Searching For I2C Data In The Lister - Agilent Technologies InfiniiVision 3000 User Manual

• Missing Ack — indicated by an "X", highlighted in red if an error.
Aliased data is highlighted in pink. When this happens, decrease the
horizontal time/div setting and run again.

Searching for I2C Data in the Lister

The oscilloscope's search capability lets you search for (and mark) certain
types of I2C data in the Lister. You can use the [Navigate] key and controls
to navigate through the marked rows.
1 With I2C selected as the serial decode mode, press [Search].
2 In the Search Menu, press the Search softkey; then, turn the Entry knob
3 Press Search; then, select from these options:
For more information on searching data, see
page 126.
For more information on using the [Navigate] key and controls, see
"Navigating the Time Base"
Agilent InfiniiVision 3000 X-Series Oscilloscopes User's Guide
to select the serial slot (Serial 1 or Serial 2) on which the I2C signal is
being decoded.
Missing Acknowledge — finds SDA data is high during any Ack SCL
•
clock bit.
Address with no Ack — finds when the acknowledge of the selected
•
address field is false. The R/W bit is ignored.
Restart — finds when another start condition occurs before a stop
•
condition.
EEPROM Data Read — finds EEPROM control byte value 1010xxx on the
•
SDA line, followed by a Read bit and an Ack bit. It then looks for the
data value and qualifier set by the Data is softkey and the Data
softkeys.
Frame(Start:Address7:Read:Ack:Data) — finds a read frame on the 17th
•
clock edge if all bits in the pattern match.
Frame(Start:Address7:Write:Ack:Data) — finds a write frame on the 17th
•
clock edge if all bits in the pattern match.
Frame(Start:Address7:Read:Ack:Data:Ack:Data2) — finds a read frame on
•
the 26th clock edge if all bits in the pattern match.
Frame(Start:Address7:Write:Ack:Data:Ack:Data2) — finds a write frame on
•
the 26th clock edge if all bits in the pattern match.
I2C/SPI Triggering and Serial Decode
"Searching Lister Data"
on page 58.
24
on
369