Squashed B200 FPGA Source. Code from Josh Blum, Ian Buckley, and Matt Ettus.

1 files changed, 35 insertions, 0 deletions

diff --git a/fpga/usrp3/lib/control/setting_reg.v b/fpga/usrp3/lib/control/setting_reg.v
new file mode 100644
index 000000000..1664f54e2
--- /dev/null
+++ b/fpga/usrp3/lib/control/setting_reg.v
@@ -0,0 +1,35 @@
+//
+// Copyright 2011-2012 Ettus Research LLC
+//
+
+
+//----------------------------------------------------------------------
+//-- A settings register is a peripheral for the settings register bus.
+//-- When the settings register sees strobe abd a matching address,
+//-- the outputs will be become registered to the given input bus.
+//----------------------------------------------------------------------
+
+module setting_reg
+  #(parameter my_addr = 0, 
+    parameter awidth = 8,
+    parameter width = 32,
+    parameter at_reset=0)
+    (input clk, input rst, input strobe, input wire [awidth-1:0] addr,
+     input wire [31:0] in, output reg [width-1:0] out, output reg changed);
+   
+   always @(posedge clk)
+     if(rst)
+       begin
+	  out <= at_reset;
+	  changed <= 1'b0;
+       end
+     else
+       if(strobe & (my_addr==addr))
+	 begin
+	    out <= in[width-1:0];
+	    changed <= 1'b1;
+	 end
+       else
+	 changed <= 1'b0;
+   
+endmodule // setting_reg