Nxp Usa, Inc.

Freescale Semiconductor,inc.

Jeffrey Thomas Loeliger

Alistair Robertson

Derek Beattie

Daniel McKenna

Andrey Kovalev

Mark Stachew

Gordon James Campbell

Ewan Harwood

Filippo Cioni

Gordon Campbell

Daniel Mckenna

An automotive control system includes a safety processor and a system-on-a-chip. The SoC includes a primary processor, a safety monitor, first and second GPIO banks, and a debug interface. The safety monitor is configured to detect a fault condition of the primary processor and to provide an indication of the fault condition to the safety processor. The first GPIO bank is coupled to the primary processor to provide input/output operations to a non-critical function of an automobile, while the second GPIO bank is coupled for a critical function of the automobile. The debug interface is coupled to the second GPIO bank to form a scan chain with input and output registers of the second GPIO bank, and is coupled to the safety processor to receive control information for the scan chain to provide input/output operations to the critical function of the automobile when the safety monitor provides the indication.

System and method to provide safety partition for automotive system-on-a-chip

A data processor comprises a memory-management-unit for receiving external-operation-data from a CPU. The memory-management-unit sets a deterministic-quantity value for the external-operation-data based on the external-operation-data. The deterministic-quantity value may be either an active-value or an inactive-value. The data processor has a non-deterministic-processor-block for receiving a memory-signal from the memory-management-unit, and has a control-block configured to (i) send the memory-signal to an NDP-output-terminal if the deterministic-quantity value is the active-value, thereby bypassing a performance-enhancement-block, or (ii) send at least a portion of the memory-signal that is representative of the request for response-data to the performance-enhancement-block if the deterministic-quantity value is the inactive-value.

Data processor having a memory-management-unit which sets a deterministic-quantity value

The present application relates to a direct memory access, DMA, controller for a data processing system and a method of operating the DMA controller is provided. The DMA controller comprises a transfer table, a data path processing block and a comparator logic block. The table comprises at least one transfer descriptor comprising information about a source and destination of a DMA transfer. The data path processing block is provided to be coupled to a system interconnect of the data processing system and configured to receive data from the source of the DMA transfer and to transfer the received data to the destination of the DMA transfer. The comparator logic block is configured to validate the value of the received data against a predefined value range for range checking and to initiate one or more failed range check actions in response to a failed range checking.

DMA controller for a data processing system, a data processing system and a method of operating a DMA controller

A processor system includes at least two processor cores and an interrupt controller including interrupt priority registers configured for registering interrupt priorities of the respective processor cores. The processor system further includes at least two task timers associated with respective processor cores. Each task timer includes a counter configured for producing a counter value, a timeout value register configured for storing a timeout value and a tidemark value register configured for storing a tidemark value smaller than the timeout value. Each task timer is configured for producing a timeout signal when the counter value equals the timeout value and for producing a tidemark signal when the counter value equals the tidemark value. The interrupt controller is configured for increasing the interrupt priority of a processor core in response to a tidemark signal and for decreasing the interrupt priority of a processor core in response to a timeout signal.

Multiple processor core interrupt priority levels

A method and apparatus are configured to receive at a control input of an analog to digital converter (ADC) circuit, from a control output of a control circuit, a first instance of control information that indicates a conversion characteristic of the ADC, wherein the conversion characteristic is one of a first conversion rate and a first conversion resolution, to provide at a status output of the ADC status information regarding the conversion of a first analog signal by the ADC circuit, to receive at the control input of the ADC a second instance of the control information that adjusts the conversion characteristic to allocate a first portion of an ADC circuit bandwidth of the ADC circuit to continuing receiving the first analog signal and to allocate a second portion of the ADC circuit bandwidth to receiving a second analog signal.

Growing community of inventors

Glasgow, United Kingdom

Jeffrey Thomas Loeliger