Electronic device comprising elements managed by different standardised protocols and method for managing communication between those elements

摘要

The embodiments of this invention relate to an electronic device (9) intended to be installed in a portable device (1), which electronic device comprises: • a microcontroller (13) configured to communicate with a first interface (5) of the portable device in accordance with a first protocol, the said first interface (5) supplying power voltage to the microcontroller, the said power voltage being standardised by the said first protocol, • a secure electronic chip component (15) configured to communicate with a second interface (7) of the portable device in accordance with a second protocol, the said second interface (7) supplying power voltage to the secure component, the said power voltage being standardised by the said second protocol, • means for communication (17) between the secure component (15) and the microcontroller (13), in which the means for communication comprise a module for voltage adaptation (19) depending on the power voltages supplied by the first and second interfaces.

主权项

1. An electronic device configured to be installed in a portable device, the electronic device comprises:
a microcontroller configured to communicate with a first interface of the portable device in accordance with a first electronic card communication protocol, the said first interface supplying power voltage to the microcontroller, the said power voltage being standardized by the said first electronic card communication protocol, a secure electronic chip component configured to communicate with a second interface of the portable device in accordance with a second electronic card communication protocol, the said second interface supplying power voltage to the secure electronic chip component, the said power voltage being standardized by the said second electronic card communication protocol, means for communication between the secure electronic chip component and the microcontroller the means for communication operably connecting the secure electronic chip component to the microcontroller, wherein the means for communication comprise a module for voltage adaptation depending on the power voltages supplied by the first and second interfaces.