Jupiter Instruments
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JI-300
15
9/9/07
4.
SCL Stretch
– During a Slave SCL stretch event, the behavior of the JI-300 can be
configured to:
a. Wait indefinitely on a SCL stretch event –
Wait Forever
selection
b. Stop if the selected SCL stretch value is exceeded.
5.
SCL/SDA Rise Time
– The maximum expected rise-time value for either the SCL or SDA
signal is entered here. I2C physical layer parameters such as pull-up resistors, bus voltage,
and bus capacitance can affect rise-time. Two methods are provided to configure the rise-
time:
a. Nominal I2C system –
Auto Select
selection
b. Specialized I2C system – Rise-time value is entered
6.
Bus not Free
– The behavior of the JI-300 can be configured to either wait indefinitely for a
“bus free” condition or stop if a “bus free” condition is not available within a specified time.
7.
Message Error
– In the event of a bus error during an I2C transmission session, the
behavior of the JI-300 can be configured to:
a. Stop all transmissions
b. Note the error and continue transmitting
4.3 Add/Edit I2C Message Window - Read
The
Add/Edit I2C Message Window - Read
is used to both edit and add new Read messages to the
Message List (Figure 9.)
Figure 9. Add/Edit I2C Message Menu - Read
