摘要:
Method and apparatus for use with buffered memory modules are included among the embodiments. In exemplary systems, the memory module has a buffer that receives memory commands and data, and then presents those commands and data to physical memory devices through a separate interface. The buffer has the capability to accept an implicit memory command, i.e., a command that does not contain a fully-formed memory device command, but instead instructs the memory module buffer to form one or more fully-formed memory device commands to perform memory operations. Substantial memory channel bandwidth can be saved, for instance, with a command that instructs a memory module to clear a region of memory or copy a region to a second area in memory. Other embodiments are described and claimed.
摘要:
Apparatus, systems, and methods to reduce power delivery noise for partial writes are described. In one embodiment, an apparatus comprises a processor and a memory control logic to insert one or more dummy unit intervals into data in a write operation when a number of state transitions between adjacent unit intervals exceeds a threshold. Other embodiments are also disclosed and claimed.
摘要:
Methods and apparatus to provide heterogeneous memory die stacking for energy efficient computing are described. In one embodiment, a Phase Change Memory with Switch (PCMS) die is coupled to a Dynamic Random Access Memory (DRAM) die and a Central Processing Unit (CPU) die. CPU checkpointing state data is stored in the PCMS die first before transferring the checkpointing data to a backup media at a later and more extended time. Other embodiments are also disclosed and claimed.
摘要:
Techniques and mechanisms for evaluating I/O buffer circuits. In an embodiment, test rounds are performed for a device including the I/O buffer circuits, each of the test rounds comprising a respective loop-back test for each of the I/O buffer circuits. Each of the test rounds corresponds to a different respective delay between a transmit clock signal and a receive clock signal. In another embodiment, a first test round indicates a failure condition for at least one I/O buffer circuit and a second test round indicates the failure condition for each of the I/O buffer circuits. Evaluation of the I/O buffer circuits determines whether the device satisfies a test condition, where the determining is based on a difference between the delay corresponding to the first test round and the delay corresponding to the second test round.
摘要:
Techniques and mechanisms for evaluating I/O buffer circuits. In an embodiment, test rounds are performed for a device including the I/O buffer circuits, each of the test rounds comprising a respective loop-back test for each of the I/O buffer circuits. Each of the test rounds corresponds to a different respective delay between a transmit clock signal and a receive clock signal. In another embodiment, a first test round indicates a failure condition for at least one I/O buffer circuit and a second test round indicates the failure condition for each of the I/O buffer circuits. Evaluation of the I/O buffer circuits determines whether the device satisfies a test condition, where the determining is based on a difference between the delay corresponding to the first test round and the delay corresponding to the second test round.
摘要:
Memory apparatus and methods utilizing multiple bit lanes may redirect one or more signals on the bit lanes. A memory agent may include a redrive circuit having a plurality of bit lanes, a memory device or interface, and a fail-over circuit coupled between the plurality of bit lanes and the memory device or interface.
摘要:
A memory device may determine its device ID in response to the order of a received training pattern. The training pattern may be transmitted over swizzled signal lines to multiple memory devices arranged in a logical stack. Each memory device may be packaged on a substrate having the swizzled signal lines. The memory devices may be physically stacked or planar. Other embodiments are described and claimed.
摘要:
Some embodiments may include a memory with a first memory device and data pins, and a second memory device coupled with some of the data pins of the first memory device, allowing the first memory device to operate as a data repeater for the second memory device. An embodiment may comprise a memory device with a memory die, a first plurality of data pins to operate as input and output to the memory die, and a second plurality of data pins to function as a repeater. An embodiment method may involve configuring a first memory device as a repeater, sending data to the first memory device, and forwarding the data to a second memory device.
摘要:
Embodiments described herein provide a power saving state for a memory system. For example, a memory system may derive clocking information from a training pattern sent over a memory channel. A memory may comprise a link to receive training frames, and circuitry to derive a clock from the training frames, and place the memory module in a low power state between training frames. Embodiments as described herein may utilize periodic training frames to implement a power saving state on the channel or the memory system, either in whole or in part.
摘要:
A memory agent may include a link interface having bit lanes and may utilize more than one bit lane to determine if another memory agent is also connected to the same link interface.