Hello, Team,
We would like to know the propagation time of GPIO between 953/954.
Our assumption is no fix H/L and GPIO of Des outputs what was inputted to that of Ser.
There might be some difference caused by external reasons such as length of a cable, though.
Best,
Masaru
Hi Oinaga-san,
Thank you for your inquiry. Could you please confirm your system is configured with GPIO input on the serializer or deserializer? If the GPIO is being sent from 953 -> 954 this will use the forward channel, where as 954 -> 953 will use back channel.
In the DS90UB953 datasheet tables 7-4 and 7-5 contain details regarding GPIO behavior (included a screenshot below as well), however the propagation time (latency) is different based on the configuration which is used.
Best,
Thomas
