Lpc2000

--- In lpc2000@yahoogroups.com, "unity0724" <unity0724@...> wrote:
>
> Hello!
> Thanks to all responses but could we change the subject to:
> "For LPC2103, is JTAG default as OFF or ON after reset"
> Just a simple question and treat it as non-related to CRP.
>

Why do you still have a question?  The User Manual in Section 20.8.2
is very specific.  If both DBGSEL and RTCK are HIGH at reset, JTAG is
enabled at some point following reset.  If either signal is low coming
out of reset, JTAG is disabled and can not be enabled later.

What it doesn't say is WHEN JTAG is enabled relative to reset.  It
could be done in hardware and happen immediately.  Or, it could be
done by the bootloader firmware.

But the User Manual is quite specific about whether it is enabled or not.

Richard