Lpc2000

--- In lpc2000@yahoogroups.com, "jayasooriah" <jayasooriah@y...> wrote:
>
> Thank you for confirming JTAG is enabled upon reset before any code is
> executed in a "virgin" device.  This confirms what my client has been
> telling me all along.
> 

i think you're mixing 2 things --- JTAG after reset and JTAG on
"virgin" device.

1) according to user manual '0x00000000' is written into every
pinselect register when reset is low, thus switching JTAG/GPIO pins
into GPIO mode Inputs. 
2) i assume that "virgin" device behaves different with GPIO, this can
be done using simpliest 32 AND gate circuit.

3) How ever -- Philips did not comment on my previous statement --- 
IS THERE a way to reprogram BOOT on CPR enabled devices w/o erasing
all sectors? (by using boot update procedure with patched boot)
  If there is such possibility -- then i consider this CRP unsecure,
and  not effective enough.
Dixi.