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-rw-r--r--fpga/usrp3/lib/control/setting_reg.v35
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diff --git a/fpga/usrp3/lib/control/setting_reg.v b/fpga/usrp3/lib/control/setting_reg.v
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+//
+// 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