iSystem iC5000 Hardware Reference Manual page 41

The following pinout is valid on the target side:
Signal direction
I
I
I
I/O
I
I
O
O
O
O
I
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
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.
 iSYSTEM, October 2016
Signal Pin
MDO12 1
MDO14 3
MDO9 5
NC 7
RSTIN 9
TDO 11
MDO10 13
TCK 15
TMS 17
TDI 19
NTRST 21
MDO11 23
NC 25
NC 27
NC 29
NC 31
NC 33
NC 35
NC 37
MPC5xxx and SPC56 16-bit Nexus target pinout
IAMIC38SAM50MPC adapter
Pin Signal
2 MDO13
4 MDO15
6 NC
8 MDO8
10 EVTIN
12 VTREF
14 NC
16 MDO7
18 MDO6
20 MDO5
22 MDO4
24 MDO3
26 MDO2
28 MDO1
30 MDO0
32 EVTO
34 MCKO
36 MSEO1
38 MSEO0
IAMIC38SAM50MPC
Signal direction
I
I
I
O
I
I
I
I
I
I
I
I
I
I
I
I
I
I
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