[beagleboard] What are the "hardware" buffer sizes of the UARTs for the BBB ?

I had a look at the processor specs but did not find anything. I am used to the ARDUINO Mega that has 4 UART with 128 bytes of hardware buffer.

For more options, visit http://beagleboard.org/discuss
You received this message because you are subscribed to the Google Groups "BeagleBoard" group.
To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscribe@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.

Well, what processor specs did you consult?

The Processor datasheeet (http://www.ti.com/product/am3359) says to consult the technical reference manual (spru73h).