JTAG - /TRST Pin state on the LPC213x 2005-01-24 by jim_e_dallas FYI, I just found out that for the JTAG interface to work proprly on the LPC213xdevices, P0.31 (/TRST) needs to be tied high. (unless you are want to reset the JTAG interface.) This was not clear in the documentation. Regards, Jim