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[/] [csa/] [trunk/] [rtl/] [ts_sync.v] - Diff between revs 41 and 42
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| Rev 41 |
Rev 42 |
| Line 7... |
Line 7... |
, input rst
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, input rst
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, input en
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, input en
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, input [8-1:0] datain
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, input [8-1:0] datain
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, output reg valid
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, output reg valid
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, output reg head // find ts packet head
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, output reg head // find ts packet head
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, output reg init // the first dec ts packet
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, output reg dec // this ts group need decrypt
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, output reg dec // this ts group need decrypt
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, output reg evenodd // the current key type
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, output reg evenodd // the current key type
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, output reg [8*8-1:0] group
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, output reg [8*8-1:0] group
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, output reg [3:0] bytes // valid bytes in group
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, output reg [3:0] bytes // valid bytes in group
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);
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);
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reg sync;
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reg sync;
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reg valid_s;
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reg need_dec; // current packet need decrypt;
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reg need_dec; // current packet need decrypt;
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reg [8*8-1:0] group_d;
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reg [8*8-1:0] group_d;
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reg [7:0] ts_cnt; //
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reg [7:0] ts_cnt; //
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always @(posedge clk)
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always @(posedge clk)
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if(rst)
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if(rst)
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begin
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begin
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valid<=1'h0;
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valid<=1'h0;
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head<=1'h0;
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head<=1'h0;
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dec<=1'h0;
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dec<=1'h0;
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sync<=1'h0;
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sync<=1'h0;
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need_dec<=1'h0;
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need_dec<=1'h0;
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ts_cnt=8'h0;
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ts_cnt=8'h0;
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init<=1'h0;
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end
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end
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else
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else
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begin
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begin
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head<=1'h0;
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head<=1'h0;
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dec<=1'h0;
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dec<=1'h0;
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valid_s<=1'h0;
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valid<=1'h0;
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valid<=valid_s;
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init<=1'h0;
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if(en)
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if(en)
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begin
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begin
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group_d <= {datain, group_d[8*8-1:1*8] };
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group_d <= {datain, group_d[8*8-1:1*8] };
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group <={datain, group_d[8*8-1:1*8] } ;
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end
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end
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if(sync)
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if(sync)
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begin
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begin
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if(ts_cnt==8'h1&&en)
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if(ts_cnt==8'h1&&en)
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begin
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begin
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need_dec<=1'h0;
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need_dec<=1'h0;
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sync<=1'h0; // ts packet end
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sync<=1'h0; // ts packet end
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valid_s<=1'h1;
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end
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end
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if(ts_cnt[2:0]==3'h1&&en)
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if(ts_cnt[2:0]==3'h1&&en)
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begin
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begin
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valid_s<=1'h1;
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valid<=1'h1;
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dec<=need_dec;
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dec<=need_dec;
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bytes<=4'h8;
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bytes<=4'h8;
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group <={datain, group_d[8*8-1:1*8] } ;
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end
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end
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if(ts_cnt==8'hb1&en)
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init<=1'h1;
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if(en)
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if(en)
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ts_cnt <= ts_cnt - 8'h1;
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ts_cnt <= ts_cnt - 8'h1;
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end
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end
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if(en)
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if(en)
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begin
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begin
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