Stmicroelectronics (rousset) Sas

Stmicroelectronics S.a.

Stmicroelectronics (grenoble 2) Sas

Sandrine Lendre

Dragos Davidescu

Olivier Ferrand

Franck Roche

François Cloute

Jerome Lacan

Olivier Plourde

Jean-François Link

A memory contains a linked list of records representative of a plurality of data transfers via a direct memory access control circuit. Each record is representative of parameters of an associated data transfer of the plurality of data transfers. The parameters of each record include a transfer start condition of the associated data transfer and a transfer end event of the associated data transfer.

Direct memory access

An embodiment system includes a first processor configured to process a suite of instructions and a second processor configured to process a subset of the suite of instructions. The system further includes a power management circuit configured to select the first processor or the second processor as a selected processor, the power management circuit being further configured to activate the selected processor or place the selected processor on standby. The system also includes a first peripheral device configured to generate a first interrupt signal, a switch configured to direct the first interrupt signal to the selected processor, and a first memory configured to store a first interrupt routine associated with the first interrupt signal, the selected processor being configured to execute the first interrupt routine in response to the first interrupt signal.

System and method for processing interrupts by processors of a microcontroller in a low-power mode

Embodiments described in the present disclosure relate to a method for initializing registers of peripherals of a microcontroller, including acts of: accessing initialization data in a non-volatile memory connected by a main bus to a processing unit of the microcontroller and to the peripherals, activating a peripheral including registers to be initialized, and transferring the data read into the registers of the activated peripheral, the initialization data being accessed in the memory by an initialization circuit distinct from the processing unit, the initialization data accessed being sent to the peripherals by an initialization bus distinct from the main bus.

Method for initializing registers of peripherals in a microcontroller

A multifunctional timer/event counter device includes at least one counter controlled by a clock signal, and a control register including at least one binary number that will at least define a behavior of the counter. The device also includes a function module including at least one synchronization signal reception input and a reception input for at least one function control signal, the function module being capable of modifying the binary number as a function of at least the synchronization signal and the function control signal.

Multifunctional timer/event counter device and method of using such a device

The present invention relates to an integrated circuit comprising a first clock circuit delivering a first clock signal, a second clock circuit delivering a second clock signal, a first counting circuit for delivering a time base signal using a clock signal and a counting value, and means for applying the first clock signal and a first counting value to the first counting circuit, so as to produce a first time base signal. According to the present invention, the integrated circuit comprises means for producing a second time base signal using the second clock signal and a second counting value, and means for calibrating the second counting value such that it is equal or proportional to the number of periods of the second clock signal occurring during a determined time interval equal to a period or to a whole number of periods of the first time base signal. Application particularly to the management of a timer in a microprocessor.

Growing community of inventors

Aix en Provence, France

Sandrine Lendre