Can you explain what is in that link a little better?

Hi everyone, The ESP-IDF Programming Guide says the ESP-PSRAM chip connections for the ESP32D2W* chips are "TBD". https://esp-idf.readthedocs.io/en/latest/api-guides/external-ram.html Has it been determined yet? If so, what are the connections? Or, where can I find them? And, is it possible to creat...