Describe the process of writing information from memory to the ethernet buffer for transmission. The host puts a message in the current buffer, writes the address of the buffer in the descriptor entry if necessary and swaps its owner.
Which register bits have to be set? OWN set to one to indicate the host owns the information and it is cleared after the transmission has occurred.
What errors can occur during transmission? Which bits are set to make note of this?

BITS	CAUSE
BABL	If the transmission period exceeds that required for the maximum packert length
TDR	check cable fault
RTRY	retry error indicates that 16 attempted transmissions have all encounteredcollisions.
LCAR	loss of carrier
LCOL	late collision
UFLO	underflow error, occurs when the data transfer from memory occurs at a rate greater than that which the transmitter can handle resulting in data truncation.
BUFF	buffer error, set by the controller when the current packet does not conatin the ENP flag and the next packet contains the STP flag (start of new packet upcoming but the current one has not terminated ).
ERR	OR of the LCOL, LCAR, UFLO and RTRY