Appeal No. 97-2111
Application 08/158,345
cancelled as the result of an amendment after final rejection
which was entered by the examiner. Claims 16-19 are still
pending in this application but stand withdrawn from
consideration by the examiner as being directed to a nonelected
invention.
The claimed invention pertains to a method and apparatus
for operating the Boundary-Scan master of a Boundary-Scan testing
apparatus.
Representative claims 20 and 21 are reproduced as
follows:
20. A method of operating a Boundary-Scan master coupled
to a data and control bus, said method comprising steps of:
determining when an external test (EXTEST) instruction
will assert a system action; and
requesting control of said data and control bus prior to
said assertion of said system action.
21. A method as claimed in Claim 20 wherein:
said Boundary-Scan master generates a test mode select
(TMS) signal which controls Boundary-Scan testing of an
integrated circuit (IC) having an instruction register and a test
access port (TAP) controller for operating in a plurality of
states, including an Exitl-DR state; and
said determining step comprises a step of identifying
when said EXTEST instruction is loaded in said instruction
register of said IC and said TAP controller has entered said
EXIT1-DR state.
The examiner relies on the following references:
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