Rigol DS70000-EMBDA - Built-in Serial Bus Trigger and Analysis Option

Built-in serial bus trigger and analysis (RS232/UART, I2C, and SPI)

RS232 trigger (optional)
The RS232 bus is a serial communication mode used in data transmission between PCs or between a PC and a terminal. 

In the RS232 serial protocol, a character is transmitted as a data frame. The frame includes 1 start bit, 5 to 8 data bits, 1 control bit, and 1 to 2 stop bits. 

The DS70000 series oscilloscope triggers when the start frame, error frame, check error, or specified RS232 signal data are detected.

I2C trigger (optional)
I2C is a 2-wire serial bus used to connect the microcontroller and its device. It is a widely used bus standard in the field of microelectronic communication control.

The I2C serial bus consists of SCL and SDA. Its transmission rate is determined by SCL and its transmission data is determined by SDA. The instrument series triggers in case of start, restart, stop, missing acknowledgment, specific device address, or data value conditions.

Additionally, it can also trigger simultaneously on the specific device address and data values.

SPI trigger (optional)
In SPI triggering, once the CS or timing condition is met, the oscilloscope triggers when the specified data is found. When using the SPI trigger, you must specify the clock sources CLK and the data sources MISO.