Processing resource apparatus and method of synchronising a processing resource
AssigneeFreescale Semiconductor, Inc.
InventorsFlorian Bogenberger, Anthony Reipold, Oleksandr Sakada
Life of this patent
Estimating the term…
Abstract
A processing resource apparatus comprises a reference processing module comprising a set of reference stateful elements and a target processing module comprising a set of target stateful elements. A scan chain having a first mode for supporting manufacture testing is also provided, the scan chain being arranged to couple the reference processing module to the target processing module. The scan chain also has a second mode capable of synchronising the set of target stateful elements with the set of reference stateful elements in response to a synchronisation signal.
Claims31
A processing resource apparatus comprising:
- a reference processing module comprising a set of reference stateful elements;
- a target processing module comprising a set of target stateful elements;
- and
- a scan chain having a first mode for supporting manufacture testing,
- wherein the scan chain is arranged to couple the reference processing module to the target processing module, the scan chain having a second mode capable of synchronising the set of target stateful elements with the set of reference stateful elements in response to a synchronisation signal.
(canceled)
(canceled)
(canceled)
(Canceled)
(canceled)
(canceled)
(canceled)
(Canceled)
(canceled)
(canceled)
(canceled)
A method of synchronising a processing resource comprising a reference processing module coupled to a target processing module by a scan chain, the method comprising:
- using the scan chain to shift cyclically state data associated with a set of reference stateful elements of the reference processing module around the set of reference stateful elements via control logic;
- and
- using the scan chain to shift cyclically the state data around a set of target stateful elements of the target processing module.
A method of synchronising a processing resource comprising a reference processing module coupled to a target processing module by a scan chain, the method comprising:
- using the scan chain to couple a set of reference stateful elements of the reference processing module to a set of target stateful elements of the target processing module;
- preventing clocking of the set of reference stateful elements;
- and
- clocking the set of target stateful elements, thereby copying in parallel respective state data of elements of the set of reference stateful elements to respective elements of the set of target stateful elements.
Dependencies are inferred from the claim text.