公开(公告)号：US20240220278A1

公开(公告)日：2024-07-04

申请号：US18176323

申请日：2023-02-28

Applicant: STMICROELECTRONICS S.r.l. ,  STMicroelectronics International N.V.

Inventor： Paolo Sergio ZAMBOTTI ,  Thomas BOESCH ,  Giuseppe DESOLI ,  Wolfgang Johann BETZ ,  David SIORPAES

IPC: G06F9/445

CPC classification number: G06F9/44505

Abstract: A system includes a host processor, a memory, a hardware accelerator and a configuration controller. The host processor, in operation, controls execution of a multi-stage processing task. The memory, in operation, stores data and configuration information. The hardware accelerator, in operation preforms operations associated with stages of the multi-stage processing task. The configuration controller is coupled to the host processor, the hardware accelerator, and the memory. The configuration controller executes a linked list of configuration operations, for example, under control of a finite state machine. The linked list consists of configuration operations selected from a defined set of configuration operations. Executing the linked list of configuration operations configures the plurality of configuration registers of the hardware accelerator to control operations of the hardware accelerator associated with a stage of the multi-stage processing task. The configuration controller may retrieve the linked list from the memory via a high-speed data bus.

公开(公告)号：US20240220777A1

公开(公告)日：2024-07-04

申请号：US18176315

申请日：2023-02-28

Applicant: STMICROELECTRONICS S.r.l. ,  STMicroelectronics International N.V.

Inventor： Francesca GIRARDI ,  Giuseppe DESOLI ,  Ruggero SUSELLA ,  Thomas BOESCH ,  Paolo Sergio ZAMBOTTI

IPC: G06N3/0464

CPC classification number: G06N3/0464

Abstract: A hardware accelerator includes functional circuits and streaming engines. An interface is coupled to the plurality of streaming engines. The interface, in operation, performs stream cipher operations on data words associated with data streaming requests. The performing of a stream cipher operation on a data word includes generating a mask based on an encryption ID associated with a streaming engine of the plurality of streaming engines and an address associated with the data word, and XORing the generated mask with the data word. The hardware accelerator may include configuration registers to store configuration information indicating a respective security state associated with functional circuits and streaming engine of the hardware accelerator, which may be used to control performance of operations by the hardware accelerator.

公开(公告)号：US20240176586A1

公开(公告)日：2024-05-30

申请号：US17994817

申请日：2022-11-28

Applicant: STMicroelectronics S.r.l.

Inventor： Marcella CARISSIMI ,  Paolo Sergio ZAMBOTTI ,  Riccardo ZURLA

IPC: G06F7/544 ,  G11C13/00

CPC classification number: G06F7/5443 ,  G11C13/0004 ,  G11C13/0026 ,  G11C13/0028

Abstract: An IMC circuit includes a memory cells arranged in matrix. Computational weights for an IMC operation are stored in groups of cells. Each row of groups of cells includes a positive and negative word linen. Each column of groups of cells includes a bit line. The IMC operation includes a first elaboration where a word line signal is applied to the positive/negative word line of the group of cells depending on the positive/negative sign, respectively, of the coefficient data, with a positive MAC output on the bit line. In a second elaboration, a word line signal is applied to the negative/positive word line of the group of cells depending on the positive/negative sign, respectively, of the coefficient data, with a negative MAC output on the bit line. The IMC operation result is obtained from a difference between the positive and negative MAC operations.

公开(公告)号：US20180189229A1

公开(公告)日：2018-07-05

申请号：US15423272

申请日：2017-02-02

Applicant: STMICROELECTRONICS S.R.L. ,  STMICROELECTRONICS INTERNATIONAL N.V.

Inventor： Giuseppe DESOLI ,  Thomas BOESCH ,  Nitin CHAWLA ,  Surinder Pal SINGH ,  Elio GUIDETTI ,  Fabio Giuseppe DE AMBROGGI ,  Tommaso MAJO ,  Paolo Sergio ZAMBOTTI

IPC: G06F15/78 ,  G06N3/04 ,  G06F13/40

Abstract: Embodiments are directed towards a system on chip (SoC) that implements a deep convolutional network heterogeneous architecture. The SoC includes a system bus, a plurality of addressable memory arrays coupled to the system bus, at least one applications processor core coupled to the system bus, and a configurable accelerator framework coupled to the system bus. The configurable accelerator framework is an image and deep convolutional neural network (DCNN) co-processing system. The SoC also includes a plurality of digital signal processors (DSPs) coupled to the system bus, wherein the plurality of DSPs coordinate functionality with the configurable accelerator framework to execute the DCNN.