Apparatus and associated methods relate to selectively bypassing a daisy-chained network device based on a timing of a series of reset signals. The daisy-chained network device is bypassed if an elapsed time from a last of the reset signals of the series is longer than a predetermined time period. While no interval between adjacent reset signals of the series exceeds the predetermined time period, the daisy-chained network device is not bypassed. In some embodiments, the daisy-chained network device generates the series of reset signals. If the daisy-chained network device fails to generate a next reset signal within the predetermined time period as measured from a previous reset signal, the daisy-chained network device is bypassed. If the daisy-chained network device loses power, it will be bypassed as the reset signals will not be generated, but if the daisy-chained network device regains power, it can be reinserted into the network daisy-chain.

Techniques are disclosed relating to relating to a public key infrastructure (PKI). In one embodiment, an integrated circuit is disclosed that includes at least one processor and a secure circuit isolated from access by the processor except through a mailbox mechanism. In some embodiments, the secure circuit is configured to generate a public key and a private key for an application, and receive, from the application via an API, a request to perform a cryptographic operation using the private key. The secure circuit is further configured to perform the cryptographic operation in response to the request.

A system includes a high-bandwidth inter-chip network (ICN) that allows communication between neural network processing units (NPUs) in the system. For example, the ICN allows an NPU to communicate with other NPUs on the same compute node (server) and also with NPUs on other compute nodes (servers). Communication can be at the direct memory access (DMA) command level and at the finer-grained load/store instruction level. The ICN system and the programming model allows NPUs in the system to communicate without using a traditional network (e.g., Ethernet) that uses a relatively narrow and slow Peripheral Component Interconnect Express (PCIe) bus.

Embodiments herein describe using software or firmware to manage the device capability list of a PCIe device. That is, rather than relying on pure hardware to advertise the capabilities of a PCIe device, the embodiments herein permit software or firmware executing on a processor in the PCIe device to manage read and write requests associated with discovering the capabilities of the device and configuring the device.

Techniques for transmitting data include identifying data to be transmitted, adding the data to a queue, and in response to a data session window being open: extracting the data from the queue; transmitting the extracted data to a transceiver via a transmitter; monitoring an amount of data in the queue and determining that the transmitter has transmitted the extracted data to the transceiver; and in response, instructing the transceiver to end the data session window early and transition to a lower power state.

A packaged circuit including a digital controller, a port physical layer and a digital coding circuit is provided. The digital controller outputs digital data in parallel via a parallel data channel, and the digital data includes a plurality of data bits. The port physical layer includes a clock generator, and outputs a data signal according to the data bits. The clock generator outputs a clock signal to the digital controller. The digital coding circuit is coupled to the digital controller and the port physical layer, and receives the digital data and the clock signal. The digital coding circuit codes the clock signal to generate a plurality of clock bits, and outputs the clock bits to the port physical layer. The port physical layer converts the clock bits into an output clock and outputs the output clock.

Adjusting wireless docking resource usage, including identifying, at a client information handling system (IHS), a configuration policy, the client IHS wirelessly connected to a docking station, the docking station providing wireless connections to peripheral computing components, respectively; processing, at the client IHS, the configuration policy, including identifying configuration rules of the configuration policy for performing computer-implemented actions of throttling resource utilization between the client IHS and the docking station; identifying, at the client IHS, when the client IHS is wirelessly connected to the docking station, a first presence state of a user with respect to the client IHS; and determining, at the client IHS, that the first presence state indicates that the user of the client IHS is not actively engaged with the client IHS, and in response, applying the configuration rules to perform computer-implemented actions of throttling resource utilization between the client IHS and the docking station.

In one example, a data processing unit (DPU) includes a host unit interface for communicatively coupling to second device via a serial input/output (I/O) connection, and a control unit implemented in circuitry and configured to initially configure the host unit interface of a data processing unit to operate in endpoint mode, determine that the host unit interface of the data processing unit is to switch from operating in the endpoint mode to root complex mode, in response to determining that the host unit interface is to switch from operating in the endpoint mode to the root complex mode: configure the host unit interface to operate in the root complex mode, and send data to an I/O expander unit to cause the I/O expander unit to issue a reset signal to the second device, the second device being configured to operate in the endpoint mode.

The application describes a master/slave communication system, in particular a PSI5 communication system, including at least one slave participant, at least one master participant, and a communication connection between the slave participant and the master participant. In this case, the slave participant is supplied by the master participant with a supply voltage between a lower voltage threshold and an upper voltage threshold via the communication connection in a normal operating mode. The master/slave communication system has, in addition to the normal operating mode, a standby operating mode at its disposal in which the master participant supplies the slave participant with a standby voltage below the lower voltage threshold via the communication connection.

A method of controlling a mode of a device is provided. The method includes determining a Vbus voltage on a Vbus pin in a USB connector on the device, comparing the Vbus voltage with a threshold, and configuring the device based on the comparison of the Vbus voltage and the threshold.