Simple JTAG interface circuit.
==============================


51R resistors on outputs are not nessecary, use wires instead ;)
IC  can by any 74XX244  can be taked from very old pc ot just buy it, it is very cheap
all other parts can be within +200% -50% of specified values range.



PL1 25wayD Male                                                 PL2 20wayIDC

PL1/17-25 <--------------+-------------------------+--+-----------<  Gnd
                         |                         |  |              
                         |    AC244          200nF =  = 4.7uF        
                         | +------------+  Vcc     |  |                  either use from usb,    
         TDI          0v +-| 1       20 |-+--------+--+-----+-----<  +5v either from external source
PL1/5  >-------------------| 2       19 |-+                 |             
         TMS               | 3       18 |-----XXXX---------------->  TDI
PL1/3  >-------------------| 4       17 |     51R           |        
         TCLK              | 5       16 |-----XXXX---------------->  TMS
PL1/4  >-------------------| 6       15 |     51R           |          
                           | 7       14 |-----XXXX---------------->  TCLK
                      +----| 8       13 |     51R           |          
                      |    | 9       12 |-----XXXX---+      |        
                      |  +-| 10      11 |     51R    |      |       
                      |  | +------------+            |      |       
                      |  V GND                       |      |        
                      +------------------------------------------<   TDO
         TDO                                         |      |       
PL1/11 <---------------------------------------------+      |     
                                                            |     
                            DTC114       +---xxxx-----------+ 
                                         |   100R 
                            DTC114   /---+---xxxx----------------<   RST
         RST            1k        | /        51R
PL1/2  >----------------XXXX--+---|<
                              |   | \
                              X      V
                         10k  X      |  
                              X      |
                              |      |
                              V      V
                              GND    GND