From a170b9b42345794429486dd4f3316e84ea2cc871 Mon Sep 17 00:00:00 2001 From: Josh Blum Date: Fri, 22 Jan 2010 11:46:58 -0800 Subject: Moved usrp1 fpga files into usrp1 subdir. --- usrp1/sdr_lib/setting_reg_masked.v | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 usrp1/sdr_lib/setting_reg_masked.v (limited to 'usrp1/sdr_lib/setting_reg_masked.v') diff --git a/usrp1/sdr_lib/setting_reg_masked.v b/usrp1/sdr_lib/setting_reg_masked.v new file mode 100644 index 000000000..72f7e21eb --- /dev/null +++ b/usrp1/sdr_lib/setting_reg_masked.v @@ -0,0 +1,26 @@ + + +module setting_reg_masked + ( input clock, input reset, input strobe, input wire [6:0] addr, + input wire [31:0] in, output reg [31:0] out, output reg changed); +/* upper 16 bits are mask, lower 16 bits are value + * Note that you get a 16 bit register, not a 32 bit one */ + + parameter my_addr = 0; + + always @(posedge clock) + if(reset) + begin + out <= #1 32'd0; + changed <= #1 1'b0; + end + else + if(strobe & (my_addr==addr)) + begin + out <= #1 (out & ~in[31:16]) | (in[15:0] & in[31:16] ); + changed <= #1 1'b1; + end + else + changed <= #1 1'b0; + +endmodule // setting_reg_masked -- cgit v1.2.3