G06F13/4018

Data structures for refined link training
11301411 · 2022-04-12 · ·

A port of a computing device includes protocol circuitry to implement a particular interconnect protocol, where the protocol circuitry is to generate a set of ordered sets defined according to the particular interconnect protocol. The set of ordered sets is generated for a link to couple a first device to a second device and the set of ordered sets comprises link information for the link. Translation layer circuitry is provided to: generate, from the set of ordered sets, at least one data structure to comprise at least a portion of the link information, and cause the data structure to be sent from the first device to the second device on the link in lieu of the set of ordered sets.

Multichip package with protocol-configurable data paths
11294842 · 2022-04-05 · ·

Integrated circuit packages with multiple integrated circuit dies are provided. A multichip package may include a substrate, a main die that is mounted on the substrate, and multiple transceiver daughter dies that are mounted on the substrate and that are coupled to the main die via corresponding Embedded Multi-die Interconnect Bridge (EMIB) interconnects formed in the substrate. Each of the main die and the daughter dies may include configurable adapter circuitry for interfacing with the EMIB interconnects. The adapter circuitry may include FIFO buffer circuits operable in a 1× mode or 2× mode and configurable in a phase-compensation mode, a clock-compensation mode, an elastic mode, and a register bypass mode to help support a variety of communications protocols with different data width and clocking requirements. The adapter circuitry may also include boundary alignment circuitry for reconstructing (de)compressed data streams.

CIRCUIT IMPLEMENTATION IN RESOURCE CONSTRAINED SYSTEMS
20220114129 · 2022-04-14 · ·

Methods and apparatus for implementing a bus in a resource constrained system. In embodiments, a first FPGA is to a parallel bus and a second FPGA is connected to the first FPGA via a serial interface but not the parallel bus. The first FPGA processes a transaction request, which has a parallel bus protocol format, to the second FPGA by an initiator and converts the transaction request to the second FPGA into a transaction on the serial interface between the first and second FPGAs. The first FPGA responds to the initiator via the parallel bus indicating that the transaction request in the format for the parallel bus to the second FPGA is complete.

RE-PURPOSING BYTE ENABLES AS CLOCK ENABLES FOR POWER SAVINGS

Systems, apparatuses, and methods for efficient data transfer in a computing system are disclosed. A source generates packets to send across a communication fabric (or fabric) to a destination. The source generates partition enable signals for the partitions of payload data. The source negates an enable signal for a particular partition when the source determines the packet type indicates the particular partition should have an associated asserted enable signal in the packet, but the source also determines the particular partition includes a particular data pattern. Routing components of the fabric disable clock signals to storage elements assigned to store the particular partition. The destination inserts the particular data pattern for the particular partition in the payload data.

Circuit implementation in resource constrained systems
11314680 · 2022-04-26 · ·

Methods and apparatus for implementing a bus in a resource constrained system. In embodiments, a first FPGA is to a parallel bus and a second FPGA is connected to the first FPGA via a serial interface but not the parallel bus. The first FPGA processes a transaction request, which has a parallel bus protocol format, to the second FPGA by an initiator and converts the transaction request to the second FPGA into a transaction on the serial interface between the first and second FPGAs. The first FPGA responds to the initiator via the parallel bus indicating that the transaction request in the format for the parallel bus to the second FPGA is complete.

Asymmetric read / write architecture for enhanced throughput and reduced latency

The present disclosure relates to asymmetric read/write architectures for enhanced throughput and reduced latency. One example embodiment includes an integrated circuit. The integrated circuit includes a network interface. The integrated circuit also includes a communication bus interface. The integrated circuit is configured to establish a communication link with a processor of the host computing device over the communication bus interface, which includes mapping to memory addresses associated with the processor of the host computing device. The integrated circuit is also configured to receive payload data for transmission over the network interface in response to the processor of the host computing device writing payload data to the mapped memory addresses using one or more programmed input-outputs (PIOs). Further, the integrated circuit is configured to write payload data received over the network interface to the memory of the host computing device using direct memory access (DMA).

INFRASTRUCTURE INTEGRITY CHECKING

A device includes a first component having a data input and a data output. The deice further includes an error correction code (ECC) generation circuit having an input coupled to the data input of the first component. The ECC generation circuit has an output. A second component has a data input coupled to the output of the ECC generation circuit. The second component has a data output. An ECC error detection circuit has a first data input coupled to the data output of the first component, and a second data input coupled to the data output of the second component.

SIGNAL CHANNEL SWITCHING METHOD, DISPLAY TERMINAL AND COMPUTER-READABLE STORAGE MEDIUM
20210248101 · 2021-08-12 ·

The present application discloses a signal channel switching method, a display terminal and a computer-readable storage medium. The signal channel switching method includes the following operations: establishing a data connection with a first external device connected with a first hot plug pin; obtaining a first voltage detected by a second hot plug pin, and judging whether the first voltage conforms to a preset rule; if the first voltage conforms to the preset rule, obtaining information of a second external device connected with the second hot plug pin; cutting off the data connection with the first external device and establishing a data connection with the second external device according to the information of the second external device.

Protocol Data Unit End Handling with Fractional Data Alignment and Arbitration Fairness
20210248098 · 2021-08-12 ·

In at least one embodiment, a method for handling data units in a multi-user system includes granting a shared resource to a user of a plurality of users for a transaction associated with an entry of a transaction data structure. The method includes determining whether the transaction stored last partial data of a data unit associated with the user in an alignment register associated with the user. The method includes asserting a request for arbitration of a plurality of transactions associated with the plurality of users. The request is asserted for an additional transaction associated with the entry in response to determining that the transaction stored the last partial data in the alignment register. The method may include flushing the last partial data from the alignment register to a target memory in response to detecting an additional grant of the shared resource to the user for the additional transaction.

LOGICAL PHYSICAL LAYER INTERFACE SPECIFICATION SUPPORT FOR PCIE 6.0, CXL 3.0, AND UPI 3.0 PROTOCOLS
20210232520 · 2021-07-29 ·

In one embodiment, an apparatus includes: a first link layer circuit to perform link layer functionality for a first communication protocol; and a logical physical (logPHY) circuit coupled to the first link layer circuit via a logical PHY interface (LPIF) link, the logPHY circuit to communicate with the first link layer circuit in a flit mode in which the first information is communicated in a fixed width size and to communicate with another link layer circuit in a non-flit mode. Other embodiments are described and claimed.