I'm new to the Raspberry Pi community but I am looking at using the Pi to control and read a vintage disk drive. The drive in question is a CDC 9762 - an 80Mb drive first produced in the early 1970s. The interface spec is defined in ANSI standard X3.91M and reportedly runs at 9.6Mbit/s. The signals are driven differentially (+12v/-12v for logic 1) so I know I need to build some kind of translation to drive (and receive) these signals from 3.3v.
So my initial question is - what sort of throughput could I expect using the GPIO on a Pi? I currently have a Pi Zero but suspect the Pi 3 might be the one to go for? Thats if a throughput of 9.6Mbit/s is achievable... - however it doesn't have to be sustained throughput, not that that would make a difference...!
Any help or comments much appreciated!