Abstract: A method can be used for transmission of at least one packet of at least one bit over a serial link capable of taking two different states respectively associated with the two possible logical values of the at least one transmitted bit. Starting from a transmission start time of the at least one bit and up to the expiration of a first portion of a bit time associated with the at least one bit, the link is placed in one of its states depending on the logical value of the at least one bit. Upon the expiration of the first portion of this bit time, a first additional transition is generated over the link so as to place the link in its other state up to the expiration of the bit time.

Abstract: A method can be used for transmission of at least one packet of at least one bit over a serial link capable of taking two different states respectively associated with the two possible logical values of the at least one transmitted bit. Starting from a transmission start time of the at least one bit and up to the expiration of a first portion of a bit time associated with the at least one bit, the link is placed in one of its states depending on the logical value of the at least one bit. Upon the expiration of the first portion of this bit time, a first additional transition is generated over the link so as to place the link in its other state up to the expiration of the bit time.

Abstract: A method can be used for transmission of at least one packet of at least one bit over a serial link capable of taking two different states respectively associated with the two possible logical values of the at least one transmitted bit. Starting from a transmission start time of the at least one bit and up to the expiration of a first portion of a bit time associated with the at least one bit, the link is placed in one of its states depending on the logical value of the at least one bit. Upon the expiration of the first portion of this bit time, a first additional transition is generated over the link so as to place the link in its other state up to the expiration of the bit time.

Abstract: A method can be used for transmission of at least one packet of at least one bit over a serial link capable of taking two different states respectively associated with the two possible logical values of the at least one transmitted bit. Starting from a transmission start time of the at least one bit and up to the expiration of a first portion of a bit time associated with the at least one bit, the link is placed in one of its states depending on the logical value of the at least one bit. Upon the expiration of the first portion of this bit time, a first additional transition is generated over the link so as to place the link in its other state up to the expiration of the bit time.

Abstract: A method can be used for transmission of at least one packet of at least one bit over a serial link capable of taking two different states respectively associated with the two possible logical values of the at least one transmitted bit. Starting from a transmission start time of the at least one bit and up to the expiration of a first portion of a bit time associated with the at least one bit, the link is placed in one of its states depending on the logical value of the at least one bit. Upon the expiration of the first portion of this bit time, a first additional transition is generated over the link so as to place the link in its other state up to the expiration of the bit time.

Abstract: A virtual memory is partitioned into virtual partitions, each partition being subdivided into virtual sub-partitions and each sub-partition corresponding to a combination of multiple sectors of identical or different sizes of a physical memory. When an allocation request is made for a virtual memory space having a given memory size, a free partition is selected, a virtual sub-partition is selected corresponding to a combination of sectors having a minimum total size covering the given memory size of the virtual memory to be allocated, and free sectors of the physical memory are selected corresponding to the selected combination. A determination is made of a correspondence table between the selected virtual partition and the initial physical addresses of the selected free sectors, and a virtual address is generated.

Abstract: A method for controlling a low-power state of a pair of serial interfaces using a pair of flow-control signal lines may include enabling a first of the flow-control lines by a first one of the interfaces for signaling a transmission request to the second interface. The method may also include, in response to the transmission request, waking up to a live state from a low-power state and enabling a second flow-control line for signaling a transmission authorization to the first interface. In response to the transmission authorization, the method may include initiating a transmission of a message to the second interface, and upon reaching an offset before the end of the message transmission, disabling the first flow-control line by the first interface. The method may also include, at the end of the message transmission, disabling the second flow-control line and going back into the low-power state.

Abstract: A virtual memory is partitioned into virtual partitions, each partition being subdivided into virtual sub-partitions and each sub-partition corresponding to a combination of multiple sectors of identical or different sizes of a physical memory. When an allocation request is made for a virtual memory space having a given memory size, a free partition is selected, a virtual sub-partition is selected corresponding to a combination of sectors having a minimum total size covering the given memory size of the virtual memory to be allocated, and free sectors of the physical memory are selected corresponding to the selected combination. A determination is made of a correspondence table between the selected virtual partition and the initial physical addresses of the selected free sectors, and a virtual address is generated.

Abstract: A method of self-test for a near-field communication (NFC) radio frequency (RF) front-end unit comprising one antenna driver and at least one unit from a group comprising one reader and one card emulator, the RF front-end unit being connected to a digital front-end unit, wherein the antenna driver and the unit are interconnected through a first connection line via their respective first input-output interface and are also interconnected through a second connection line via their respective second input-output interface, the digital front-end unit being connected to the second connection line, the method comprising: activating the antenna driver and the unit based on control signals; —generating a first signal onto the first connection line by modulating a respective first bitstream; —retrieving a second bitstream from the second connection line, by demodulating the first signal; and, —determining an outcome of the self-test by monitoring the demodulated signal.

Abstract: A method can be used for transmission of at least one packet of at least one bit over a serial link capable of taking two different states respectively associated with the two possible logical values of the at least one transmitted bit. Starting from a transmission start time of the at least one bit and up to the expiration of a first portion of a bit time associated with the at least one bit, the link is placed in one of its states depending on the logical value of the at least one bit. Upon the expiration of the first portion of this bit time, a first additional transition is generated over the link so as to place the link in its other state up to the expiration of the bit time.

Abstract: A process controls a processing unit in the presence of a task being executed by the processing unit. The processing unit includes at least one external input electrically connected to a corresponding output of the processing unit, and is associated with a level of priority of execution. The process includes, in the presence of an auxiliary-task request generated internally within the processing unit, generation by the processing unit of an auxiliary electrical signal corresponding to the request for execution of the auxiliary task. The auxiliary electrical signal is relayed to the at least one external input. A comparison is made between the priority levels respectively associated with the at least one external input and with the task being executed.

Abstract: A method of self-test for a near-field communication (NFC) radio frequency (RF) front-end unit comprising one antenna driver and at least one unit from a group comprising one reader and one card emulator, the RF front-end unit being connected to a digital front-end unit, wherein the antenna driver and the unit are interconnected through a first connection line via their respective first input-output interface and are also interconnected through a second connection line via their respective second input-output interface, the digital front-end unit being connected to the second connection line, the method comprising: activating the antenna driver and the unit based on control signals; generating a first signal onto the first connection line by modulating a respective first bitstream; retrieving a second bitstream from the second connection line, by demodulating the first signal; and, determining an outcome of the self-test by monitoring the demodulated signal.

Abstract: A method for controlling a low-power state of a pair of serial interfaces using a pair of flow-control signal lines may include enabling a first of the flow-control lines by a first one of the interfaces for signaling a transmission request to the second interface. The method may also include, in response to the transmission request, waking up to a live state from a low-power state and enabling a second flow-control line for signaling a transmission authorization to the first interface. In response to the transmission authorization, the method may include initiating a transmission of a message to the second interface, and upon reaching an offset before the end of the message transmission, disabling the first flow-control line by the first interface. The method may also include, at the end of the message transmission, disabling the second flow-control line and going back into the low-power state.