Systems and methods to respond to error detection

A method of responding to error detection, the method comprising:

• receiving first data at a first memory controller port in response to a read command sent from the first memory controller port;
• reissuing the read command as a second read command from the first memory controller port after determining that the first data contains an uncorrectable error;
• receiving second data at the first memory controller port in response to the second read command;
• issuing a third read command from a second memory controller port after determining that the second data contains a second uncorrectable error;
• and
• receiving third data at the second memory controller port in response to the third read command.

A method comprising:

• receiving, in response to a detected error, a retrain request from a memory controller;
• issuing a first command to refresh a subset of a plurality of memory ranks that have not received a refresh subsequent to the plurality of memory ranks exiting a first self-timed refresh mode;
• and
• issuing a second command instructing the plurality of memory ranks to enter a second self-timed refresh mode, wherein the second command is different from the first command.