You have to do that for all high-speed multipin interfaces. Generally, once you get past roughly 100 MHZ, it is good practice to match the lengths as well as po

You have to do that for all high-speed multipin interfaces. Generally, once you get past roughly 100 MHZ, it is good practice to match the lengths as well as possible, even though it probably doesn't matter until a couple of gigahertz (it depends on many factors, but generally, signals move at 15 cm per nanosecond on PCBs).