公开(公告)号：FR2790117A1

公开(公告)日：2000-08-25

申请号：FR9902117

申请日：1999-02-19

Applicant: ST MICROELECTRONICS SA

Inventor： PLOURDE OLIVIER

IPC: G06F9/445 ,  G06F1/04

Abstract: Activation of an auxiliary oscillator (OSC) of a micro-controller generates of a clock signal (PHI1ROM) for reading of an option word from a memory of the micro-controller clocked by the signal (PHI1ROM). At least a bit of the option word id loaded into a configuration register of at least an internal circuit of the micro-controller (MCU).

公开(公告)号：FR2874766A1

公开(公告)日：2006-03-03

申请号：FR0409307

申请日：2004-09-02

Applicant: ST MICROELECTRONICS SA

Inventor： PLOURDE OLIVIER

IPC: H03B5/06 ,  G06F1/04 ,  G06F1/08

Abstract: L'invention concerne un procédé de configuration d'un système d'horloge d'un microcontrôleur comprenant un oscillateur principal (OSC), caractérisé en ce qu'il comprend les étapes d'activation dudit oscillateur principal et d'un oscillateur de secours (VCO) en mode initialisation, de génération d'un signal d'horloge à partir dudit oscillateur de secours, et d'application du signal d'horloge au microcontrôleur pour démarrer celui-ci.

公开(公告)号：FR2850176A1

公开(公告)日：2004-07-23

申请号：FR0300442

申请日：2003-01-16

Applicant: ST MICROELECTRONICS SA

Inventor： LENDRE SANDRINE ,  PLOURDE OLIVIER ,  ROCHE FRANCK

IPC: G06F1/04 ,  G06F1/12

Abstract: The circuit has a decounter (DCNT) producing a time base signal (TBS) from a clock signal (H1) and count value (TBVAL1). A counter, register, and logic circuit (CNT,CREG,CCT) find another count value (TBVAL2) equal to a number of periods of another clock signal (H2) appearing during a time interval equal to periods of the signal (TBS). The decounter produces another time base signal from the signal (H2) and value (TBVAL2).

公开(公告)号：FR2850176B1

公开(公告)日：2005-04-15

申请号：FR0300442

申请日：2003-01-16

Applicant: ST MICROELECTRONICS SA

Inventor： LENDRE SANDRINE ,  PLOURDE OLIVIER ,  ROCHE FRANCK

IPC: G06F1/04 ,  G06F1/12

Abstract: The circuit has a decounter (DCNT) producing a time base signal (TBS) from a clock signal (H1) and count value (TBVAL1). A counter, register, and logic circuit (CNT,CREG,CCT) find another count value (TBVAL2) equal to a number of periods of another clock signal (H2) appearing during a time interval equal to periods of the signal (TBS). The decounter produces another time base signal from the signal (H2) and value (TBVAL2).

公开(公告)号：FR2790117B1

公开(公告)日：2001-09-14

申请号：FR9902117

申请日：1999-02-19

Applicant: ST MICROELECTRONICS SA

Inventor： PLOURDE OLIVIER

IPC: G06F9/445 ,  G06F1/04

公开(公告)号：FR2788145B1

公开(公告)日：2001-08-17

申请号：FR9900037

申请日：1999-01-05

Applicant: ST MICROELECTRONICS SA

Inventor： PLOURDE OLIVIER

IPC: G06F9/445

Abstract: A method for resetting a microcontroller includes a reset sequence to make the microcontroller go from a power-off mode to a run mode when the level of a supply voltage goes over a threshold. The reset sequence includes reading an option word stored in a programmable memory by the user for configuring internal circuits of the microcontroller, particularly circuits that are effected by the reset sequence.

公开(公告)号：FR2788145A1

公开(公告)日：2000-07-07

申请号：FR9900037

申请日：1999-01-05

Applicant: ST MICROELECTRONICS SA

Inventor： PLOURDE OLIVIER

IPC: G06F9/445

Abstract: The initialisation commences with a phase (I1) where an option word stored in user-programmed memory is fetched to configure internal circuits of the microcontroller. In a second phase (I3) a delay is provided for the starting and stabilising of the clock oscillator, and in a third phase (I4) the microcontroller address bus is loaded with the start of a user program in microcontroller memory.