extend mcu gen pads

[davidmallasen]

Extend the pad configuration so it includes an optional mapping to the side of the die. An example of this extra configuration is as follows:

module pad_cell_inout #(
    parameter int unsigned PADATTR = 16,
    parameter int unsigned SIDE = 0, // 0: top, 1: right, 2: bottom, 3: left
) (
    input logic pad_in_i,
    input logic pad_oe_i,
    output logic pad_out_o,
    inout logic pad_io,
    input logic [PADATTR-1:0] pad_attributes_i
);
    if (SIDE == 0) begin
        // Instantiate the top mapping pad cell
    end else if (SIDE == 1) begin
        // Instantiate the right mapping pad cell
    end else if
    // ...
endmodule

[davideschiavone]

On top of adding the enum for orientarion in the script, can you also add it in the core_v_mini_mcu_pkg so that the pad design can rely on such SV enum rather than hardwiring 1 2 3 4?

[davidmallasen]

Done @davideschiavone . Should I modify the ones in hw/simulation/ or in hw/fpga/? I see the ones for simulation have an extra parameter that the ones for fpga don't have

[davideschiavone]

I would say both for completeness