User Manual

Chapter 7 Protocol Decoding RIGOL
DS1000Z-E User Guide 7-11
I2C Decoding
I2C serial bus consists of the clock line (SCLK) and the data line (SDA).
Host
Device
SCLK
SDA
A2
A1
A0
Vcc
SCLK
SDA
Figure 7-5 I2C Serial Bus
Press MATH Decode1  Decoder to select "I2C" and open the I2C decoding
function menu.
1. Press Decode to turn on or off the decoding function.
2. CLK Setting
Press CLK to select any channel (CH1 or CH2) as the clock channel.
3. SDA Setting
Press DATA to select any channel (CH1 or CH2) as the data channel.
Note: Press Exchange to switch the current signal sources of the clock channel
and data channel.
4. Copy Trigger
Press CopyTrig to copy the protocol trigger settings from the trigger system
and set the corresponding decoding parameters automatically. During I2C
decoding, this function is valid only when the trigger type is I2C trigger. You can
copy the settings of clock and data channels.
5. Analog Channel Threshold Setting
For more details, please refer to the introduction in "Analog Channel
Threshold Setting" of parallel decoding.
6. Display-related Setting
For more details, please refer to the introduction in "Display-related Setting"
of parallel decoding.