UART WiFi bridge mode, but with I2C?

[MrPixieHeart]

Up to now I have been using the ESP32 in vintage computers using UART0 with CTS/RTS hardware handshaking, so using the AT command set I can access WiFi features. I am quite comfortable accessing the WiFi features this way. It's my comfortable place.

I now have designed a simple I2C interface for this vintage computer, that can operate a LOT more quickly than my janky old serial interface. For me I2C has a lot of advantages - a couple of low cost 5V tolerant 3V3 devices replacing RS-232 to 3.3v TTL level shifting, much higher speeds than the inbuilt RS-232's 9,600 baud limit, better buffering/FIFOs, etc.

Is it possible to use an I2C port in the same way as a bridge mode to use WiFi and the AT command set?

If so, do you have any experience with this? Do you have any advice, eg: which end to run as master or slave?

The target device I am looking at is the NXP PCA9564, (https://www.nxp.com/docs/en/data-sheet/PCA9564.pdf) connected to either a 68008 or 68EC020 - and later a 68EC060. My goal is to get the potential bandwidth up from around 850 bytes/sec to potentially the full speed the ESP32 can support. 20mbytes/sec+?

Thanks for any advice/pointers offered. I've googled a lot and not found any answers.

[WiFive]

Check out parallel modes of i2s aka camera mode and lcd mode.