Adaptation for Arm® Debug Connector
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Target Adaptation for Arm® Debug Connector



Products


Target Connector Type

  • This is a standard 20 pin double row (two rows of 10 pins) connector (pin to pin spacing: 2.54mm/0.100").
  • If terminal strip without shroud is used, the spacing marked with "A" must be a minimum of 30.6mm/1.2".
  • Examples with housing: Samtec HTST-110-01-L-D (through-hole); Samtec HTST-110-01-L-DV (surface mount).
  • Examples without housing: Samtec TSW-110-23-L-D; Berg 67996-120H.

Interface Standard

The Debug Cable supports different interface standards:

1JTAGIEEE 1149.1alternate pin function: TMS, TCK
3Compact JTAGIEEE 1149.7alternate pin function: TMSC, TCKC
2Serial Wire DebugCoreSight Arm®alternate pin function: SWDIO, SWCLK

The interface type and corresponding pin function can be selected in the debuggers GUI.

Pinout


Signal

Pin

 Pin

Signal

    
VREF-DEBUG12VSUPPLY (not used)
TRST-34GND
TDI56GND
TMS|TMSC|SWDIO78GND
TCK|TCKC|SWCLK910GND
RTCK1112GND
TDO|-|SWO1314GND
RESET-1516GND
DBGRQ1718GND
DBGACK1920GND
    
Target connector, top-view


Smaller Footprint

For board designs requiring a smaller debug connector footprint we recommend to use a 20-pin or 10-pin MIPI connector via one of the following converters:

LA-2729 Converter IDC20A to MIPI-10/20T (Recommended, since easy and robust)

LA-3770 Converter IDC20A to MIPI-10/20D/34 (Use only if you need legacy debug signals RTCK, DBGRQ, DBGACK, TRST)

Learn more about the differences between the two converters in the Lauterbach knowledge base.
 

Converter


Picture
Order No.
Probe
LA-2729
Converter IDC20A to MIPI-10/20T

Adaptation
LA-2770
Converter IDC20A to MIPI-34 PowerTrace Serial

Adaptation
LA-3722
Converter IDC20A to Mictor-38

Adaptation
LA-3770
Converter IDC20A to MIPI-10/20D/34

Adaptation
LA-3780
Converter IDC20A to TI-14/TI-20-Compact

Adaptation
LA-3809
Converter Mictor-38/IDC20A to MIPI-20T

Adaptation
LA-3818
Converter 2xMictor38/IDC20A to MIPI-60

Adaptation
LA-3833
Conv. IDC20A/Samtec40 HSSTP to Samtec40 HSSTP

Adaptation
LA-3863
Converter IDC20A to ALTERA-10/RISCV-10

Adaptation
LA-3880
Conv. ICD20A, MIPI-34, MIPI-60 to 2xMictor-38
on request, please contact Lauterbach
LA-3881
Converter IDC20A to XILINX-14

Adaptation
LA-7748
Converter IDC20A to TI-14

Adaptation




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Last generated/modified: 11-Mar-2026