GR920100088A - Διαφανής έλεγχος ολοκληρωμένων κυκλωμάτων. - Google Patents

Διαφανής έλεγχος ολοκληρωμένων κυκλωμάτων.

Info

Publication number
GR920100088A
GR920100088A GR920100088A GR920100088A GR920100088A GR 920100088 A GR920100088 A GR 920100088A GR 920100088 A GR920100088 A GR 920100088A GR 920100088 A GR920100088 A GR 920100088A GR 920100088 A GR920100088 A GR 920100088A
Authority
GR
Greece
Prior art keywords
registers
integrated circuits
test
ram
input
Prior art date
Application number
GR920100088A
Other languages
English (en)
Inventor
Michalis Nikolaidis
Original Assignee
Consulting R & D Corp Koloni S
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Consulting R & D Corp Koloni S filed Critical Consulting R & D Corp Koloni S
Publication of GR920100088A publication Critical patent/GR920100088A/el

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28Testing of electronic circuits, e.g. by signal tracer
    • G01R31/317Testing of digital circuits
    • G01R31/3181Functional testing
    • G01R31/3185Reconfiguring for testing, e.g. LSSD, partitioning
    • G01R31/318522Test of Sequential circuits
    • G01R31/318527Test of counters
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28Testing of electronic circuits, e.g. by signal tracer
    • G01R31/317Testing of digital circuits
    • G01R31/3181Functional testing
    • G01R31/3185Reconfiguring for testing, e.g. LSSD, partitioning
    • G01R31/318533Reconfiguring for testing, e.g. LSSD, partitioning using scanning techniques, e.g. LSSD, Boundary Scan, JTAG
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28Testing of electronic circuits, e.g. by signal tracer
    • G01R31/317Testing of digital circuits
    • G01R31/3181Functional testing
    • G01R31/3185Reconfiguring for testing, e.g. LSSD, partitioning
    • G01R31/318533Reconfiguring for testing, e.g. LSSD, partitioning using scanning techniques, e.g. LSSD, Boundary Scan, JTAG
    • G01R31/318536Scan chain arrangements, e.g. connections, test bus, analog signals
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00Error detection; Error correction; Monitoring
    • G06F11/22Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
    • G06F11/26Functional testing
    • G06F11/27Built-in tests
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C29/00Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
    • G11C29/04Detection or location of defective memory elements, e.g. cell constructio details, timing of test signals
    • G11C29/08Functional testing, e.g. testing during refresh, power-on self testing [POST] or distributed testing
    • G11C29/12Built-in arrangements for testing, e.g. built-in self testing [BIST] or interconnection details
    • G11C29/18Address generation devices; Devices for accessing memories, e.g. details of addressing circuits
    • G11C29/30Accessing single arrays
    • G11C29/32Serial access; Scan testing
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C29/00Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
    • G11C29/04Detection or location of defective memory elements, e.g. cell constructio details, timing of test signals
    • G11C29/08Functional testing, e.g. testing during refresh, power-on self testing [POST] or distributed testing
    • G11C29/12Built-in arrangements for testing, e.g. built-in self testing [BIST] or interconnection details
    • G11C29/38Response verification devices
    • G11C29/40Response verification devices using compression techniques
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00Error detection; Error correction; Monitoring
    • G06F11/22Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
    • G06F11/2205Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested
    • G06F11/221Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested to test buses, lines or interfaces, e.g. stuck-at or open line faults
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00Error detection; Error correction; Monitoring
    • G06F11/22Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
    • G06F11/2273Test methods
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00Error detection; Error correction; Monitoring
    • G06F11/22Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
    • G06F11/26Functional testing
    • G06F11/273Tester hardware, i.e. output processing circuits
    • G06F11/2733Test interface between tester and unit under test
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2201/00Indexing scheme relating to error detection, to error correction, and to monitoring
    • G06F2201/83Indexing scheme relating to error detection, to error correction, and to monitoring the solution involving signatures

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Quality & Reliability (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Tests Of Electronic Circuits (AREA)
  • Test And Diagnosis Of Digital Computers (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)
  • For Increasing The Reliability Of Semiconductor Memories (AREA)

Abstract

Περιγράψαμε μία τεχνική γιά διαφανή έλεγχο ολοκληρωμένωνκυκλωμάτων. Επιτρέπει τον έλεγχο των ολοκληρωμένων κυκλωμάτωνχωρίς απώλεια της κατάστασης του προγράμματος εκτέλεσης μίαςεφαρμογής. Η τεχνική αυτή θεωρεί δυο είδη κυκλωμάτων,συνδιαστικά και ακολουθιακά κυκλώματα από τη μία μεριά, καιμνήμες RAM και μπλοκ καταχωρητών (register files) από τηνάλλη.Για το πρώτο είδος κυκλωμάτων προτείνουμε μία τεχνική τουτύπου διάσωση της κατάστασης, έλεγχος του κυκλώματος,αποκατάσταση της κατάστασης. Αυτη η τεχνική χρησιμοποιεί ένακυκλικό scan path για να μεταφέρει το περιεχόμενο διάφορωνκαταχωρητών μέχρι τις εισόδους δεδομένων μίας μνήμης,αποθηκεύει το περιεχόμενο αυτών των καταχωρητών στη μνήμη,εκτελεί τη φάση ελέγχου, φορτίζει τα αποθηκευμένα δεδομένααπό τη μνήμη στο scan path και τα μεταφέρει πίσω στουςκαταχωρητές.Για το δεύτερο είδος κυκλωμάτων προτείνουμε μία τεχνικήδιαφανούς ελέγχου που ελέγχει τις μνήμες χωρίς να καταστρέφειτο περιεχόμενο τους. Για το σκοπό αυτό προτείνουμε μία τεχνικήπου επιτρέπει την ανεύρεση διαδικασιών διαφανούς ελέγχουμνημών. Αυτές οι διαδικασίες ελέγχου μπορούν να εκτελεσθούνχρησιμοποιώντας τεχνικές κατασκευής για αυτοέλεγχο (BIST) ήτεχνικές δίαυλου προσπέλασης (scan path). Οι διαφανείςδιαδικασίες ελέγχου αποτελούνται από μία διαδικασία πρόβλεψηςυπογραφής προκύπτει εάν διαγράψουμε τις πράξεις εγγραφής και από μία βασική διαδικασία διαφανούς ελέγχου. Η διαδικασία πρόβλεψης υπογραφής προκύπτει εάν διαγράψουμε τις πράξεις εγγραφής από τη βασική διαδικασία διαφανούς ελέγχου. Οι πράξεις ανάγνωσης των οποίων τα δεδομένα δεν αποστέλονται στο κύκλωμα συμπίεσης δεδομένων εξόδου, μπορούν επίσης να διαγραφούν. Αυτη η τεχνική μας επιτρέπει να αποφύγουμε τη συγκάλυψη σφαλμάτων που μπορεί να προκύψει αν κάποια λάθη εμφανισθούν κατά τη διάρκεια της βασικής διαδικασίας διαφανούς ελέγχου και κατά τη διάρκεια της διαδικασίας πρόβλεψης υπογραφής. Η βασική διαδικασία διαφανούς ελέγχου μπορεί να παραχθεί από οποιαδήποτε κοινή (δηλαδή μη διαφανή) διαδικασία ελέγχου χρησιμοποιώντας ορισμένους μετασχηματισμούς. Αυτοί οιμετασχηματισμοί έχουν την ιδιότητα να μη μειώνουν την κάλυψησφαλμάτων όταν το μοντέλο επαληθεύει κάποια συμμετρικήιδιότητα. Η ιδιότητα αυτή επαληθεύεται από όλα σχεδόν ταγνωστά μοντέλα σφαλμάτων μνημών. Η διαφανής διαδικασίαελέγχου μνημών μπορεί επίσης να πραγματοποιηθείχρησιμοποιώντας μόνο τη βασική διαφανή διαδικασία ελέγχου.Αυτό είναι δυνατόν όταν η επαλήθευση των δεδομένων εξόδουπραγματοποιείται από ένα κώδικα ανεύρεσης λαθών (errordetecting code).Μία εναλλακτική λύση χρησιμοποιεί μία βοηθητική μνήμη στηνοποία αποθηκεύουμε ένα τμήμα της μνήμης κάθε φορά. Το τμήμααυτό της μνήμης ελέγχεται από μία διαφανή ή μία κοινήδιαδικασία ελέγχου. Στην περίπτωση της χρήσης κοινήςδιαδικασίας ελέγχου το περιεχόμενο του ελεγχθέντος τμήματοςαποκαθίστανται χρησιμοποιώντας το περιεχόμενο της βοηθητικήςμνήμης.Για διαφανή ή για κοινή κατασκευή για αυτοέλεγχο ένθετωνμνημών, προτείνουμε ένα κύκλωμα που διασυνδέεται: σαν Up/DownLFSR ώστε να παράγει τη σειρά διε
GR920100088A 1992-03-05 1992-03-05 Διαφανής έλεγχος ολοκληρωμένων κυκλωμάτων. GR920100088A (el)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GR92100088 1992-03-05

Publications (1)

Publication Number Publication Date
GR920100088A true GR920100088A (el) 1993-11-30

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ID=10941053

Family Applications (1)

Application Number Title Priority Date Filing Date
GR920100088A GR920100088A (el) 1992-03-05 1992-03-05 Διαφανής έλεγχος ολοκληρωμένων κυκλωμάτων.

Country Status (6)

Country Link
US (1) US5469445A (el)
EP (1) EP0585435B1 (el)
AT (1) ATE198000T1 (el)
DE (1) DE69329720T2 (el)
GR (1) GR920100088A (el)
WO (1) WO1993018457A1 (el)

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US8719752B1 (en) * 2013-01-22 2014-05-06 Lsi Corporation Hierarchical crosstalk noise analysis model generation
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Also Published As

Publication number Publication date
US5469445A (en) 1995-11-21
DE69329720D1 (de) 2001-01-11
ATE198000T1 (de) 2000-12-15
WO1993018457A1 (en) 1993-09-16
DE69329720T2 (de) 2002-08-22
EP0585435B1 (en) 2000-12-06
EP0585435A1 (en) 1994-03-09

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