purpose of some top-level signals

[buttercutter]

@avakar Would you be able to add some code comment / documentation on the purpose of some top-level signals ? otherwise user would need to dive into your internals of your softcore

For example, what is purpose of _usbaddress , endpoint , setup ?

module usb(
    input rst_n,
    input clk_48,

    input rx_j,
    input rx_se0,

    output tx_en,
    output tx_j,
    output tx_se0,

    input[6:0] usb_address,

    output usb_rst,

    output reg transaction_active,
    output reg[3:0] endpoint,
    output reg direction_in,
    output reg setup,
    input data_toggle,

    input[1:0] handshake,

    output reg[7:0] data_out,
    input[7:0] data_in,
    input data_in_valid,
    output reg data_strobe,
    output reg success
    );

[buttercutter]

@avakar why are both usb_ep_banked.v and usb_ep.v not used ?

[hhchen0924]

what is purpose of usb_address , endpoint , setup ?