公开(公告)号：FR2831968A1

公开(公告)日：2003-05-09

申请号：FR0114300

申请日：2001-11-06

Applicant: ST MICROELECTRONICS SA

Inventor： RUAT LUDOVIC ,  KINOWSKI PAUL ,  CZAJOR ALEXANDER

IPC: G06F1/12 ,  H03L7/00 ,  H04L7/04 ,  G06F1/14

Abstract: Calibration device (CAL) receives a local clock signal from an oscillator (OSC) and applies a correction value to the signal to produce a corrected clock signal (CKC). The correction value is determined based on an external reference signal. The invention also relates to a corresponding integrated circuit, microcontroller and calibration method.

公开(公告)号：FR2830955A1

公开(公告)日：2003-04-18

申请号：FR0113270

申请日：2001-10-15

Applicant: ST MICROELECTRONICS SA

Inventor： RUAT LUDOVIC ,  KINOWSKI PAUL ,  CZAJOR ALEXANDER

IPC: G06F13/38 ,  H04L7/00

Abstract: The receiver accepts frames which comprise standard characters and break characters longer than the standard character. The receiver includes two detectors for the two character types, the standard detector being controlled by the overlength break character detector. The asynchronous frame receiver (UART1) is configured to receive frames which comprise standard characters and, within the header, a break character which is longer than the standard character. The receiver includes a break character detection element (SM1) and a standard character detection element (SM2). The standard character processing element (SM2) is distinct from the break character detection element (SM1) and is activated by the break character detection element when this itself is active. A selection device is provides so that the circuit can operate in two modes, in the first of which the break character detection element is de-activated. In the second mode the break character detection element is activated and thus controlling the standard character detection element.

公开(公告)号：FR2830953A1

公开(公告)日：2003-04-18

申请号：FR0113268

申请日：2001-10-15

Applicant: ST MICROELECTRONICS SA

Inventor： RUAT LUDOVIC ,  KINOWSKI PAUL ,  CZAJOR ALEXANDER

IPC: G06F13/38 ,  G06F13/40 ,  G06F13/28 ,  H04L7/00

Abstract: Asynchronous frame receiver for frames that begin with a break character that comprises a fixed number of bits of the same value. The device has means allowing hot connection to an asynchronous data bus. The receiver comprises: break character detection means (SM, FWM); and means for: (1) quitting an idle state (IDLE) when a break character has been detected and (2) switching to at least one operating mode in which the determined characters of an asynchronous frame can be detected by the frame receiver. The invention also relates to a corresponding hot connection method for use with an asynchronous data bus.