help to find programming guide for Voice Recognition module

Would someone please help me to find the "programming" documentation for the DF2301QG Voice Recognition module.
I'm NOT talking about the general documentation that describes how to tell it the voice commands.

I need to find the list of ADDRESES within the module that will allow me to experiment with ALL of the possible parameters.

From Github, I downloaded some code that gives me some of that info, but I can't find any category on this website that describes in detail the "programming addresses".
For instance the downloaded code describes address "6" as the address to select how much time elapses before the module needs another "hello robot" to activate it again. 

It times out after 4 minutes and that seems to be the maximum.
If I want to extend that time indefinately - How is that done?

I tried writing that line of code repeatedly in the programming loop as the microcontroller polls the device, but it didn't work.

This is the line of code I would use to select the timeout time using the I2C bus in micropython.
i2c.writeto_mem(0x64, 6, b'\xff')
The maximum seems to be "ff" which gives the 4 minute timeout.

On all of the other websites of module makers, they have either a "support" or "documentation" major category, but on this website I haven't been able to find either of those.

I got a lot of questions and most of those would probably be answered if I had that very specific info about the "addresses" and "parameters" for programming the device.