Operation
Device overview
Device description
A
– 34-pin ERF8 MPC5xxx/SPC5 target pinout:
Signal
Direction
Signal
Description
Signal
Pin
Pin
Signal
Signal
Description
Signal
Direction
I
AGBT TX0_P
TX0+
1
2
Vref
Reference
Voltage
I
I
AGBT TX0_N
TX0-
3
4
TCK
JTAG
O
Ground
GND
5
6
TMS
JTAG
O
I
AGBT TX1_P*
TX1+
7
8
TDI
JTAG
O
AGBT TX1_N*
TX1-
9
10
TDO
JTAG
I
Ground
GND
11
12
nJCOMP
JTAG TRST
(optional)
O
AGBT TX2_P*
TX2+
13
14
NC
Not Connected
AGBT TX2_N*
TX2-
15
16
EVTI0
Nexus Event
Input
O (not used)
Ground
GND
17
18
EVTO0
Nexus Event
Output
I
AGBT TX3_P*
TX3+
19
20
nPORST
Power On
Reset
O
AGBT TX3_N*
TX3-
21
22
nRESET
Reset
IO
Ground
GND
23
24
GND
Ground
Not Connected
NC
25
26
AGBT CLK_P
AGBT Clock
O
Not Connected
NC
27
28
AGBT CLK_N
AGBT Clock
O
Ground
GND
29
30
GND
Ground
Not Connected
NC
31
32
NC
Not Connected
Not Connected
NC
33
34
NC
Not Connected
34-pin ERF8 MPC5x/SPC5x target pinout
Blue colored signals are Aurora trace signals.
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 microcontroller has the JCOMP pin but it is not connected to the target debug
