Any info on the protocol/messaging between FT100 head and body?

"David Feldman wb0gaz-/[email protected] [FT100]" <[email protected]> Sat, 2 Mar 2019 16:05:49 +0000 (UTC)
Newsgroups gmane.recreation.radio.hardware.yaesu.ft100
Message-ID <[email protected]>
I assume proprietary, and probably not async, but curious if anyone has experimented with the communications link between FT100 and it's control head?

(considering whether the body unit could be controlled by a different computing device than the OEM front panel.)

Thanks,

73 Dave WB0GAZ wb0gaz-/[email protected]