A problem about gtp alignment

now i'm using a gtp to transmit 32bit(with 8b/10b encodingan and through the sfp and fiber ) data on every rising of TXUSRCLK20.code is like following.but no matter which code i use when state is 2'b10( 2'b10:begin tile0_txdata0_i<=32'h0abc0908;TXCHARISK0_IN<=4'h4; state<=2'b11;end 2'b10:begin tile0_txdata0_i<=32'h0a0908bc;TXCHARISK0_IN<=4'h1; state<=2'b11;end
2'b10:begin tile0_txdata0_i<=32'h09bc08bc;TXCHARISK0_IN<=4'h5; state<=2'b11;end ),
i can't guarantee the receiver output at the other end (with the ALIGN_COMMA_WORD attribute =2 )will be 32'h0abc0908, 32'h0a0908bc or 32'h09bc08bc,it maybe ****0abc,08bc****,****09bc.so i'm not sure the following output will be aligned.and what can i do to make sure output will be aligned?
always@(posedge tile0_txusrclk20_i or negedge tile0_resetdone0_i )
begin
if(tile0_resetdone0_i==1'b0)
begin
state<=2'b00;
tile0_txdata0_i<=32'h00000000;
TXCHARISK0_IN<=4'h0;
end
else
begin
case(state)
2'b00:begin tile0_txdata0_i<=32'h03020100;TXCHARISK0_IN<=4'h0;state<=2'b01; end
2'b01:begin tile0_txdata0_i<=32'h07060504;TXCHARISK0_IN<=4'h0;state<=2'b10; end
2'b10:begin tile0_txdata0_i<=32'h0abc0908;TXCHARISK0_IN<=4'h4;state<=2'b11;end
2'b11:begin tile0_txdata0_i<=32'h0000ffff;TXCHARISK0_IN<=4'h0;end
endcase
end
end

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