GW Instek GDS-2000A series Quick start guide for Logic analyzer option - Manual (Page 11)

6. Press Event Table to view or save the decoded data
in a list.
7. Press Edit Labels to create an on-screen label for
the bus.
I 2 C Bus
The I2C bus is a 2 wire interface with a serial data line
(SDA) and serial clock line (SCLK). The I2C protocol
supports 7 or 10 bit addressing and multiple masters.
1. Press the Bus soft-key and select I 2 C.
2. Press Define Inputs to select the SCLK and SDA
inputs.
3. Press Thresholds to set the thresholds.
 There are 5 pre-set threshold levels in
addition to the User-defined threshold
setting (TTL, 5.0V CMOS, 3.3V CMOS,
2.5V CMOS, ECL, PECL, 0V).
4. Press the Include R/W in Address soft-key to set
whether a read/write bit is included in the
address.
5. Press Bus Display to configure how the data is
displayed, either hex or binary.
6. Press Event Table to view or save the decoded data
in a list.
 The Data Detail option allows you to also
view the data at a particular address. This is
only for I
2 C buses.
7. Press Edit Labels to create an on-screen label for
the bus.