Probably an overkill but this webpage has a lot of useful information on JTAG (it might be worth talking to Mark Whitis and/or checking out some links on the page for the plan9 JTAG effort).
http://www.freelabs.com/~whitis/electronics/jtag/
Probably an overkill but this webpage has a lot of useful information on JTAG (it might be worth talking to Mark Whitis and/or checking out some links on the page for the plan9 JTAG effort).
http://www.freelabs.com/~whitis/electronics/jtag/