Kairolith hero animatic

module rx_dma #(parameter DESC_W = 128) ( input logic clk, input logic rst_n, input logic [DESC_W-1:0] desc_in, input logic desc_valid, output logic desc_ready, output logic irq_raise ); // interrupt throttle: hold irq until timer expires logic [15:0] itr_cnt; logic itr_armed; always_ff @(posedge clk or negedge rst_n) begin if (!rst_n) begin itr_cnt <= '0; itr_armed <= 1'b0; end else if (wb_done && !itr_armed) begin itr_cnt <= ITR_DEFAULT; itr_armed <= 1'b1; end else if (itr_armed && itr_cnt != 0) begin itr_cnt <= itr_cnt - 1'b1; end end assign irq_raise = itr_armed && (itr_cnt == 0); assign desc_ready = !fifo_full; always_ff @(posedge clk) begin if (desc_valid && desc_ready) fifo[wr_ptr] <= desc_in; end endmodule