Used to read and write to the Configuration Space registers. When you disable the Config Management Interface option, the following ports are removed from the core:
• cfg_mgmt_addr
• cfg_mgmt_write
• cfg_mgmt_write_data
• cfg_mgmt_byte_enable
• cfg_mgmt_read
• cfg_mgmt_read_data
• cfg_mgmt_read_write_done
• cfg_mgmt_type1_cfg_reg_access