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Diffstat (limited to 'serdes/serdes.v')
-rw-r--r-- | serdes/serdes.v | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/serdes/serdes.v b/serdes/serdes.v new file mode 100644 index 000000000..81e9f2b43 --- /dev/null +++ b/serdes/serdes.v @@ -0,0 +1,65 @@ + +// SERDES TX and RX along with all flow control logic + +module serdes + #(parameter TXFIFOSIZE = 9, + parameter RXFIFOSIZE = 9) + (input clk, input rst, + // TX side + output ser_tx_clk, output [15:0] ser_t, output ser_tklsb, output ser_tkmsb, + input [31:0] rd_dat_i, output rd_read_o, output rd_done_o, output rd_error_o, + input rd_sop_i, input rd_eop_i, + // RX side + input ser_rx_clk, input [15:0] ser_r, input ser_rklsb, input ser_rkmsb, + output [31:0] wr_dat_o, output wr_write_o, output wr_done_o, output wr_error_o, + input wr_ready_i, input wr_full_i, + + output [15:0] tx_occupied, output tx_full, output tx_empty, + output [15:0] rx_occupied, output rx_full, output rx_empty, + + output [31:0] debug0, + output [31:0] debug1); + + wire [15:0] fifo_space; + wire xon_rcvd, xoff_rcvd, inhibit_tx, send_xon, send_xoff, sent; + wire [31:0] debug_rx, debug_tx; + + serdes_tx #(.FIFOSIZE(TXFIFOSIZE)) serdes_tx + (.clk(clk),.rst(rst), + .ser_tx_clk(ser_tx_clk),.ser_t(ser_t),.ser_tklsb(ser_tklsb),.ser_tkmsb(ser_tkmsb), + .rd_dat_i(rd_dat_i),.rd_read_o(rd_read_o),.rd_done_o(rd_done_o),.rd_error_o(rd_error_o), + .rd_sop_i(rd_sop_i),.rd_eop_i(rd_eop_i), + .inhibit_tx(inhibit_tx), .send_xon(send_xon), .send_xoff(send_xoff), .sent(sent), + .fifo_occupied(tx_occupied),.fifo_full(tx_full),.fifo_empty(tx_empty), + .debug(debug_tx) ); + + serdes_rx #(.FIFOSIZE(RXFIFOSIZE)) serdes_rx + (.clk(clk),.rst(rst), + .ser_rx_clk(ser_rx_clk),.ser_r(ser_r),.ser_rklsb(ser_rklsb),.ser_rkmsb(ser_rkmsb), + .wr_dat_o(wr_dat_o),.wr_write_o(wr_write_o),.wr_done_o(wr_done_o),.wr_error_o(wr_error_o), + .wr_ready_i(wr_ready_i),.wr_full_i(wr_full_i), + .fifo_space(fifo_space), .xon_rcvd(xon_rcvd), .xoff_rcvd(xoff_rcvd), + .fifo_occupied(rx_occupied),.fifo_full(rx_full),.fifo_empty(rx_empty), + .debug(debug_rx) ); + + serdes_fc_tx serdes_fc_tx + (.clk(clk),.rst(rst), + .xon_rcvd(xon_rcvd),.xoff_rcvd(xoff_rcvd),.inhibit_tx(inhibit_tx) ); + + serdes_fc_rx #(.LWMARK(32),.HWMARK(128)) serdes_fc_rx + (.clk(clk),.rst(rst), + .fifo_space(fifo_space),.send_xon(send_xon),.send_xoff(send_xoff),.sent(sent) ); + + //assign debug = { fifo_space, send_xon, send_xoff, debug_rx[13:0] }; + //assign debug = debug_rx; + + assign debug0 = { { debug_tx[3:0] /* xfer_active,state[2:0] */, rd_read_o, rd_done_o, rd_sop_i, rd_eop_i }, + { debug_tx[5:4] /* full,empty */ , inhibit_tx, send_xon, send_xoff, sent, ser_tkmsb, ser_tklsb}, + { ser_t[15:8] }, + { ser_t[7:0] } }; + + assign debug1 = { { debug_rx[7:0] }, /* odd,xfer_active,sop_i,eop_i,error_i,state[2:0] */ + { wr_write_o, wr_error_o, wr_ready_i, wr_done_o, xon_rcvd, xoff_rcvd, ser_rkmsb, ser_rklsb }, + { ser_r[15:8] }, + { ser_r[7:0] } }; +endmodule // serdes |