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-rw-r--r--control_lib/newfifo/ll8_to_fifo19.v73
1 files changed, 0 insertions, 73 deletions
diff --git a/control_lib/newfifo/ll8_to_fifo19.v b/control_lib/newfifo/ll8_to_fifo19.v
deleted file mode 100644
index af3b91afb..000000000
--- a/control_lib/newfifo/ll8_to_fifo19.v
+++ /dev/null
@@ -1,73 +0,0 @@
-
-module ll8_to_fifo19
- (input clk, input reset, input clear,
- input [7:0] ll_data,
- input ll_sof_n,
- input ll_eof_n,
- input ll_src_rdy_n,
- output ll_dst_rdy_n,
-
- output [18:0] f19_data,
- output f19_src_rdy_o,
- input f19_dst_rdy_i );
-
- localparam XFER_EMPTY = 0;
- localparam XFER_HALF = 1;
- localparam XFER_HALF_WRITE = 3;
-
- // Why anybody would use active low in an FPGA is beyond me...
- wire ll_sof = ~ll_sof_n;
- wire ll_eof = ~ll_eof_n;
- wire ll_src_rdy = ~ll_src_rdy_n;
- wire ll_dst_rdy;
- assign ll_dst_rdy_n = ~ll_dst_rdy;
-
- wire xfer_out = f19_src_rdy_o & f19_dst_rdy_i;
- wire xfer_in = ll_src_rdy & ll_dst_rdy;
-
- reg hold_sof;
- wire f19_sof, f19_eof, f19_occ;
-
- reg [1:0] state;
- reg [7:0] hold_reg;
-
- always @(posedge clk)
- if(ll_src_rdy & (state==XFER_EMPTY))
- hold_reg <= ll_data;
-
- always @(posedge clk)
- if(ll_sof & (state==XFER_EMPTY))
- hold_sof <= 1;
- else if(xfer_out)
- hold_sof <= 0;
-
- always @(posedge clk)
- if(reset | clear)
- state <= XFER_EMPTY;
- else
- case(state)
- XFER_EMPTY :
- if(ll_src_rdy)
- if(ll_eof)
- state <= XFER_HALF_WRITE;
- else
- state <= XFER_HALF;
- XFER_HALF :
- if(ll_src_rdy & f19_dst_rdy_i)
- state <= XFER_EMPTY;
- XFER_HALF_WRITE :
- if(f19_dst_rdy_i)
- state <= XFER_EMPTY;
- endcase // case (state)
-
- assign ll_dst_rdy = (state==XFER_EMPTY) | ((state==XFER_HALF)&f19_dst_rdy_i);
- assign f19_src_rdy_o = (state==XFER_HALF_WRITE) | ((state==XFER_HALF)&ll_src_rdy);
-
- assign f19_sof = hold_sof | (ll_sof & (state==XFER_HALF));
- assign f19_eof = (state == XFER_HALF_WRITE) | ll_eof;
- assign f19_occ = (state == XFER_HALF_WRITE);
-
- assign f19_data = {f19_occ,f19_eof,f19_sof,hold_reg,ll_data};
-
-endmodule // ll8_to_fifo19
-