CoreSight 20 pinouts

The following table shows the CoreSight 20 pinout as used on the target board:

Table 14. CoreSight 20 interface pinout table

PinSignal nameI/O diagramVoltage domain
1VTREFGA
2TMS/SWDIOB/CA
3GNDHNA
4TCK/SWCLKBA
5GNDHNA
6TDO/SWOAA
7KEY (NC)NANA
8TDIBA
9GNDHNA
10nSRSTEA
11NCINA
12RTCK/TRACECLKAA
13NCINA
14SWO/TraceD0 EA
15GNDHNA
16nTRST/TraceD1 EA
17GNDHNA
18DBGRQ/TraceD2 AA
19GNDHNA
20DBGACK /TraceD3 AA

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