It says that the count position of the quadrature encoder is interfaced through a bus, that transmits 4 bytes at a time. I was wondering if anyone had experience or wanted to comment about talking with this chip, with arduino MEGA/UNO.
J
that transmits 4 bytes at a time.
I wouldn't say it transmits 4 bytes at a time because that implies you have no control over it. From what I can see all you do is provide the SEL1/2 signals, drop OEN and read the byte and you can do that in any order at any speed you like.
That will use 10 IO pins which is a lot but it will be fast.
Rob