Apple II Disk II PROM P6 state machine operation

So just how did Woz decode the incoming disk data? Well you should search the web for the story, it is a very interesting story. In short form, Woz used a statemachine in an 8 bit PROM to decode the incoming disk data. This allowed him to greatly reduce the number of components required from all of the designs that existed at the time. It was a real achievement.

Here are the 8 address bits, in order, of the P6 ROM on the disk card while reading data

Apple II Disk II PROM P6 address while reading data

I found the contents of the P6 ROM on the web, but the website that was pointed to was gone. Using the wayback machine, I got a copy of the old webpage from 2004.