公开(公告)号：JP2005071380A

公开(公告)日：2005-03-17

申请号：JP2004248342

申请日：2004-08-27

Applicant: St Microelectronics Sa ,  エスティ マイクロエレクトロニクス エス.エイ.ST Microelectronics S.A.

Inventor： PISTOULET PIERRE

IPC: G06F12/08 ,  G06F12/12 ,  G06F12/14 ,  G06F21/02

CPC classification number: G06F12/1425 ,  G06F12/0875 ,  Y02D10/13

Abstract: PROBLEM TO BE SOLVED: To provide an access controller with a simple structure allowing reduction of peak power consumption. SOLUTION: This access controller controlling access to a data memory has: a means storing a plurality of attributes (ATi) for defining a right of the access to the data memory (DMEM); cache memories (CMEM, CMC) storing a prescribed number of attributes; and a synchronous attribute retrieval circuit (ASC2) retrieving the attribute inside the storage means (DMEM, ATMEM) when the attribute is absent inside the cache memory. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：提供具有简单结构的访问控制器，从而降低峰值功耗。 控制对数据存储器的访问的该访问控制器具有：存储用于定义访问数据存储器（DMEM）的权限的多个属性（ATi）的装置; 存储规定数量属性的缓存存储器（CMEM，CMC）; 以及当高速缓冲存储器内部不存在属性时，在存储装置（DMEM，ATMEM）内检索属性的同步属性检索电路（ASC2）。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：DE602005000038D1

公开(公告)日：2006-08-24

申请号：DE602005000038

申请日：2005-01-27

Applicant: ST MICROELECTRONICS SA

Inventor： PISTOULET PIERRE

IPC: H03K19/003 ,  G06F21/55

公开(公告)号：FR2867325A1

公开(公告)日：2005-09-09

申请号：FR0402159

申请日：2004-03-02

Applicant: ST MICROELECTRONICS SA

Inventor： PISTOULET PIERRE

IPC: G06F11/16 ,  G06F21/52 ,  G06F21/75 ,  G06F21/77 ,  H03K19/003 ,  G06K19/073

公开(公告)号：FR2867286A1

公开(公告)日：2005-09-09

申请号：FR0402161

申请日：2004-03-02

Applicant: ST MICROELECTRONICS SA

Inventor： PISTOULET PIERRE ,  SOURGEN LAURENT

IPC: A61M39/02 ,  G05B19/045 ,  G06K19/073

Abstract: The machine has a flip-flop (31) receiving a following sate code to provide a current state code (CSC) in synchronization with a clock signal. A current state decoder (33) has comparators comparing the code (CSC) and preset codes (SC0-SCk) by full scale decoding to provide identification signals to a NOR gate (35). The gate provides an error signal when the code (CSC) does not correspond to the preset codes having a hamming distance equal to 2. Independent claims are also included for the following: (A) an integrated circuit having state machines (B) a method of manufacturing a state machine of an integrated circuit.

公开(公告)号：FR2859307A1

公开(公告)日：2005-03-04

申请号：FR0310212

申请日：2003-08-27

Applicant: ST MICROELECTRONICS SA

Inventor： PISTOULET PIERRE

IPC: G06F12/08 ,  G06F12/0875 ,  G06F12/12 ,  G06F12/14 ,  G06F21/02 ,  G11C8/20

公开(公告)号：DE602005000038T2

公开(公告)日：2006-12-28

申请号：DE602005000038

申请日：2005-01-27

Applicant: ST MICROELECTRONICS SA

Inventor： PISTOULET PIERRE

IPC: H03K19/003 ,  G06F21/55

公开(公告)号：FR2867326A1

公开(公告)日：2005-09-09

申请号：FR0402160

申请日：2004-03-02

Applicant: ST MICROELECTRONICS SA

Inventor： PISTOULET PIERRE

IPC: G06F21/55 ,  H03K19/003 ,  G06K19/073 ,  H04L9/00

公开(公告)号：FR2859292A1

公开(公告)日：2005-03-04

申请号：FR0310211

申请日：2003-08-27

Applicant: ST MICROELECTRONICS SA

Inventor： PISTOULET PIERRE

IPC: G06F12/08 ,  G06F12/0875 ,  G06F12/14 ,  G11C8/20

Abstract: The device has a cache memory that records attributes, and a dedicated zone (DZ) that stores attributes of a secured memory zone. An attribute search synchro loop intercepts the access control and reads the attribute in a data memory corresponding to the secured memory zone when the access control is sent to the data memory. The synchro loop applies the access control to the data memory. An independent claim is also included for a method for controlling access to a data memory.