14-Pin 2.54Mm Jtag Converter - TASKING MPC5X Hardware User Manual

14-pin 2.54mm JTAG Converter

If your target features 14-pin 2.54mm pitch JTAG target debug connector, use 14-pin 2.54 mm
JTAG Converter which acts as a pinout converter. It must be ordered separately. The converter is
used only in conjunction with solutions supporting MPC5xxx/SPC5 Aurora trace interface (e.g.
MPC5x/SPC5x Aurora Active Probe).
The following pinout is valid on the target side:
Signal Direc- Signal Descrip-
tion tion
O JTAG
I JTAG
O JTAG
Nexus Event In-
O (not used)
put
IO Reset
Reference
I
Voltage
Not Connected
Signal Direction is described from the BlueBox perspective.
Mandatory pins on the microcontroller side are GND, VDD, RESET, TMS, TDI, TDO and TCK.
The JCOMP is an optional pin. Some microcontrollers don't have this pin. Internally, this is actually
the JTAG TRST, which resets the JTAG TAP state machine. Because the JTAG TAP state machine
can be reset also by the TMS and the TCK, this pin is optional also for the debugger. If the micro-
controller has the JCOMP pin but it is not connected to the target debug connector, it must be set
to the non-active state in the target via a pull-up resistor. If not, then the JTAG TAP state machine
remains in reset and debugging is not possible.
Ordering code
Signal Pin
TDI 1
TDO 3
TCK 5
EVTI(EVTI0) 7
nRESET 9
Vref 11
NC 13
14-pin 2.54mm MPC5xxx/SPC5 pinout
IASAM34MPCPIN14
Pin Signal
2 GND
4 GND
6 GND
8 nPORESET
10 TMS
12 GND
14 nJCOMP
Signal Descrip-
Signal Direction
tion
Ground
Ground
Ground
Power On Re-
O
set
JTAG O
Ground
JTAG TRST (op-
O
tional)
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