I2C, SPI and UART all have special-use cases and the Teledyne LeCroy trigger and decode solutions address these cases. The I2C trigger can be configured for 7 or 10-bit addressing with or without inclusion of the R/W bit. The SPI trigger can be configured for a range of CPOL and CPHA settings as well as the Simplified SPI protocol. With the UART trigger 8 and 9-bit (8+1) formats are supported. Decode is intuitive, with advanced software algorithms deconstructing the waveform into protocol information, then overlaying the decoded data on the waveform. Decode information condenses or expands depending on the timebase/zoom ratio setting, so understanding messages is easy. Various sections of the protocol are colour-coded to make it easy to understand, especially for users new to I2C, SPI UART, and RS-232 serial data. The decode operation is fast - even with long acquisitions. The user can choose to decode into Hex, Binary, or ASCII formats.

I2C, SPI, UART and RS-232 trigger and decode
Colour-coded decode overlaid on the waveform is intuitive and easy to read
Powerful and flexible conditional DATA triggering
Hex, Binary or ASCII decoding
Decode information expands as the timebase is adjusted or zoomed
Convenient table display with quick "zoom to message" capability
Quick search capability for specific messages
Set an ACK condition (ACK,NO ACK, Don’t Care) in all frame trigger setups (I2C)
Decode does not require clock trace to be displayed (I2C, SPI)
Supports UART address (9-bit) Byte triggering
Supports trigger and decode of user-defined proprietary protocols based on a UART spine