Abstract: Disclosed approaches involve at least one processor executing a program and a debug interface circuit coupled to the processor. The debug interface circuit is configured to transmit first trace data from the first processor. A debug access port is coupled to the debug interface circuit. A fault detection circuit is coupled to the debug access port and is configured to receive the first trace data via the debug access port and compare the first trace data to second data. The fault detection circuit generates an error signal to the first processor in response to a discrepancy between the first trace data and the second data.

Abstract: Methods and circuits are disclosed for measuring temperature and/or voltage using ring oscillators. In an example implementation, temperature and/or voltage are determined using an iterative measurements of a ring oscillator. The ring oscillator oscillates with a different voltage-temperature response in each of the first, second and third modes. In each iteration, a first set of indications of frequency are determined for a ring oscillator in a first mode, a second mode, and a third mode. A coarse temperature estimate and a coarse voltage estimate of the ring oscillator are determined based on the indications of frequency measured in a first iteration. A more accurate temperature estimate and a more accurate voltage estimate of the ring oscillator are determined as a function of a second set of indications of frequency measured in a second iteration, the coarse temperature estimate, and the coarse voltage estimate.

Abstract: In an example, a programmable integrated circuit (IC) includes programmable logic, a processing system, and a network controller. The network controller includes a media access control unit (MAC), a first interface to a physical transceiver, a second interface to the processing system, and a third interface between the MAC and the programmable logic.

Abstract: A processing subsystem for providing diagnostic of a processing system is provided. The processing subsystem includes a real-time processing unit that receives a first input that includes data from one or more sensors and processes the first input to generate first output that controls an actuator. The processing subsystem also includes a power and safety management unit that receives a second input and processes the second input to generate second output for testing of the first output. A method and a system for providing diagnostic for a processing system are provided as well.

Abstract: In an example, a programmable integrated circuit (IC) includes programmable logic, a processing system, and a network controller. The network controller includes a media access control unit (MAC), a first interface to a physical transceiver, a second interface to the processing system, and a third interface between the MAC and the programmable logic.

Abstract: A system on a chip (SoC) for providing safety hardware fault tolerance and/or safety software fault tolerance includes a first safety sub-system having a first safety channel; a second safety sub-system having a second safety channel; and a third sub-system. The first safety sub-system is independent of the second safety sub-system to allow the second safety sub-system to communicate through the second safety channel when the first safety sub-system or the third subsystem fails, and further to allow the first safety sub-system to communicate through the first safety channel when the second safety sub-system or the third subsystem fails.