I am writing a driver for the ENC28J60 for use with the TCPnet Keil TCP/IP library. In the example code in their documentation they call 'LREG' all over the place. I can't seem to find any documentation about this line of code. The place I first saw it was in the copy sequence (between memory and the queue) in the demo poll_ethernet() code. I am guessing it is a macro of some sorts, but any help is appreciated.