15.1.6. Other connections to the core
Table 15.9 shows
the other signals that are connected to the core.
Table 15.9. Other connections
| Signal name | Direction | Description |
|---|
| EVNTBUS[19:0] | Output | Gives the status of the performance monitoring
events. See c15, Performance Monitor Control Register
(PMNC). |
| ETMEXTOUT[1:0] | Input | Provides feedback to the core of the EVNTBUS signals after being passed
through ETM triggering facilities and comparators. This enables
the performance monitoring facilities provide by ARM1136JF-S processors
to be conditioned in the same way as ETM events. For more details
see c15, Performance Monitor Control Register
(PMNC) and the ETM11RV
Technical Reference Manual. |
| ETMPWRUP | Input | Indicates that the ETM is active. When LOW
the trace interface must be clock gated to conserve power. |
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