ETM-M33 has the following main interfaces:
- Processor interface
- This block connects to the ETM-M33 interface. It tracks
the execution information from the processor, decodes the control signals, and passes on
the information to the internal interfaces.
- There is one ATB interface which is the instruction ATB interface. This reads single bytes of packet information from the instruction FIFO and sends them over the instruction ATB interface.
- APB interface
- This block implements the interface to the APB that provides access to the programmable registers.
- Production test
- This interface contains the scan enable signal used in production
testing of ETM-M33.