Memory control component with dynamic command/address signaling rate

A method of operation within a memory control component, the method comprising:

• outputting a timing signal to first and second memory components to establish respective first and second timing domains therein;
• determining whether skew between the first and second timing domains exceeds a threshold;
• and
• outputting command/address values to the first and second memory components via a command/address bus at either a first signaling rate or a second signaling rate according to whether the timing skew between the first and second timing domains is determined to exceed the threshold, the first and second signaling rates being unequal.

A memory control component comprising:

• a timing signal transmit circuit to output a timing signal to first and second memory components to establish respective first and second timing domains therein;
• timing calibration logic to determine whether skew between the first and second timing domains exceeds a threshold;
• and
• command/address transmit circuitry to output command/address values to the first and second memory components via a command/address bus at either a first signaling rate or a second signaling rate according to whether the timing skew between the first and second timing domains is determined to exceed the threshold, the first and second signaling rates being unequal.

A memory control component comprising:

• means for outputting a timing signal to first and second memory components to establish respective first and second timing domains therein;
• means for determining whether skew between the first and second timing domains exceeds a threshold;
• and
• means for outputting command/address values to the first and second memory components via a command/address bus at either a first signaling rate or a second signaling rate according to whether the timing skew between the first and second timing domains is determined to exceed the threshold, the first and second signaling rates being unequal.