JTAG

reuters photography upclose pussy glass sex toy vacation rental florida best natural acne treatments cowboys from hell reported crimes ron white artificial grass axe handles digimon cartoon porn sexy art sexy shower e learning centres guide to e learning personal training beasthunt washington state court form magellan gps hamilton real estate adult date mommy loves pussy oxford pine trees salma hayak bath salt bulk maryland air national guard always look on the bright side of life e machines free fisting molly holly in thongs enviromental issues on the barrier islands yonkers drunk driving lawyer making metal sculptures ask jeeves a question chyna sex tape chicken dance superfreak edward spiegel raleigh singles exercise ball protective behaviours we trust make a penis pump at home boy gay mini cooper temple of boom la morrowind walkthrough auto napa store speculumpages web ranking long term care exams new home in las vegas bison steak moviedrive what is a pcm arch doors saddleback church huge pussy cliffnotes roman catholic church directory daddy yankee mp3 do or die upgrade windows xp home edition professional wall face plates free cumshots gallery groovehouse mp3 in package singapore tour female fingering techniques bike racks erotic free stories teen school girls oshkosh new college graduates evolution on earth brazilian bang gundam seed characters x men golf clip art pregnant cartoons big latina ass just 18 gate operators powerpuff girls xxx fat gay porn php apache windows xp best of jessica alba meat industry authority conspiracy theory reading comprehension plots father and daughter stories cheap paintball chopper state of florida individual health insurance ninjitsu shoes speed training naomi in the living room avril lavign modells pc magazine vocal ringtones interior designer boston profit margin ratios synthroid ritalin philips ringtones metal testing insane games. com west wing series five dvd serre jardin latina pussy thumb oh promise me that someday you and i north node of the moon the third law of thermodynamics rolling stone covers posters the old dogs australasian tour pussy sucking movie free talking ringtones santa barbara community college football online pain medications without prescription rap ringtone download caller ringtones torrance california real estate the rate of the increase of knowledge free alltel ringtones 32 baby premature week insurers administrative corp. jazz festival new orleans 2005 using tapi noble ok public schools musketeers names texas dui stop over pimpin video world true ringtones austin rental wedding roses lavender kids sudoku puzzle vivarium download sharp ringtones phased investment ati bios flashing adobe photo shop 4.0 tutorial microsoft agenda templates joseph joseph yeo yeo buy diovan panama city campgrounds download cingular ringtones action management program leads to nothing marine specialty tools toques ringtone recovering deleted files mac os x election preliminary equipment trailer plans marios seattle rivotril poems for mothers pregnancy gender charts tool third eye download tmobile ringtones logical star topology examination online download music ringtones free pop ringtones mono ringtones evaluation program review technique xanax jbo site myspace.com polyclonal versus monoclonal antibody ropa interior para hombres thermocouple applications omega watch photo rainbow six 3 for gamecube vehicle dynamics buy tamiflu download qwest ringtones nude ass video anime nudity organizing tool box ericsson ringtone individual career development plan free music ringtones les droits des animaux pursuit bike video cassette to dvd pescuit jetblueairlines free punk ringtones patterson car sales inventory management and accounting remote access firewall cheap ritalin abc the view recipes tip on cleaning the face toddler baseball jersey zanaflex online working title internships the world of pimping nero version history The Joint Test Action Group (JTAG) standardized a 5 pin boundary-scan test port as IEEE Std. 1149.1, "Standard Test Access Port and Boundary-Scan Architecture".

While originally intended for boundary-scan testing of PCB assemblies, to replace bed-of-nails testing, the JTAG port included in many popular microprocessors is also often used for programming and debugging.

"If you have information on how to connect a JTAG probe to a Nokia phone, please let me know."

There are five pins:

• TCK/clock
• TMS/mode select
• TDI/data in
• TDO/data out
• TRST/reset (optional), when driven low, resets the internal state machine.

Except for TCK, all other JTAG lines should be pulled high via a resistor.

WARNING: unconfirmed pinout. Please add links to pinout standard.

20 Pin JTAG PinOut

Which one of these is right?

   Pin Function Pin Function
   1   TRST     2   GND
   3   TDO      4   GND
   5   TDI      6   GND
   7   TMS      8   GND
   9   TCK     10   GND
   11  VPP_E   12   GND
   13  A/W     14   GND
   15  User 0  16   GND
   17  Rdy/Bsy 18   GND
   19  User 1  20   Vcc

    1  3.3 V    2  3.3 V
    3 nTRST     4 GND
    5 TDI       6 GND
    7 TMS       8 GND
    9 TCK      10 GND
   11  --      12 GND
   13 TDO      14 GND
   15 nRST     16 GND
   17  --      18 GND
   19  --      20 GND 

external links

• the OpenJTAG wiki ( http://openjtag.net/ )
• "When designing development boards what style JTAG connector should I use?" The 20-pin JTAG connector.
• "Introduction to JTAG" by Rob Oshana 2002
• "JTAG FAQ" by Stas Khirman 2004
• a parallel port JTAG Debugger circuit for Philips LPC2xxx ARM microcontrollers. by K9JTAG (uses Schmitt trigger inverters, so it can connect 3.0 V target boards to a standard 5.0 V parallel port)
• parallel port JTAG "Building Simple JTAG Cable" (resistors only)
• "JTAG Bus Description"
• Wikipedia:JTAG
• OpenWRT wiki: JTAG Cables
• the Jtag-Arm9 project at Sourceforge gives instructions and photographs of a Home made JTAG interface (also shows an example of prototyping using SMT IC)
• [

1000 http://freelabs.com/~whitis/electronics/jtag/ the JTAG protocol] by Mark Whitis

• "Building AVR Jtag clone" includes schematics and firmware.

---