Abstract:
Techniques for multiplexing and demultiplexing signals for optical transport networks are presented. A network component comprises a multiplexer component that multiplexes a plurality of signals having a first signal format to produce a multiplexed signal in accordance with a second signal format, while maintaining error correction code (ECC) of such signals and without decoding such signals and associated ECC. The multiplexer component interleaves the plurality of signals with stuffing and adds overhead without generating new ECC. A second network component receives the multiplexed signal as part of a frame in accordance with the second signal format. A demultiplexer component of the second network component demultiplexes the multiplexed signal using the original ECC associated with the plurality of signals, wherein the second network element removes and filters the stuffing from the multiplexed signal and produces a plurality of demultiplexed signals as an output, in accordance with the first signal format.
Abstract:
Various embodiments provide for a system on a chip or a server on a chip that performs flow pinning, where packets or streams of packets are enqueued to specific queues, wherein each queue is associated with a respective core in a multiprocessor/multi-core system or server on a chip. With each stream of packets, or flow, assigned to a particular processor, the server on a chip can process and intake packets from multiple queues from multiple streams from the same single Ethernet interface in parallel. Each of the queues can issue interrupts to their assigned processors, allowing each of the processors to receive packets from their respective queues at the same time. Packet processing speed is therefore increased by receiving and processing packets in parallel for different streams.
Abstract:
Systems and methods are provided that facilitate retrieval of a hash index in an electronic device. The system contains an addressing component that generates a hash index as a function of an exclusive-or identity. The addressing component can retrieve the hash index as a function of a tag value. Accordingly, required storage area can be reduced and electronic devices can be more efficient.
Abstract:
Techniques for calibrating interleaved analog-to-digital converter (ADC) arrays are presented. A transceiver comprises an ADC component comprising an array of interleaved sub-ADCs, and an auxiliary path associated with an auxiliary sub-ADC used to facilitate calibrating a sampling array by comparing the auxiliary path signal to signals of the sub-ADCs in the array. A calibration component employs a phase-interpolator and analog delay lines to adjust the auxiliary sub-ADC to enable the auxiliary sub-ADC to be lined up to any one of the sampling instants of the sampling array. The calibration component compares the auxiliary signal to sub-ADC signals, determines path differences between the sub-ADC paths based on the comparison results, and calibrates the sub-ADCs and sub-ADC paths to reduce the path differences to mitigate distortion in a digital stream produced from combining the digital substreams produced by the sub-ADCs in the array.
Abstract:
Systems and methods of mitigating precursor ISIs for communication channels having time-variant precursor channel responses using digital circuit designs. A phase adaptation circuit is utilized in a receiver and configured to generate a phase control signal responsive to an input signal and based on the current precursor channel response. The phase control signal controls the phase shift of a recovered clock to a position where the precursor ISI at h(−1) is minimized. The phase control signal corresponds to a “feed-forward equalization (FFE) first tap weight” obtained via a digital least-mean-square (LMS) process.
Abstract:
Various aspects provide for generating a clock signal for a hold latch. A latch pulse generator generates a pulse clock signal based on a first clock signal associated with a first flip-flop component and a second clock signal associated with a second flip-flop component. A hold latch component receives the pulse clock signal generated by the latch pulse generator and generates a data signal that is transmitted to the second flip-flop component.
Abstract:
Systems and methods are provided that facilitate retrieval of a hash index in an electronic device. The system contains an addressing component that generates a hash index as a function of an exclusive-or identity. The addressing component can retrieve the hash index as a function of a tag value. Accordingly, required storage area can be reduced and electronic devices can be more efficient.
Abstract:
Various aspects provide for non-intrusively monitoring a network system. A multiplexing component is configured to receive a plurality of first encoded signals and generate a plurality of second encoded signals. The plurality of second encoded signals contain a different data rate and a different number of network lanes than the plurality of first encoded signals. A monitoring component is configured to identify a block location for repeating blocks and an alignment marker in each of the plurality of first encoded signals and/or the plurality of second encoded signals. The monitoring component can also be configured to identify one or more defects, identify error information and/or determine one or more skew values associated with the plurality of first encoded signals and/or the plurality of second encoded signals.
Abstract:
A system and method are provided for simplifying load acquire and store release semantics that are used in reduced instruction set computing (RISC). Translating the semantics into micro-operations, or low-level instructions used to implement complex machine instructions, can avoid having to implement complicated new memory operations. Using one or more data memory barrier operations in conjunction with load and store operations can provide sufficient ordering as a data memory barrier ensures that prior instructions are performed and completed before subsequent instructions are executed.
Abstract:
A device (e.g., an integrated circuit memory device such as a static random access memory device) includes word line drivers. Each of the word line drivers includes a pull-up device that is coupled to a node via a shared line. A precharge device is coupled between a power supply and the node. The precharge device and a pull-up device for a selected word line driver are controlled to allow the power supply to charge the node and then to allow the charge stored in the node to flow into a word line corresponding to the selected word line driver.