I've got an application right now that's using a bytewide output port on the Teensy 3.6, to ensure that all of the bits of output change at the same time. I managed to figure out how to find enough pins on GPIOD_PDOR to drive 8 signals. It involved some puzzling over the schematic.

Is there a corresponding register on the T 4.0, that I can use like GPIOD_PDOR? The schematic shows ports that look like B0 and B1. Can I use them the same way, and what's the correct register name that I should use?