公开(公告)号：US12147209B2

公开(公告)日：2024-11-19

申请号：US17704675

申请日：2022-03-25

Applicant: STMicroelectronics S.r.l. ,  STMicroelectronics Application GmbH

Inventor： Rosario Martorana ,  Mose' Alessandro Pernice ,  Roberto Colombo

IPC: G05B19/042

Abstract: A set of configuration memory locations store configuration data for a microcontroller unit. A hardware monitoring module is coupled by an interconnection bus to the configuration memory locations. The hardware monitoring module reads from an instruction memory a command including an address of a target memory location in the set of configuration memory locations. Data is read from the target memory location corresponding to the address read and a checksum value is computed as a function of the data that is read from the target memory location. The computed checksum value is then compared to a respective expected checksum value stored in a checksum storage unit. An alarm signal is triggered in response to a mismatch detected between the computed checksum value and the respective expected checksum value.

公开(公告)号：US12118376B2

公开(公告)日：2024-10-15

申请号：US17235206

申请日：2021-04-20

Applicant: STMicroelectronics International N.V. ,  STMicroelectronics Application GmbH

Inventor： Deepak Baranwal ,  Amritanshu Anand ,  Roberto Colombo ,  Boris Vittorelli

IPC: G06F9/455 ,  G06F9/48 ,  G06F9/50

CPC classification number: G06F9/45558 ,  G06F9/455 ,  G06F9/45533 ,  G06F9/48 ,  G06F9/4812 ,  G06F9/4843 ,  G06F9/485 ,  G06F9/4856 ,  G06F9/4881 ,  G06F9/50 ,  G06F9/5083 ,  G06F9/5088 ,  G06F2009/4557 ,  G06F2009/45575

Abstract: Disclosed herein is hardware for easing the process of changing the execution mode of a virtual machine and its associated resources. By adopting the hardware, it is possible to trigger a change in the execution mode in an automatic way, without software intervention, and without interfering with the execution of other virtual machines. In addition, in case an error has occurred for a virtual machine and it is detected, the hardware can be used to disable the resources associated with that virtual machine and generate notification of the completion this operation to other hardware, which will complete the reset of the virtual machine. By adopting the hardware, the execution mode change is simplified and offers configurability and flexibility for a system running multiple virtual machines.

公开(公告)号：US12068057B2

公开(公告)日：2024-08-20

申请号：US18056803

申请日：2022-11-18

Applicant: STMicroelectronics S.r.l. ,  STMicroelectronics International N.V. ,  STMicroelectronics Application GMBH

Inventor： Asif Rashid Zargar ,  Nicolas Bernard Grossier ,  Charul Jain ,  Roberto Colombo

IPC: G11C7/24 ,  G11C7/10

CPC classification number: G11C7/24 ,  G11C7/1039 ,  G11C7/1069

Abstract: In an embodiment a processing system includes a plurality of storage elements, each storage element comprising a latch or a flip-flop and being configured to receive a write request comprising a data bit and to store the received data bit to the latch or the flip-flop, a non-volatile memory configured to store data bits for the plurality of storage elements, a hardware configuration circuit configured to read the data bits from the non-volatile memory and generate write requests in order to store the data bits to the storage elements and a hardware circuit configured to change operation as a function of a logic level stored to a latch or a flip-flop of a first storage element of the plurality of storage elements, wherein the first storage element comprises a further latch or a further flip-flop and is configured to store, in response to the write request, an inverted version of the received data bit to the further latch or the further flip-flop.

公开(公告)号：US12068048B2

公开(公告)日：2024-08-20

申请号：US17815807

申请日：2022-07-28

Applicant: STMicroelectronics Application GMBH ,  STMicroelectronics International N.V.

Inventor： Vivek Mohan Sharma ,  Roberto Colombo

IPC: G11C29/24 ,  G11C29/36 ,  G11C29/42 ,  G11C29/48

CPC classification number: G11C29/42 ,  G11C29/36 ,  G11C29/48 ,  G11C2029/3602

Abstract: A processing system includes an error detection circuit configured to receive data bits and ECC bits, calculate further ECC bits as a function of the data bits, and generate a syndrome by comparing the calculated ECC bits with the received ECC bits. When the syndrome corresponds to one of N+K single bit-flip reference syndromes, the error detection circuit asserts a first error signal, and asserts one bit of a bit-flip signature corresponding to a single bit-flip error indicated by the respective single bit-flip reference syndrome.

公开(公告)号：US12019118B2

公开(公告)日：2024-06-25

申请号：US18186549

申请日：2023-03-20

Applicant: STMicroelectronics International N.V. ,  STMicroelectronics Application GmbH

Inventor： Roberto Colombo ,  Vivek Mohan Sharma ,  Samiksha Agarwal

IPC: G01R31/317

CPC classification number: G01R31/31703 ,  G01R31/31722

Abstract: In an embodiment a processing system includes a test circuit configured to set an address value, an upper address limit and a lower address limit to a given reference bit sequence, verify whether the upper-limit comparison signal has a respective third logic level and/or whether the lower-limit comparison signal has the respective third logic level, assert an error signal in response to determining that the upper-limit comparison signal does not have the respective third logic level or the lower-limit comparison signal does not have the respective third logic level, repeat a certain operation for each of the N bits.

公开(公告)号：US20230409341A1

公开(公告)日：2023-12-21

申请号：US18312237

申请日：2023-05-04

Applicant: STMicroelectronics Application GMBH ,  STMicroelectronics International N.V.

Inventor： Asif Rashid Zargar ,  Roberto Colombo

IPC: G06F9/4401 ,  G06F21/64

CPC classification number: G06F9/4405 ,  G06F21/64

Abstract: In embodiments, a reset management circuit executes reset, configuration, and software runtime phases when a processing system is switched on, where one or more microprocessors start at respective start addresses. During the configuration phase, a circuit reads a boot record from a non-volatile memory and stores it to registers. The circuit sequentially reads data records of configuration data from the non-volatile memory and generates a write request for each data record to store the data of the respective data record to a second circuit with associated address data indicated in the respective data record. The processing system processes the boot record and boot configuration data provided by the second circuits to selectively start a predetermined microprocessor at a default start address or at a start address indicated by the boot configuration data, or start one or more microprocessors at respective start addresses as indicated by the boot record.

公开(公告)号：US20230385215A1

公开(公告)日：2023-11-30

申请号：US18364786

申请日：2023-08-03

Applicant: STMicroelectronics Application GMBH

Inventor： Rolf Nandlinger ,  Roberto Colombo

IPC: G06F13/28 ,  G06F9/30 ,  G06F9/38 ,  G06F13/42 ,  G06F21/60 ,  G06F21/72

CPC classification number: G06F13/28 ,  G06F9/30105 ,  G06F21/72 ,  G06F13/4282 ,  G06F21/602 ,  G06F9/3877

Abstract: In an embodiment, a processing system comprises a microprocessor programmable via software instructions, a memory controller configured to be coupled to a memory, a communication system coupling the microprocessors to the memory controller, a cryptographic co-processor and a first communication interface. The processing system also comprises first and second configurable DMA channels. In a first configuration, the first DMA channel is configured to transfer data from the memory to the cryptographic co-processor, and the second DMA channel is configured to transfer the encrypted data via two loops from the cryptographic co-processor to the first communication interface. In a second configuration, the second DMA channel is configured to transfer received data via two loops from the first communication interface to the cryptographic co-processor, and the first DMA channel is configured to transfer the decrypted data from the cryptographic co-processor to the memory.

公开(公告)号：US20230314506A1

公开(公告)日：2023-10-05

申请号：US18186624

申请日：2023-03-20

Applicant: STMicroelectronics International N.V. ,  STMicroelectronics Application GmbH

Inventor： Roberto Colombo ,  Vivek Mohan Sharma

IPC: G01R31/317 ,  G01R31/3185

CPC classification number: G01R31/31721 ,  G01R31/31724 ,  G01R31/318566

Abstract: In an embodiment a processing system includes a reset circuit configured to receive a reset-request signal and one or more further reset-request signals, wherein the one or more further reset-request signals are provided by a processing core, one or more further circuits and/or a terminal of the processing system and to generate a combined reset-request signal by combining the reset-request signal and the one or more further reset-request signals, and a hardware test circuit including for each of the one or more further reset-request signals, a respective first combinational circuit configured to selectively assert the respective further reset-request signal, a second combinational logic circuit configured to selectively mask the combined reset-request signal, and a control circuit configured to repeat operations during a diagnostic phase.

公开(公告)号：US11474752B2

公开(公告)日：2022-10-18

申请号：US16932426

申请日：2020-07-17

Applicant: STMicroelectronics Application GmbH

Inventor： Roberto Colombo

IPC: G06F3/06 ,  G06F13/38 ,  G05B19/05 ,  G06F12/02 ,  G06F21/76

Abstract: A processing system comprises a processing unit, a hardware block configured to change operation as a function of life cycle data, and a one-time programmable memory storing original life cycle data. A hardware configuration module is configured to read the original life cycle data from the one-time programmable memory, to store the original life cycle data in a register, to receive a write request from the processing unit, and to selectively execute the write request to overwrite the original life cycle data with new life cycle data in the register.

公开(公告)号：US11210161B2

公开(公告)日：2021-12-28

申请号：US16928768

申请日：2020-07-14

Applicant: STMicroelectronics Application GMBH ,  STMicroelectronics S.r.l.

Inventor： Roberto Colombo ,  Nicolas Bernard Grossier ,  Roberta Vittimani

IPC: G06F11/00 ,  G06F11/08 ,  G06F11/30 ,  G06F11/14 ,  G06F11/07 ,  G06F11/22

Abstract: In some embodiments, a processing system includes at least one hardware block configured to change operation as a function of configuration data, a non-volatile memory including the configuration data for the at least one hardware block, and a configuration module configured to read the configuration data from the non-volatile memory and provide the configuration data read from the non-volatile memory to the at least one hardware block. The configuration module is configured to: receive mode configuration data; read the configuration data from the non-volatile memory; test whether the configuration data contain errors by verifying whether the configuration data are corrupted and/or invalid; and activate a normal operation mode or an error operation mode based on whether the configuration data contain or do not contain errors.