or
Bookmark and Share
Direct access logic testing in integrated circuits
   
Document Number
US Patent 6385748
Issued Date
May 7, 2002
Link
Inventors
Chen; Ping (San Jose, CA)
Map
Abstract
A method and circuit for allowing direct access logic testing in integrated circuits. In one embodiment, an interface between integrated circuit core logic and integrated circuit user-defined logic is exposed, and the integrated circuit core logic and the integrated circuit user-defined logic is tested via the exposed interface. In another embodiment, an integrated circuit has logic selection circuitry connected with core logic and user-defined logic. The logic selection circuitry is used to selectively test the core logic and user-defined logic.
Drawing
Direct access logic testing in integrated circuits - US Patent 6385748 Drawing
Drawing from US Patent 6385748
Tags:
Description:
Amusing 0%
Clever 0%
Complex 0%
Efficient 0%
Historic 0%
Important 0%
Innovative 0%
Interesting 0%
Practical 0%
Simple 0%
Number of Claims:
32
Comments:
no comments yet
Owner
NEC Electronics, Inc. (Santa Clara, CA)
Published
May 7, 2002
Application Number
09/281,370
Filed
March 30, 1999
US Classification
714/724   365/201
Int'l Classification
G01R   31/317   (20060101)   G01R   31/28   (20060101)   G01R   31/3185   (20060101)  
Examiner
Assistant Examiner
USPTO Field of Search
714/724   714/726   714/727   714/735   714/745   714/725   714/218   714/200   714/234   714/30   714/728   714/733   714/718   714/734   714/8   714/33   712/38   712/226   709/204   324/158.1   324/380   324/402   324/393   710/260   710/263   710/269   710/48   710/267   326/46   365/200   365/201   365/222   365/233   365/230.03   716/4  
Related Patents
6751768 - Hierarchical creation of vectors for quiescent current (IDDQ) tests for system-on-chip circuits - Owned by Agilent Technologies, Inc. (Palo Alto, CA)

A method is presented for generating test vectors for an integrated circuit. Input test vectors and output test vectors are generated for non-core cell portions of the integrated circuit. Input test vectors and output test vectors are generated for core cell partitions of the integrated circuit. The input test vectors for the non-core cell portions and the input test vectors for the core cell partitions are combined into a single combined input test vector.

7143225 - Apparatus and method for viewing data processor bus transactions on address pins during memory idle cycles - Owned by Advanced Micro Devices, Inc. (Sunnyvale, CA)

A processing system comprising: i) a processor core; ii) a memory; iii) a plurality of peripheral devices; and iv) a communication bus coupled to the processor core, the memory and the peripheral devices for transferring bus transactions between the processor core, the memory, and the peripheral devices. The communication bus comprises a bus controller for receiving memory access request data associated with a first memory access to a first location in the memory by a first one of the peripheral devices and transferring the received memory access request data to at least one memory address pin used to access the memory.

7353362 - Multiprocessor subsystem in SoC with bridge between processor clusters interconnetion and SoC system bus - Owned by International Business Machines Corporation (Armonk, NY)

A System-on-Chip (SoC) component comprising a single independent multiprocessor subsystem core including a plurality of multiple processors, each multiple processor having a local memory associated therewith forming a processor cluster; and a switch fabric means connecting each processor cluster within an SoC integrated circuit (IC). The single SoC independent multiprocessor subsystem core is capable of performing multi-threading operation processing for SoC devices when configured as a DSP, coprocessor, Hybrid ASIC, or network processing arrangements. The switch fabric means additionally interconnects a SoC local system bus device with SoC processor components with the independent multiprocessor subsystem core.

7412588 - Network processor system on chip with bridge coupling protocol converting multiprocessor macro core local bus to peripheral interfaces coupled system bus - Owned by International Business Machines Corporation (Armonk, NY)

A network processor includes a system-onchip (SoC) macro core and functions as a single chip protocol converter that receives packets generating according to a first protocol type and processes the packets to implement protocol conversion and generates converted packets of a second protocol type for output thereof, the process of protocol conversion being performed entirely within the SoC macro core. The process of protocol conversion contained within the SoC macro core does not require the processing resources of a host system. The system-on chip macro core includes a bridge device for coupling a local bus in the protocol converting multiprocessor SoC macro core local bus to peripheral interfaces coupled to a system bus.

Claims
Description
About| FAQs| Terms & Disclaimer| Link to Us| Contact Us