iSystem iC5000 - 50-pin ERF8 MPC5 xxx Nexus Adapter Pinout; 50-pin Samtec ERF8 MPC5 xxx Nexus Target Pinout; Trace Signals

 iSYSTEM, October 2016 32/69
 20-pin 1.27 x 2.54 mm Compact TI-20 Cable Adapter
Ordering code
IC50119
This adapter is typically used to connect the iC5000 / iC5500 / iC6000 development system to Texas Instruments
targets, which can feature Texas Instruments proprietary target debug connector. It connects to Debug/Trace
module on the debug/test tool side and to the target debug connector on the other side. It can be used for targets
featuring 20-pin 1.27 x 2.54 mm target debug connector with Compact TI-20 pinout.
The following pinout is valid on the target side:
Signal
direction
Signal description
Signal
Pin
Pin
Signal
Signal description
Signal
direction
O
Standard JTAG
TMS
1
2
nTRST
Standard JTAG
O
O
Standard JTAG
TDI
3
4
GND
Ground
I
Reference voltage
VTref
5
6
KEY
Not connected
I
Standard JTAG
TDO
7
8
GND
Ground
I
Return TCK
RTCK
9
10
GND
Ground
O
Standard JTAG
TCK
11
12
GND
Ground
I
Emulation pins
EMU0
13
14
EMU1
Emulation pins
I
I/O
System Reset
nSRST
15
16
GND
Ground
I
Emulation pins
EMU2
17
18
EMU3
Emulation pins
I
I
Emulation pins
EMU4
19
20
GND
Ground
20-pin Compact TI-20 pinout
Jumpers J1 and J2
Jumpers J1 and J2 selects whether EMU0 (J1) or EMU1 (J2) is tied to pull-up (position 1-2) or directly to the
GND (position 2-3).
EMU signals’ functions may vary from board to board. See target board manual and schematics for more
information on how to set the jumpers.
Note: 20-pin 1.27 x 2.54 mm Compact TI-20 Cable Adapter features resettable fuses on all pins except for pin 9,
13, 14, 17-19. These fuses protect debug signals against overcurrent and cycle back to a conductive state after
the excessive current fades away. Signals on pins 13, 14, 17-19 are protected via 100 ohm serial resistors.
The adapter connects to the target via a 20-pin 1.27 x 2.54 mm connector (for example Sullins Connector
Solutions: SFH41-PPPB-D10-ID-BK). A target should feature a matching part (for example SAMTEC: FTR-
110-51-G-D-P).