Patent EP0145866A2 successfully refreshed from Google Patents.
EP0145866A2
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Test and maintenance system and method for a data processing system
Assignee: Bull HN Information Systems Italia SpA
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Filing: 1984-09-28
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Granted: —
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Expires: 2004-09-28
Abstract
Abstract A test and maintenance system for use with a data processing system comprising a specialized circuit set wherein the circuit set registers can be configured into a serial array, a clock signal distribution system capable of delivering controlled clock signals to selected serial arrays, a maintenance data processor for providing predetermined signal groups, and addressing apparatus responsive to the predetermined signal groups for loading and unloading register arrays in response to the pre-determined signals. The disclosed apparatus permits a predetermined signal group to be entered into the serial register array, in a predetermined number of clock cycles (i.e. series of operations performed on the data), shifting of the resulting signals from the serial register array and signals outputting to data processing unit for display or analysis. By comparing the expected result for a given initial state with the actual result of an operation sequence, the accuracy of the operation of a data processing system, or any portion thereof, can be established. The test and maintenance system includes a group of registers and register cells through which data signals can be serially shifted. The serially coupled registers and register cells are coupled to active registers of the data processing systems and data signals can be extracted from or entered into the data processing system while the system is in operation. In this manner, the status of the system can be determined or control signals can be entered into the data processing system without halting operation.
Inventors
- 👤 James L. King
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 14:15
CPC Classifications
G; G06; G06F; G06F11/00; G06F11/30; G06F11/22; G06F11/2205; G06F11/2236; G01; G01R; G01R31/00; G01R31/28; G01R31/317; G01R31/3181; G01R31/3185; G01R31/318505; G01R31/318533; G01R31/318558; G06F11/2268
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
146 words
Test and maintenance system for a data processing system comprising: - a plurality of coupled register cells a first group of said plurality of register cells adapted to receive da ta signals from a first associated group of registers of said data processing system, a second group of said t plurality of register cells adapted to apply data signals to a second associated group of register cells of said data processing means; - means responsive to external control signals for shift ing data signals into and out of said plurality of re- gister cells independent of the operation of said data processing system; and --means for preventing receiving of data signals by said first group of register cells and for preventing application of data signals to said second group of cells du ring shifting of data signals into and out of said plurality of register cells.
Claim 2
Dependent Claim
146 words
Test and maintenance system for a data processing system comprising: - a plurality of coupled register cells a first group of said plurality of register cells adapted to receive da ta signals from a first associated group of registers of said data processing system, a second group of said t plurality of register cells adapted to apply data signals to a second associated group of register cells of said data processing means; - means responsive to external control signals for shift ing data signals into and out of said plurality of re- gister cells independent of the operation of said data processing system; and --means for preventing receiving of data signals by said first group of register cells and for preventing application of data signals to said second group of cells du ring shifting of data signals into and out of said plurality of register cells.
Claim 3
Dependent Claim
22 words
Test and maintenance system of claim 1 wherein said plura lity of coupled register cells is coupled in a serial con figuration.
Claim 4
Dependent Claim
35 words
Test and maintenance system of claim 1 wherein a selected one of said plurality of register cells is adapted to receive data signals indicating an-occurrence of a predeter mined condition in said data processing system.
Claim 5
Dependent Claim
39 words
The test and maintenance system of claim 1 further includ ing a maintenance processor, said maintenance processor entering preestablished data signals into said plurality of registers, said maintenance processor also receiving data signals stored in said plurality of registers.
Claim 6
Independent Claim
143 words
The method of testing and controlling a data processing system said data processing system being provided with a plurality of register cells a first group of said plurality of register cells receiving data signals from register cells of said data pro ces.sing system, a second group of cells applying data signals to register cells of said data processing system, comprising the following steps: - entering predetermined data signals into said plurality of register cells when entering of control signals into said data processing system is to be performed; - removing data signals from said plurality of register cells when determination of a status of said data pro cessing system is to be performed; and - preventing transfer of data signals between said data processing system and said plurality of cells during said entering into and said removing from said plurali ty of cells.
Claim 7
Independent Claim
143 words
The method of testing and controlling a data processing system said data processing system being provided with a plurality of register cells a first group of said plurality of register cells receiving data signals from register cells of said data pro ces.sing system, a second group of cells applying data signals to register cells of said data processing system, comprising the following steps: - entering predetermined data signals into said plurality of register cells when entering of control signals into said data processing system is to be performed; - removing data signals from said plurality of register cells when determination of a status of said data pro cessing system is to be performed; and - preventing transfer of data signals between said data processing system and said plurality of cells during said entering into and said removing from said plurali ty of cells.
Claim 8
Dependent Claim
164 words
Test and maintenance system for a data processing system said data processing system being implemented with micro packs, each micropack enclosing registers and logic elements for performing normal data processing operations; said test and maintenance system comprising: - a maintenance processor; - a plurality of serially connected register cells in said micropacks, said cells being adapted to receive data signals from and transfer data signals to other components of said data processing system, a first group of said plurality of register cells adapted to receive data signals from associated register elements, a second group of said plurality of register cells adapted to apply data signals to associated register elements; - means for shifting data signals through said plurality of serial register cells independently of operation of said data processing system; and - means for preventing transfer of data signals between said register elements and said plurality of serial re- gister cells when data signals are being shifted through said plurality of serial register cells.
Claim 9
Dependent Claim
164 words
Test and maintenance system for a data processing system said data processing system being implemented with micro packs, each micropack enclosing registers and logic elements for performing normal data processing operations; said test and maintenance system comprising: - a maintenance processor; - a plurality of serially connected register cells in said micropacks, said cells being adapted to receive data signals from and transfer data signals to other components of said data processing system, a first group of said plurality of register cells adapted to receive data signals from associated register elements, a second group of said plurality of register cells adapted to apply data signals to associated register elements; - means for shifting data signals through said plurality of serial register cells independently of operation of said data processing system; and - means for preventing transfer of data signals between said register elements and said plurality of serial re- gister cells when data signals are being shifted through said plurality of serial register cells.
Claim 10
Dependent Claim
60 words
The test and maintenance system of claim 6., said further including a first register cell of said plurality of serial register cells'coupled to a plurality of register elements containing status information, said status information register elements applying a signal to said first register cell in response to an occurrence of at least one predefined condition in said data processing elements.
Claim 11
Dependent Claim
89 words
Method for changing control signals in control register during operation of data processing systems comprising the steps of: 1. Providing a serial array of register cells, each of said register cells applying a data signal stored therein to an associated control register cell; 2. electrically decoupling said serial array of register cells from said associated register cells; 3. shifting a predetermined sequence of data si-- gnals into said serial array of register cells; and 4. electrically coupling said serial array of re- gister cells with said associated re-gister cells.
Claim 12
Dependent Claim
89 words
Method for changing control signals in control register during operation of data processing systems comprising the steps of: 1. Providing a serial array of register cells, each of said register cells applying a data signal stored therein to an associated control register cell; 2. electrically decoupling said serial array of register cells from said associated register cells; 3. shifting a predetermined sequence of data si-- gnals into said serial array of register cells; and 4. electrically coupling said serial array of re- gister cells with said associated re-gister cells.
Claim 13
Dependent Claim
142 words
Test and maintenance system for use with a data process ing system comprising: - a first plurality of register cells coupled to register cells of said data processing system; said first plura lity of register cells receiving data signals from associated register cells of said data processing system; - a second plurality of register cells coupled to register cells of said data processing'system, said second plurality of register cells applying data to associated register cells of said data processing system; - means for entering predetermined data signals into said second plurality of register cells and for receiving data signals from said first plurality of register; and - means for preventing transfer of data signals between said data processing system and said first and second plurality of registers when said means for entering and for receiving data signals is transferring data si gnals.
Claim 14
Dependent Claim
142 words
Test and maintenance system for use with a data process ing system comprising: - a first plurality of register cells coupled to register cells of said data processing system; said first plura lity of register cells receiving data signals from associated register cells of said data processing system; - a second plurality of register cells coupled to register cells of said data processing'system, said second plurality of register cells applying data to associated register cells of said data processing system; - means for entering predetermined data signals into said second plurality of register cells and for receiving data signals from said first plurality of register; and - means for preventing transfer of data signals between said data processing system and said first and second plurality of registers when said means for entering and for receiving data signals is transferring data si gnals.
Claim 15
Dependent Claim
60 words
The test and maintenance system of claim 9 wherein said first plurality of register and said second plurality of register are coupled in a serial configuration, wherein said means for entering data signals in and for re ceiving data signals from said first and said second plurality of register operates to shift said data si-.. gnals in said serial configuration.
References Cited (Backward Citations)
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