Table Of Contents - iSystem iC5000 Hardware Reference Manual

 20-pin 2.54mm ARM Cable Adapter
This adapter is used to connect the iC5000 / iC5500 / iC6000 development system to Cortex-M, Cortex-A,
Cortex-R or to the older ARM7and ARM9 based target. It connects to Debug/Trace module on one side and to
the target debug connector on the other side. It can be used for targets featuring 20-pin 2.54 pitch target debug
connector with ARM pinout.
When using this adapter to connect the development system to the target based on Cortex-M architecture,
double check that the pinout matches with the one from the target.
The following pinout is valid on the target side:
Signal Signal description
direction
I Reference voltage
O JTAG
O SWD / JTAG
I/O / O SWD / JTAG
O SWD / JTAG
I Return TCK
I SWD / JTAG
I/O System Reset
O Debug request
I Debug Acknowledge
Note: 20-pin 2.54mm ARM Cable Adapter features resettable fuses on all pins except for pin 11 and 19. These
fuses protect debug signals against overcurrent and cycle back to a conductive state after the excessive current
fades away.
The adapter connects to the target via a 20-pin 2.54 mm connector (for example Yamaichi: FAS-2001-2101-2-
0BF). A target should feature a matching part (for example WÜRTH ELEKTRONIK: 612 020 216 21).
 iSYSTEM, October 2016
Ordering code
Signal
VTref
nTRST
NC / TDI
SWDIO / TMS
SWDCLK / TCK
RTCK
SWO / TDO
nSRST
DBGRQ
DBACK
20-pin ARM pinout
IC50111-1
Pin Pin Signal Signal description
1 2 NC Not Connected
3 4 GND
5 6 GND
7 8 GND
9 10 GND
11 12 GND
13 14 GND
15 16 GND
17 18 GND
19 20 GND
Signal
direction
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
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