I study RFNOC gain example, in noc_shell_gain.v there are three sections I want to know whats that means? what's the difference between three-section? can any explain? thanks in advance
//--------------------- // Framework Interface //--------------------- // RFNoC Framework Clocks input wire rfnoc_chdr_clk, input wire rfnoc_ctrl_clk, // NoC Shell Generated Resets output wire rfnoc_chdr_rst, output wire rfnoc_ctrl_rst, // RFNoC Backend Interface input wire [511:0] rfnoc_core_config, output wire [511:0] rfnoc_core_status, // AXIS-CHDR Input Ports (from framework) input wire [(1)*CHDR_W-1:0] s_rfnoc_chdr_tdata, input wire [(1)-1:0] s_rfnoc_chdr_tlast, input wire [(1)-1:0] s_rfnoc_chdr_tvalid, output wire [(1)-1:0] s_rfnoc_chdr_tready, // AXIS-CHDR Output Ports (to framework) output wire [(1)*CHDR_W-1:0] m_rfnoc_chdr_tdata, output wire [(1)-1:0] m_rfnoc_chdr_tlast, output wire [(1)-1:0] m_rfnoc_chdr_tvalid, input wire [(1)-1:0] m_rfnoc_chdr_tready, // AXIS-Ctrl Control Input Port (from framework) input wire [31:0] s_rfnoc_ctrl_tdata, input wire s_rfnoc_ctrl_tlast, input wire s_rfnoc_ctrl_tvalid, output wire s_rfnoc_ctrl_tready, // AXIS-Ctrl Control Output Port (to framework) output wire [31:0] m_rfnoc_ctrl_tdata, output wire m_rfnoc_ctrl_tlast, output wire m_rfnoc_ctrl_tvalid, input wire m_rfnoc_ctrl_tready, //--------------------- // Client Interface //--------------------- // CtrlPort Clock and Reset output wire ctrlport_clk, output wire ctrlport_rst, // CtrlPort Master output wire m_ctrlport_req_wr, output wire m_ctrlport_req_rd, output wire [19:0] m_ctrlport_req_addr, output wire [31:0] m_ctrlport_req_data, input wire m_ctrlport_resp_ack, input wire [31:0] m_ctrlport_resp_data, // AXI-Stream Payload Context Clock and Reset output wire axis_data_clk, output wire axis_data_rst, // Payload Stream to User Logic: in output wire [32*1-1:0] m_in_payload_tdata, output wire [1-1:0] m_in_payload_tkeep, output wire m_in_payload_tlast, output wire m_in_payload_tvalid, input wire m_in_payload_tready, // Context Stream to User Logic: in output wire [CHDR_W-1:0] m_in_context_tdata, output wire [3:0] m_in_context_tuser, output wire m_in_context_tlast, output wire m_in_context_tvalid, input wire m_in_context_tready, // Payload Stream from User Logic: out input wire [32*1-1:0] s_out_payload_tdata, input wire [0:0] s_out_payload_tkeep, input wire s_out_payload_tlast, input wire s_out_payload_tvalid, output wire s_out_payload_tready, // Context Stream from User Logic: out input wire [CHDR_W-1:0] s_out_context_tdata, input wire [3:0] s_out_context_tuser, input wire s_out_context_tlast, input wire s_out_context_tvalid, output wire s_out_context_tready ); //--------------------------------------------------------------------------- // Backend Interface //--------------------------------------------------------------------------- wire data_i_flush_en; wire [31:0] data_i_flush_timeout; wire [63:0] data_i_flush_active; wire [63:0] data_i_flush_done; wire data_o_flush_en; wire [31:0] data_o_flush_timeout; wire [63:0] data_o_flush_active; wire [63:0] data_o_flush_done; backend_iface #( .NOC_ID (32'h00000B16), .NUM_DATA_I (1), .NUM_DATA_O (1), .CTRL_FIFOSIZE ($clog2(32)), .MTU (MTU) ) backend_iface_i ( .rfnoc_chdr_clk (rfnoc_chdr_clk), .rfnoc_chdr_rst (rfnoc_chdr_rst), .rfnoc_ctrl_clk (rfnoc_ctrl_clk), .rfnoc_ctrl_rst (rfnoc_ctrl_rst), .rfnoc_core_config (rfnoc_core_config), .rfnoc_core_status (rfnoc_core_status), .data_i_flush_en (data_i_flush_en), .data_i_flush_timeout (data_i_flush_timeout), .data_i_flush_active (data_i_flush_active), .data_i_flush_done (data_i_flush_done), .data_o_flush_en (data_o_flush_en), .data_o_flush_timeout (data_o_flush_timeout), .data_o_flush_active (data_o_flush_active), .data_o_flush_done (data_o_flush_done) );
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