Abstract: A method of encoding a data word in a physical coding sublayer before serial transmission is provided, where data words comprising data bits are received, and the data words encoded using one or more 8B/10B encodings to generate 8B/10B transmission characters. ECC check bits are then generated, and the transmission characters and ECC check bits DC balanced prior to shuffling the bits together to form an encoded word to be transmitted. A receiver may decode by implementing a decode process with error correction. In some embodiments 26 data bits from two 13-bit word are encoded into a 40-bit encoded word. Bits of two or more encoded words may be interleaved for transmission, or multiple copies of encoded words sent. An integrated circuit serializer/deserializer comprises hardware to perform encoding and/or decoding. A hardware functional verification system may also implement the disclosed encoding/decoding for interconnections between emulation chips.

Abstract: In one form a method of encoding a data word for serial transmission is provided, where a data word comprising a plurality of data bits is received, an invert bit having a bit value is appended to the data word, the data bits and invert bit are scrambled, ECC check bits are generated, and the data bits, invert bit, and ECC check bits are shuffled together to form an encoded word to be transmitted from a transmitter. A receiver may decode by implementing a decode process with error correction. The encoded word may also be DC balanced by checking the disparity of the bits to be encoded against a running disparity to invert or not the bits. An integrated circuit serializer/deserializer comprises hardware to perform encoding and/or decoding. A hardware functional verification system may implement the disclosed encoding/decoding for interconnections between emulation chips.

Abstract: The disclosure describes queue management based on queue sets. A queue set comprises a group of packets or packet references that are processed as a single entity or unit. For example, when a queue set reaches the head of a queue in which it is stored, the entire queue set including its packets or packet references is passed for scheduling as a single unit. A queue set provides the benefit of a single operation associated with enqueuing and a single operation associated with dequeuing. Since only one operation on a queue is required for the typical case of several packets in a queue set rather than for every packet, the rate of queue operations may be significantly reduced. A queue set has a target data unit size, for example, a roughly equal number of packet bytes represented by each queue set, regardless of the number of packets referenced by a queue set.

Abstract: A method, apparatus, and system for staggering time zones.

Abstract: Enhanced switching functionality is achieved by a switching system having of traffic management devices connected with a generic Ethernet switch fabric and an optional flow control device. The traffic management devices use an encapsulated Ethernet frame format to provide an additional of addressing.

Abstract: A method apparatus for hardware and software co-simulation in ASIC development includes developing hardware and software concurrently and co-simulating the hardware and software therebetween via a network while the hardware and software are being developed. The method and apparatus for hardware and software co-simulation allows the software development and testing of hardware and software to start with the design of hardware so as to reduce an overall system development cycle involving ASICs.

Abstract: A method, apparatus, and system for staggering time zones.