Data Sheet

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If you are working within a single frame the VSM Studio tab will come to the
foreground when the simulation is paused as it is assumed you are interested in the
source code pending execution. The analyser will however remain on top. If you
want to see both the schematic and the source at the same time you can either use
Active popups or drag the VSM Studio tab onto some free space to separate it.
The syntax used in the protocol analyser is standard and should be familiar. You can expand
any sequence via the '+' box on the left hand side. The peripheral (MCP9800) has a standard
address of 0x90 so we can see from the read requests that the sequence is start (S), followed
by read request 0x91 (Read request, bit 0 set), followed by 0x1B (data) and so on. As you
would expect the data received (0x1B) is 27 decimal corresponding to the temperature currently
displayed on the peripheral.
You can experiment with this by running the simulation, changing the temperature on the
MCP9800 schematic part and then pausing again to check the display output on the I2C
debugger.