公开(公告)号：US20220263509A1

公开(公告)日：2022-08-18

申请号：US17671844

申请日：2022-02-15

Applicant: STMicroelectronics S.r.l.

Inventor： Daniele MANGANO ,  Alessandro INGLESE

IPC: H03K19/0175 ,  G06F13/12

Abstract: A microcontroller includes an input pin and internal pull-up and pull-down circuits. External pull-up and pull-down circuits are also coupled to the input pin. The microcontroller is operable according to different configuration modes which include configuring the input pin in a floating state. A control logic then configures the internal pull-up and pull-down circuits according to an internal pull-up mode to acquire a first input voltage signal (at a first logic value) from the input pin, and further configure the internal pull-up and pull-down circuits according to an internal pull-down mode to acquire a second input voltage signal (at a second logic value) from the input pin. A selection of the operating mode of the MCU is then made based on the acquired first and second logic values.

公开(公告)号：US20220382355A1

公开(公告)日：2022-12-01

申请号：US17752229

申请日：2022-05-24

Applicant: STMicroelectronics S.r.l.

Inventor： Antonino MONDELLO ,  Alessandro INGLESE

IPC: G06F1/3206 ,  G06F15/78

Abstract: A system on chip includes a monitoring circuit that detects an anomalous behavior of the system on chip. The monitoring circuit compares a behavior of the system on chip to at least one reference parameter representing the anomalous behavior of the system. Using this comparison, the anomalous behavior of the system on chip is detected. An interrupt is the issued in response to the detected anomalous behavior of the system on chip.