iSystem iC5000 - 50-pin ERF8 MPC5 xxx Nexus 16-bit Debug Adapter Details; Target Side Pinout and Protection; Trace Signals

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Typically there is no need to use the ‘Force periodic Nexus SYNC’ functionality unless a
specific application code is traced, which does not generate messages containing
absolute program counter information. As long as the user has no problems with the
trace use, it is recommended to keep the jumper J2 disconnected.
The following pinout is valid on the target side:
Signal direction
Signal
Pin
Pin
Signal
Signal direction
I
MSEO0
1
2
VTREF
I
MSEO1
3
4
TCK
O
GND
5
6
TMS
O
I
MDO0
7
8
TDI
O
I
MDO1
9
10
TDO
I
GND
11
12
nTRST
O
I
MDO2
13
14
NC
I
MDO3
15
16
EVTI
O
GND
17
18
EVTO
I
I
MCKO
19
20
nSRST
O
I
MDO4
21
22
NC
O
GND
23
24
GND
I
MDO5
25
26
NC
I
MDO6
27
28
NC
GND
29
30
GND
I
MDO7
31
32
NC
I
MDO8
33
34
NC
GND
35
36
GND
I
MDO9
37
38
NC
I
MDO10
39
40
NC
GND
41
42
GND
I
MDO11
43
44
MDO13
I
I
MDO12
45
46
MDO14
I
GND
47
48
GND
I
MDO15
49
50
NC
50-pin Samtec ERF8 MPC5xxx Nexus target pinout
Blue colored signals are trace signals.
When connecting the BlueBox to the new embedded target for the first time, double
check that the debug adapter pinout matches with the target debug connector. Note
that a mismatch can result in a hardware failure.
50-pin ERF8 MPC5xxx Nexus 16-bit Debug Adapter features resettable fuses on pins 2, 4, 6, 8,
10, 12, 16 and 20. These protect debug signals against overcurrent and cycle back to a
conductive state after the excessive current fades away. All other signals are protected via the
47 ohm serial resistor.
The debug adapter connects to the target via a 50-pin Samtec connector, Samtec ERM8-025-
01-L-D-EM2. A target should feature a matching part, for example Samtec ERF8-025-05.0-L-DV
in the SMT technology.