Data processing device and method of conducting a logic test in a data processing device
First Claim
1. A data processing device, comprising a processing unit and a test control unit connected to the processing unit, wherein the processing unit and the test control unit are arranged to:
- in response to a normal boot signal, perform a normal boot action which comprises normal booting of the processing unit;
start a logic test of the processing unit;
detect a test abort event;
in response to the test abort event, perform an event response action which comprises aborting the logic test and dedicated booting of the processing unit,wherein said dedicated booting includes executing an event handling routine and said normal booting of the processing unit does not include executing the event handling routine.
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Accused Products
Abstract
A data processing device, comprising a processing unit and a test control unit connected to the processing unit, is described. The processing unit and the test control unit are arranged to: start a logic test of the processing unit; detect a test abort event; and, in response to the test abort event, perform an event response action which comprises aborting the logic test and booting the processing unit, said booting including executing an event handling routine. The event response action may comprise setting a reset vector to an address of the event handling routine. System availability may thus be improved. In particular, the delay between capturing an asynchronous signal and responding to it may be reduced. The test abort event may, for example, be an asynchronous event having certain pre-defined characteristics.
A method of operating a data processing device is also described.
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Citations
19 Claims
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1. A data processing device, comprising a processing unit and a test control unit connected to the processing unit, wherein the processing unit and the test control unit are arranged to:
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in response to a normal boot signal, perform a normal boot action which comprises normal booting of the processing unit; start a logic test of the processing unit; detect a test abort event; in response to the test abort event, perform an event response action which comprises aborting the logic test and dedicated booting of the processing unit, wherein said dedicated booting includes executing an event handling routine and said normal booting of the processing unit does not include executing the event handling routine. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of operating a data processing device, the data processing device comprising a processing unit, wherein the method comprises:
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in response to a normal boot signal, performing a normal boot action which comprises normal booting of the processing unit; starting a logic test of the processing unit; detecting a test abort event; in response to the test abort event, performing an event response action which comprises aborting the logic test and which further comprises dedicated booting of the processing unit, wherein said dedicated booting of the processing unit includes executing an event handling routine and said normal booting of the processing unit does not include executing the event handling routine. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification