2-5
IM 704510-01E
Explanation of Functions
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2
1
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2.4
Measurement Function (Measurement Item)
The measurement functions that can be executed vary depending on the sampling mode
as follows.
• When in time stamp mode or hardware histogram mode
• Single measurement function
Period, A-to-B time interval, or pulse width
• Dual measurement function
Period A & period B, period A & A-to-B time interval, pulse width A & A-to-B time
interval, and pulse width A & pulse width B
• When in inter-symbol interference analysis mode
• Single measurement function
Pulse width
• Dual measurement function
Pulse width A
→
A-to-B time interval and pulse width A
→
pulse width B
Period (see section 5.2 for the operating procedure)
Measures the pulse interval (time between rising edges or falling edges) of the CH A or
CH B input signal. Period measurement cannot be selected in inter-symbol interference
analysis mode. The slope for detecting the edge that determines the measurement start
or end point can be set to the rising or falling edge of the signal.
CH A/
CH B
Example when the slope is set to rising edge ( )
Measured
Measured
Measured
A-to-B Time Interval (TI) (see section 5.3 for the operating procedure)
Measures the time between the specified edge of the CH A input signal and the specified
edge of the CH B input signal. Time interval cannot be selected in inter-symbol
interference analysis mode. The slope for detecting the edge can be selected from six
combinations of the CH A and CH B slopes. For the selectable slopes, see section 5.3,
“Setting the Time Interval Measurement.”
CH A
CH B
CH A
CH B
A B
Example when the slope of
channel A and B are both rising
Example when the slope of channel A is both rising
and falling and the slope of channel B is rising
Measured
Measured
Measured
Measured
Measured
A B
Pulse Width (see section 5.4 for the operating procedure)
Measures the pulse width on the positive side (from the rising edge to the next falling
edge) of the CH A or CH B input signal or the pulse width on the negative side (from the
falling edge to the next rising edge). The polarity, which specifies which pulse width is to
be measured, can be set to positive ( ), negative ( ), or both ( ). However,
the polarity is fixed to both ( ) in inter-symbol interference analysis mode.
CH A/
CH B
Example for the positive side ( )
Measured
Measured
Measured
Measured
