公开(公告)号：US20220197990A1

公开(公告)日：2022-06-23

申请号：US17454231

申请日：2021-11-09

申请人： STMicroelectronics S.r.l.

发明人： Antonino Mondello ,  Stefano Catalano ,  Cyril Pascal

IPC分类号： G06F21/44 ,  H04L9/32 ,  G06F11/10

摘要： According to one aspect, a system-on-a-chip is proposed which includes a memory storage, a computation circuit, a comparison circuit, and a validation circuit. The memory storage is configured to store an external software module. The computation circuit is configured to compute several modified software modules from the external software module and compute check values by iteration until obtaining a final check value. Each check value is computed at least from a given modified software module and a check value previously computed, starting with a predefined initial check value. The comparison circuit is configured to compare the final check value to an expected value stored in the system-on-a-chip. The validation circuit is configured to validate the external software module when the final check value is equal to the expected value.

公开(公告)号：US20230409320A1

公开(公告)日：2023-12-21

申请号：US18325519

申请日：2023-05-30

申请人： STMicroelectronics S.r.l.

发明人： Antonino Giuseppe Fontana ,  Giuseppe Guarnaccia ,  Stefano Catalano

IPC分类号： G06F9/30

CPC分类号： G06F9/3004 ,  G06F9/30116 ,  G06F9/30189

摘要： In an embodiment a One-Time Programmable (OTP) memory controller includes a data register, a given number K of shadow-registers, wherein the number K is smaller than a given number N of memory slots of an OTP memory area, a communication interface configured to receive a read request requesting the data of a given memory slot and a control circuit configured to receive a preload start signal and a shadow-register preload enable signal, wherein the control circuit is configured to manage a preload phase and a data-read phase.