MAX

A parameterizable SystemVerilog module for finding the maximum value and its index from chunked input data.

Features

• Configurable input width and chunk size
• Balanced tree reduction for optimal timing
• Optional pipelining and input/output registers
• Support for signed/unsigned comparison
• Configurable tie-breaking (first vs last index wins)
• LSB-first or MSB-first chunking

Usage

max_idx_tree #(
    .TOTAL_WIDTH      (60),
    .CHUNK_WIDTH      (6),
    .REQUIRE_MULTIPLE (1),
    .SIGNED_COMPARE   (0),
    .TIE_HIGH_INDEX   (0),
    .PIPE_STAGES      (0),
    .REGISTER_INPUT   (0),
    .REGISTER_OUTPUT  (0),
    .MSB_FIRST        (0)
) max_finder (
    .clk(clk),
    .rst_n(rst_n),
    .ce_i(1'b1),
    .valid_i(valid),
    .din(data_in),
    .valid_o(valid_out),
    .idx_o(max_index),
    .val_o(max_value)
);

Testing

Compile and run the testbench (combinational):

bash run_max_idx_tree_tb.sh