ARM AMBA NIC-301 Especificações descarregar pdf (Página 153)

Signal Descriptions

ID062813 Non-Confidential

A.4.2 Trace connectors

The test chip supports up to 32-bit trace output from the CoreSight Trace Port Interface Unit

(TPIU) and enables connection of a compatible trace unit. See Figure 2-16 on page 2-41. Two

MICTOR trace connectors, labeled Trace Dual and Trace Single, are connected to the TPIU.

The two connectors, when used together, support 32-bit trace, and the connector labeled Trace

Single, when used alone, supports 16-bit trace.

Note

• DSTREAM is an example of a trace module that you can use.

• All the trace and JTAG signals operate at 1.8V.

• The trace connector cannot supply power to a trace unit.

• The interface does not support the TRACE_CTL signal. This is always driven LOW.

Figure A-4 shows the MICTOR connector, part number AMP 2-5767004-2.

Figure A-4 Trace Connector, J4 and J5

Table A-2 shows the trace pin mapping for each Trace Dual signal.

238

137

Table A-2 Trace Single connector, J4, signal list

Pin Signal Pin Signal

1 Not connected 2 Not connected

3 Not connected 4 Not connected

5 GND 6 TRACE_CLKA

7 TRACEDBGRQ 8 TRACE_DBGACK

9 nSRST 10 TRACE_EXTTRIGX

11 TDO 12 VTREFA (1V8)

13 RTCK 14 VSUPPYLYA (1V8)

15 TCK 16 TRACE_DATA7

17 TMS 18 TRACE_DATA6

19 TDI 20 TRACE_DATA5

21 nTRST 22 TRACE_DATA4

23 TRACE_DATA15 24 TRACE_DATA3

25 TRACE_DATA14 26 TRACE_DATA2

27 TRACE_DATA13 28 TRACE_DATA1

29 TRACE_DATA12 30 GND

1 2 ... 148 149 150 151 152 153 154 155 156 157 158 ... 177 178

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