COMPATIBLE_VERSION_MAJOR  = 'h7;  // FPGA_VERSION:FPGA_OLDEST_COMPATIBLE_VERSION_MAJOR
-  localparam FPGA_VERSION_LAST_MODIFIED_TIME       = 'h22012612;  // FPGA_VERSION:FPGA_VERSION_LAST_MODIFIED_TIME
+  localparam FPGA_VERSION_LAST_MODIFIED_TIME       = 'h22022411;  // FPGA_VERSION:FPGA_VERSION_LAST_MODIFIED_TIME
 
   // Enumerated type RF_CORE_100M_VERSION
   localparam RF_CORE_100M_VERSION_SIZE = 7;
diff --git a/top/x400/x4xx.v b/top/x400/x4xx.v
index 5c05b9e..c16f551 100644
--- a/top/x400/x4xx.v
+++ b/top/x400/x4xx.v
@@ -2289,7 +2289,7 @@ endmodule
 //      <value name="FPGA_OLDEST_COMPATIBLE_VERSION_MAJOR" integer="7"/>
 //      <value name="FPGA_OLDEST_COMPATIBLE_VERSION_MINOR" integer="0"/>
 //      <value name="FPGA_OLDEST_COMPATIBLE_VERSION_BUILD" integer="0"/>
-//      <value name="FPGA_VERSION_LAST_MODIFIED_TIME"      integer="0x22012612"/>
+//      <value name="FPGA_VERSION_LAST_MODIFIED_TIME"      integer="0x22022411"/>
 //    </enumeratedtype>
 //  </group>
 //</regmap>
diff --git a/top/x400/x4xx_gpio_spi.v b/top/x400/x4xx_gpio_spi.v
index b5866f8..a037ae1 100644
--- a/top/x400/x4xx_gpio_spi.v
+++ b/top/x400/x4xx_gpio_spi.v
@@ -342,13 +342,18 @@ module x4xx_gpio_spi #(
 
   //  Register set_stb for use in 2x domain.
   reg set_stb_2x = 1'b0;
-  reg ctrlport_clk_phase = 1'b0;
+  reg ctrlport_clk_phase = 1'b1;
 
   always @ (posedge ctrlport_clk_2x) begin
-    // Assert strobe only during a single 2x cycle of the
-    // 1x pulse.
-    set_stb_2x         <= ctrlport_clk_phase & set_stb;
-    ctrlport_clk_phase <= ~ctrlport_clk_phase;
+    if (ctrlport_rst) begin
+      ctrlport_clk_phase <= 1'b1;
+      set_stb_2x         <= 1'b0;
+    end else begin
+      // Assert strobe only during a single 2x cycle of the
+      // 1x pulse, when 1x clock is low.
+      set_stb_2x         <= ctrlport_clk_phase & set_stb;
+      ctrlport_clk_phase <= ~ctrlport_clk_phase;
+    end
   end
 
   simple_spi_core #(