PCAN-Router – User Manual
14
4.2
J5 Connector Panel: JTAG Ports
The free connector panel J5 on the board of the PCAN-Router can
be used as an access possibility to the JTAG ports of the
microcontroller LPC2194/01 (
μ
C) for hardware debugging.
Pin
Signal
Port
μ
C Internal Wiring
1, 2
GND
3 /Reset
/Reset
Pull-up
4 3.3
V
5 TCK P1.29
Pull-down
(R30)
6 TMS P1.30
Pull-up
7 TDO P1.27
Pull-up
8 TDI P1.28
Pull-up
9 RTCK
P1.26
Pull-down
(R31)
10 TRST P1.31
Pull-up
If constant internal pull-down wiring of the TCK or RTCK signals is
not suitable for your purposes, you can remove the respective pull-
down resistor on the circuit board of the PCAN-Router by soldering
it out. Both resistors (each 10 k
) are located next to the connector
panel J5 (see figures).
Board top side
Board bottom side
