Lpc2000

It is the Return Clock.  It is used for deglitching the return signal.
Ideally, the chip under test would have zero delay getting the clock on
board.  But it does have some delay. The RTCK is the image to of the
JTAG clock being used by the chip. For very fast clocking, this allows
the debugger to sync up with the chip under test.

 

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From: lpc2000@yahoogroups.com [mailto:lpc2000@yahoogroups.com] On Behalf
Of Leon Heller
Sent: Wednesday, January 18, 2006 3:03 AM
To: lpc2000@yahoogroups.com
Subject: Re: [lpc2000] JTAG - RTCK ?

 

----- Original Message ----- 
From: "Soentgerath, Guido" <Guido.Soentgerath@...>
To: <lpc2000@yahoogroups.com>
Sent: Wednesday, January 18, 2006 9:05 AM
Subject: [lpc2000] JTAG - RTCK ?


> Hello all,
> can someone give me an explanation for RTCK  or  a hint where I can
find
> some more infos about this signal ?
> Thanks in advance!

I found a document on the ARM web site a long time ago which describes
the 
JTAG interface in detail. Can't remember where, though.

Leon 




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