Apparatus and method for topography dependent signaling

A method of operation in a memory system, wherein the memory system includes an integrated circuit controller device that communicates with a plurality of memory devices, the method comprising:

• reading information from a supplemental memory device that pertains to the plurality of memory devices;
• determining a first value that represents a sample time adjustment to apply to a sample time of a receiver circuit in the integrated circuit controller device, wherein the sample time adjustment is based on the information from the supplemental memory device;
• and
• storing the first value in a first register on the integrated circuit controller device.

A memory system, comprising:

• a memory module including:
• a plurality of memory devices disposed on the memory module;
• a supplemental memory device that stores information pertaining to the plurality of memory devices;
• and
• a controller device that receives receive data from at least one of the memory devices disposed on the memory module, wherein the controller device includes:
• a receiver circuit to sample the receive data in response to an internal receive signal;
• a locked loop circuit to generate the internal receive signal based on an external signal;
• and
• a first register to store a first value representative of a sampling time adjustment that is applied to the internal receive signal such that the sample time is adjusted to substantially center a data eye of the receive data with respect to the internal receive signal, wherein the first value is determined based on the information pertaining to the plurality of memory devices.

A memory system, comprising:

• a plurality of dynamic random access memory devices;
• and
• an integrated circuit controller device that communicates with the plurality of dynamic random access memory devices, the integrated circuit controller device including:
• a receiver circuit to sample receive data from an external signal line at a sample time that is indicated by an internal receive signal;
• and
• a first register to store a first value representative of a sampling time adjustment that is applied to the sample time by adjusting a phase of the internal receive signal, wherein the first value is determined based on information stored in a serial presence detect memory device.

A memory system, comprising:

• a plurality of dynamic random access memory devices;
• and
• an integrated circuit controller device that communicates with the plurality of dynamic random access memory devices, the integrated circuit controller device including:
• a means for sampling receive data from an external signal line at a sample time that is indicated by an internal receive signal;
• and
• a means for storing a first value representative of a sampling time adjustment that is applied to the sample time by adjusting a phase of the internal receive signal, wherein the first value is determined based on information stored in a serial presence detect memory device.