公开(公告)号：US20250028653A1

公开(公告)日：2025-01-23

申请号：US18776561

申请日：2024-07-18

Applicant: STMicroelectronics International N.V.

Inventor： Jawad BENHAMMADI

IPC: G06F12/14 ,  G06F21/57

Abstract: A method of securization of programs in a memory embedded within a microcontroller includes writing a boot program into a first area of the memory and writing at least one additional program into at least one second area of the memory. One or more values of a first register are modified to provide a write protection of the first and second areas. A prohibition against modification of the one or more values of the first register is then implemented when those values are associated with a write protection state of the first area.

公开(公告)号：US20250004785A1

公开(公告)日：2025-01-02

申请号：US18742726

申请日：2024-06-13

Applicant: STMicroelectronics International N.V.

Inventor： Jawad BENHAMMADI

IPC: G06F9/4401

Abstract: The present description concerns a method of selection of boot programs, each contained in two separate storage memories of a microprocessor wherein an option register read first during a resetting of the microprocessor conditions the selection of one of the boot programs.

公开(公告)号：US20240264905A1

公开(公告)日：2024-08-08

申请号：US18430259

申请日：2024-02-01

Applicant: STMicroelectronics International N.V.

Inventor： Jawad BENHAMMADI

IPC: G06F11/10

CPC classification number: G06F11/1068 ,  G06F11/1044

Abstract: EEPROM emulation is provided in a phase-change memory of a circuit integrating a microprocessor. A granularity for writing into lines of the phase-change memory is defined according to a size of data packets to be written. A first error correction code calculated by a program executed by said microprocessor is associated with each data packet. Several data packets and their associated first error correction codes are then stored in a same line of the phase-change memory data packet.

公开(公告)号：US20250165336A1

公开(公告)日：2025-05-22

申请号：US18939193

申请日：2024-11-06

Applicant: STMicroelectronics International N.V.

Inventor： Jawad BENHAMMADI

IPC: G06F11/07

Abstract: The present description concerns a method of configuration of a microcontroller provided with a non-volatile memory, wherein, during an implementation of an operation of loading of the microcontroller configuration based on data from the non-volatile memory, if a fault is detected, then a new configuration loading operation is implemented at least once without for the microcontroller to be powered off.

公开(公告)号：US20250165163A1

公开(公告)日：2025-05-22

申请号：US18939210

申请日：2024-11-06

Applicant: STMicroelectronics International N.V.

Inventor： Jawad BENHAMMADI

IPC: G06F3/06

Abstract: The present description concerns an operating method of a non-volatile memory, comprising the validation of a transaction, requesting a modification of a value of configuration of a sector of the memory, after comparison of the attributes of the transaction with access attributes of said sector of said memory.

公开(公告)号：US20250165158A1

公开(公告)日：2025-05-22

申请号：US18940372

申请日：2024-11-07

Applicant: STMicroelectronics International N.V.

Inventor： Jawad BENHAMMADI

IPC: G06F3/06

Abstract: The present description concerns a method of configuration of a phase-change non-volatile memory, comprising the partitioning of said memory into a first set of one or a plurality of regions having a first maximum number of write cycles and a second set of one or a plurality of other regions having a second maximum number of write cycles greater than the first maximum number of write cycles, the first and second maximum number of write cycles being linked to different physical write parameters.

公开(公告)号：US20240267217A1

公开(公告)日：2024-08-08

申请号：US18430894

申请日：2024-02-02

Applicant: STMicroelectronics International N.V.

Inventor： Jawad BENHAMMADI

IPC: H04L9/08

CPC classification number: H04L9/0894

Abstract: A method is presented for verifying a writing of a key into a non-volatile memory. A first cyclic redundancy code of the key is stored into a register of an interface of the memory. A second cyclic redundancy code is computed on a message formed by the copied key having the first cyclic redundancy code linked thereto. The writing of the key into the non-volatile memory is considered as valid when the second cyclic redundancy code is equivalent to the zero value.

公开(公告)号：US20240264844A1

公开(公告)日：2024-08-08

申请号：US18430825

申请日：2024-02-02

Applicant: STMicroelectronics International N.V.

Inventor： Jawad BENHAMMADI

IPC: G06F9/4401

CPC classification number: G06F9/4403

Abstract: In a method of emulation of N boot programs in a memory, N being an integer greater than 2, the size of a no-access region of the memory containing the boot programs is increased in response to execution of each boot program.