ARM Cortex Debug Interface Overview
The TC2050-IDC-050 provides seamless connectivity between ARM Cortex microcontrollers and debugging tools using the industry-standard 10-pin debug interface. This cable eliminates the need for permanent debug connectors on production boards whilst maintaining full debugging capabilities during development.Debug Protocol Compatibility
This cable supports both JTAG and SWD debugging protocols. JTAG (Joint Test Action Group) uses 4 signal pins for comprehensive debugging including boundary scan testing, whilst SWD (Serial Wire Debug) requires only 2 pins for efficient debugging of ARM Cortex processors.| Protocol | Pins Used | Key Signals | Advantages |
|---|---|---|---|
| JTAG | 4 | TCK, TMS, TDI, TDO | Full boundary scan, multi-device chain |
| SWD | 2 | SWDCLK, SWDIO | Fewer pins, ARM optimised, faster |
Wiring Quick-Start
The TC2050 footprint requires precise PCB layout for reliable connection. Contact pads must be 0.079" diameter with 0.100" spacing in a 2x5 configuration. Two 0.079" alignment holes are positioned to ensure correct cable orientation.ULINK2 Debugger Integration
The cable's 0.050" pitch connector directly mates with ULINK2's Samtec FTSH-105-01 header. This configuration provides efficient debugging for ARM7, ARM9, and Cortex-M microcontrollers with full MDK-ARM integration.ARM ULINK2 debugger with FTSH-105 connector
PCB Design Considerations
The TC2050 footprint requires careful PCB design attention. Keep-out areas around the connector ensure finger access for cable insertion. The footprint works on both 2-layer and multilayer boards with appropriate via placement. Design Tip: Position the TC2050 footprint near your microcontroller but allow 0.5" clearance on sides for finger access during cable insertion and removal.