iSYSTEM, March 2017
42/66
The following pinout is valid on the target side:
Signal direction
Signal
Pin
Pin
Signal
Signal direction
I
MDO12
1
2
MDO13
I
I
MDO14
3
4
MDO15
I
I
MDO9
5
6
NC
NC
7
8
MDO8
I
I/O
RSTIN
9
10
EVTIN
O
I
TDO
11
12
VTREF
I
I
MDO10
13
14
NC
I
O
TCK
15
16
MDO7
I
O
TMS
17
18
MDO6
I
O
TDI
19
20
MDO5
I
O
NTRST
21
22
MDO4
I
I
MDO11
23
24
MDO3
I
NC
25
26
MDO2
I
NC
27
28
MDO1
I
NC
29
30
MDO0
I
NC
31
32
EVTO
I
NC
33
34
MCKO
I
NC
35
36
MSEO1
I
NC
37
38
MSEO0
I
MPC5xxx and SPC56 16-bit Nexus target pinout
Blue colored signals are required for trace.
Note: Mictor 38-pin MPC5xxx Nexus 16-bit Cable Adapter features resettable fuses on pins 9, 10, 11, 12, 15,
17, 19 and 21. These protect debug signals against overcurrent and cycle back to a conductive state after the
excessive current fades away. Signals on pins 1, 2, 3, 4, 5, 8, 13, 14, 16, 18, 20, 22, 23, 24, 26, 28, 30, 32, 34, 36
and 38 are protected via 47 ohm serial resistors.
The adapter connects to the target via a 38-pin Mictor connector (Tyco Electronics 5767055-1). A target should
feature a matching part (for example Tyco Electronics 5767081-1 in the SMT technology).
Ordering code
IAMIC38SAM50MPC
IAMIC38SAM50MPC adapter
Some targets based on Freescale Qorivva Power Architecture or PX Series Power Architecture
microcontroller(s) (e.g. MPC5675K) can also feature a 50-pin Samtec ERF8-025 connector for the Nexus debug
interface instead of a popular 38-pin Mictor connector. In this case, the IAMIC38SAM50MPC adapter is
connected to the target first and then used in conjunction with Mictor 38-pin MPC5xxx Nexus 16-bit Cable
Adapter.
In practice, it has been noticed that 50-pin Samtec target connector does not provide good mechanical stability in
one direction which as a result can also yield electrically unreliable connection. Special care must be taken when
connecting this adapter to the target Samtec connector to minimize potential connection problems. Note that no
problems have been detected or reported in conjunction with the Mictor connector.