Agilent Technologies InfiniiVision 5000 Series Guide de l'utilisateur télécharger pdf (Page 114)

114 5000 Series Oscilloscope User’s Guide

3 Triggering the Oscilloscope

Data needs to be stable during the whole high clock cycle or

it will be interpreted as a start or stop condition (data

transitioning while the clock is high).

6 Return to the previous menu; then, press the Trigger: softkey

to select one of the following I

C trigger conditions:

• Start Condition — The oscilloscope triggers when SDA data

transitions from high to low while the SCL clock is high.

For triggering purposes (including frame triggers), a

restart is treated as a start condition.

• Stop Condition — The oscilloscope triggers when data (SDA)

transitions from low to high while the clock (SCL) is high.

• Missing Acknowledge — The oscilloscope triggers when SDA

data is high during any Ack SCL clock bit.

• Address with no Ack — The oscilloscope triggers when the

acknowledge of the selected address field is false. The R/W

bit is ignored.

• Restart — The oscilloscope triggers when another start

condition occurs before a stop condition.

SDA

SCL

Address

Ack Data Ack

Stop

Condition

Start

Condition

1 2 ... 109 110 111 112 113 114 115 116 117 118 119 ... 295 296

Pas de commentaire

Agilent Technologies InfiniiVision 5000 Series Guide de l'utilisateur Page 114