Data mask as write-training feedback flag

A method of WRITE training comprising the steps of:

• sending a plurality of predetermined data patterns to a memory device, wherein each predetermined data pattern is sent upon the occurrence of a master clock;
• sending a plurality of strobe signals, wherein the strobe signals are delayed relative to the master clock, and wherein the delay of at least two strobe signals are different;
• receiving the plurality of data patterns, wherein each data pattern is clocked in by a different strobe signal;
• comparing the received plurality of data patterns to the plurality of predetermined data patterns, wherein each received data pattern is compared to an associated predetermined data pattern to determine a comparison result;
• and
• setting the state of a data mask pin based on the comparison results.

A method of WRITE training, comprising the steps of setting a memory mode of a memory device to a WRITE TRAINING mode;

• converting the status of the memory device data mask pin to an output when the WRITE TRAINING mode is entered;
• sending a plurality of predetermined data patterns to the memory device, wherein each predetermined data pattern is sent upon the occurrence of a master clock;
• sending a plurality of strobe signals to the memory device, wherein the strobe signals are delayed relative to a master clock, and wherein the delay of at least two strobe signals are different;
• receiving the plurality of bit patterns, wherein each bit pattern is clocked in by a different strobe signal;
• comparing the received plurality of bit patterns to the plurality of predetermined bit patterns, wherein each received bit pattern is compared to an associated predetermined bit pattern to determine a comparison result;
• and
• setting the state of a data mask pin based on the comparison results.