From a3ebf209706e424df88a0f5abbb12b80147c922b Mon Sep 17 00:00:00 2001 From: Matt Ettus Date: Wed, 2 Sep 2009 17:23:12 -0700 Subject: cascadefifo.v wasn't used, only the double cascade version. fifo_2clock.v and fifo_2clock.v are empty --- control_lib/cascadefifo.v | 50 ----------------------------------------------- 1 file changed, 50 deletions(-) delete mode 100644 control_lib/cascadefifo.v (limited to 'control_lib/cascadefifo.v') diff --git a/control_lib/cascadefifo.v b/control_lib/cascadefifo.v deleted file mode 100644 index c1a4ab335..000000000 --- a/control_lib/cascadefifo.v +++ /dev/null @@ -1,50 +0,0 @@ - - -// This FIFO exists to provide an intermediate point for the data on its -// long trek from one RAM (in the buffer pool) to another (in the longfifo) -// The shortfifo is more flexible in its placement since it is based on -// distributed RAM -// This one should only be used on transmit side applications. I.e. tx_mac, tx_dsp, etc. -// Spartan 3's have slow routing.... -// If we REALLY need to, we could also do this on the output side, -// with for the receive side stuff - -module cascadefifo - #(parameter WIDTH=32, SIZE=9) - (input clk, input rst, - input [WIDTH-1:0] datain, - output [WIDTH-1:0] dataout, - input read, - input write, - input clear, - output full, - output empty, - output [15:0] space, - output [15:0] occupied); - - wire [WIDTH-1:0] data_int; - wire empty_int, full_int, transfer; - wire [4:0] short_space, short_occupied; - wire [15:0] long_space, long_occupied; - - shortfifo #(.WIDTH(WIDTH)) shortfifo - (.clk(clk),.rst(rst),.clear(clear), - .datain(datain), .write(write), .full(full), - .dataout(data_int), .read(transfer), .empty(empty_int), - .space(short_space),.occupied(short_occupied) ); - - longfifo #(.WIDTH(WIDTH),.SIZE(SIZE)) longfifo - (.clk(clk),.rst(rst),.clear(clear), - .datain(data_int), .write(transfer), .full(full_int), - .dataout(dataout), .read(read), .empty(empty), - .space(long_space),.occupied(long_occupied) ); - - assign transfer = ~empty_int & ~full_int; - - assign space = {11'b0,short_space} + long_space; - assign occupied = {11'b0,short_occupied} + long_occupied; - -endmodule // cascadefifo - - - -- cgit v1.2.3