Stmicroelectronics (Alps) Sas

Stmicroelectronics (Rousset) Sas

Stmicroelectronics France

Stmicroelectronics (Grenoble 2) Sas

Patrick Arnould

Alexandre Tramoni

Mathieu Pierre Lisart

Fabrice Romain

Florent Sibille

The present disclosure relates to an electronic device comprising: at least one universal integrated circuit card or at least one secure element and at least one power supply circuit for said card or secure element, said power supply circuit being connected to at least a first power supply voltage source of the electronic device and comprising a voltage detector adapted to determine whether said first voltage source provides a first power supply voltage different from a reference voltage; and at least one near field communication module adapted to enter an active mode whenever said voltage detector determines that said first supply voltage is different from the reference voltage.

Electronic device powering

The present disclosure relates to a method for powering an electronic device. The electronic device includes at least one universal integrated circuit card or at least one secure element; at least one power supply circuit for said card or secure element; and at least one near field communication module. When the near field communication module changes from a standby or inactive state to an active state, the following successive operations are performed: —the components and circuits of said electronic device are started; —programs of the electronic device and said secure card or element are started at the same time.

An electronic device includes a near-field communication module and a powering circuit for delivering a power supply voltage to the near-field communication module. When the near-field communication module is in a low power mode, the powering circuit is configured for an operational mode where it is periodically started to provide the power supply voltage.

NFC module powering

A datum is written to a memory, by splitting a binary word, representative of the datum and an error correcting or detecting code, into a first part and a second part. The first part is written at a logical address in a first memory circuit. The second part is written at the logical address in a second memory circuit. The error correcting or detecting code is dependent on both the datum and the logical address.

Error detection

A method can be used for addressing a slave integrated circuit connected to a bus. The slave integrated circuit has a default address on the bus. The method includes receiving, at the slave integrated circuit, an addressing message conveyed on the bus. The addressing message contains a replacement address. The method also includes replacing the default address within the slave integrated circuit with the replacement address upon receiving the addressing message, restarting the slave integrated circuit, and upon the restarting, assigning the replacement address as a new default address.

Growing community of inventors

Voreppe, France

Patrick Arnould