Apparatus and method including a memory device having multiple sets of memory banks with duplicated data emulating a fast access time, fixed latency memory device

A game console, comprising:

• a first memory device having a first and second memory bank;
• a second memory device having a first and second memory bank;
• and
• a master device, coupled to the first and second memory devices, capable to write a first set of data to the first memory device and a second set of data to the second memory device during a mode of operation, wherein the first and second sets of data are duplicates,
• wherein the master device outputs a read command to the first memory device and alternatively outputs a write command to the second memory device during the mode of operation.

A memory controller, comprising:

• a first buffer to output a first set of data to a first memory bank in a first and second memory device;
• and,
• a second buffer to output a second set of data to a second memory bank in the first and second memory devices,
• wherein the memory controller outputs a read command to the first memory device and alternatively outputs a write command to the second memory device.

A method comprising:

• writing a first set of data to a first memory bank in a first memory device during a first time interval;
• writing the first set of data to a first memory bank in a second memory device during the first time interval;
• writing a second set of data to a second memory bank in the first memory device during a second time interval;
• writing the second set of data to a second memory bank in the second memory device during the second time interval, wherein the first and second sets of data stored in the first memory device are a duplicate of the first and second sets of data stored in the second memory device, and wherein the first time interval is different than the second time interval;
• reading the first set of data during a first constant time interval, wherein the first constant time interval is approximately a fixed latency of a memory device having a single memory bank;
• and
• reading the second set of data during a second constant time interval, wherein the second constant time interval is approximately the same as the first constant time interval,
• wherein the writing to the first memory device is alternated with the reading from the second memory device.

A method comprising:

• writing a first set of data to a first memory bank in a first memory device during a first time interval;
• writing a second set of data to a second memory bank in the first memory device during the first time interval;
• writing a third set of data to a first memory bank in a second memory device during a second time interval;
• writing a fourth set of data to a second memory bank in the second memory device during the second time interval, wherein the first, second, third and fourth sets of data are duplicates,
• reading from the first memory device during a first constant time interval, wherein the first constant time interval is approximately a fixed latency of a memory device having a single memory bank;
• and
• reading from the second memory device during a second constant time interval, wherein the second constant time interval is approximately the same as the first constant time interval,
• wherein the writing to the first memory device is alternated with the reading from the second memory device.

A method comprising:

• writing a first set of data to a first memory bank in a first memory device during a first time interval;
• writing the first set of data to a second memory bank in the first memory device during a second time interval;
• writing a first set of data to a first memory bank in a second memory device during a third time interval;
• writing the first set of data to a second memory bank in the second memory device during a fourth time interval, wherein the first, second, third and fourth time intervals are different,
• reading from the first memory device during a first constant time interval, wherein the first constant time interval is approximately a fixed latency of a memory device having a single memory bank;
• and
• reading from the second memory device during a second constant time interval, wherein the second constant time interval is approximately the same as the first constant time interval,
• wherein the writing to the first memory device is alternated with the reading from the second memory device.

A method comprising:

• writing a first set of data to a first memory bank in a first memory device during a first time interval;
• writing the first set of data to a second memory bank in the first memory device during the first time interval;
• writing the first set of data to a first memory bank in a second memory device during a second time interval;
• writing the first set of data to a second memory bank in the second memory device during the second time interval, wherein the first and second time intervals are different;
• reading from the first memory device during a first constant time interval, wherein the first constant time interval is approximately a fixed latency of a memory device having a single memory bank;
• and
• reading from the second memory device during a second constant time interval, wherein the second constant time interval is approximately the same as the first constant time interval,
• wherein the writing to the first memory device is alternated with the reading from the second memory device.

A method comprising:

• writing a first set of data to a first memory bank in a first plurality of memory banks in a first memory device during a first time interval;
• writing the first set of data to a first memory bank in a first plurality of memory banks in a second memory device during a second time interval;
• writing the first set of data to a first memory bank in a first plurality of memory banks in a third memory device during a third time interval;
• writing the first set of data to a first memory bank in a plurality of memory banks in a fourth memory device during a fourth time interval, wherein the first, second, third and fourth time intervals are different,
• reading from the first memory device during a first constant time interval, wherein the first constant time interval is approximately a fixed latency of a memory device having a single memory bank;
• reading from the second memory device during a second constant time interval;
• reading from the third memory device during a third constant time interval;
• and
• reading from the fourth memory device during a fourth constant time interval, wherein the first, second, third and fourth constant time intervals are approximately the same,
• wherein the writing to the first memory device is alternated with the reading from the second memory device.

A memory apparatus, comprising:

• a first memory device having a first and second memory bank;
• a second memory device having a first and second memory bank;
• and
• means for transferring data from the first memory device during a constant time interval, wherein the constant time interval is approximately a fixed latency of a memory device having a single memory bank,
• wherein means for transferring data includes means for issuing a read command to the first memory device and alternatively issuing a write command to the second memory.