The Logic 2 software has the ability to decode a variety of protocols, including SPI, I2C, serial, 1-Wire, CAN, I2S/PCM, and many more! To create your own protocol analyzer, refer to Custom Protocol Analyzers.
Click the Analyzers panel button and then the + button to add a protocol analyzer. Once added, the protocol can be displayed in binary, decimal, hexadecimal, or ASCII, and information is shown above each segment of data (e.g. byte) in the viewport as well as in the Data Table.
To learn more, see the Using Protocol Analyzers section of the User Guide.