entity Ethernet(     rst: in,     tx_clk: in,     LED1: out,     LED2: out,     LED3: out,     LED4: out,     CS: out,     spi_bit: out, // MOSI
    spi_clk: out, ) {
                    on tx_clk.negedge {
                    fsm {
                        loop {
                             if dummy > 0 {
                                if status_vector {
                                   await spi_ready;
                                }
                           }
                            yield;
                        }
                    }
                }
                 }