Agilent Technologies Infiniium 90000 Q-Series, Руководство программиста

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496 Agilent Infiniium 90000 Series Oscilloscopes Programmer's Reference
25
Measure Commands
:MEASure:CLOCk:METHod
Command
:MEASure:CLOCk:METHod
{PCIE,{DEEMphasis | TRANsition | BOTH}}
| {FC,{FC1063 | FC2125 | FC425}}
| {EXPlicit,<source>,{RISing | FALLing | BOTH}[,<multiplier>]}
| {FIXed,{AUTO | {SEMI[,<data_rate>]} | <data_rate>}}
| {FLEXR,<baud_rate>}
| {FLEXT,<baud_rate>}
The :MEASure:CLOCk:METHod command sets the clock recovery method
to:
• PCIE (PCI Express).
• FC (Fibre Channel).
• EXPlicit (Explicit Clock).
• FIXed (Constant Frequency).
• FLEXR (FlexRay Receiver).
• FLEXT (FlexRay Transmitter).
For setting phase- locked loop (PLL) clock recovery methods in terms of
the Observed Jitter Transfer Function (OJTF), see
":MEASure:CLOCk:METHod:OJTF" on page 504.
For setting phase- locked loop (PLL) clock recovery methods in terms of
the Jitter Transfer Function (JTF), see
":MEASure:CLOCk:METHod:JTF" on
page 502.
<source>
{CHANnel<N> | FUNCtion<F> | WMEMory<N>}
<N> CHANnel<N> is an integer, 1- 4.
WMEMory<N> is an integer, 1- 4.
<F> FUNCtion<F> is an integer, 1- 16.
<data_rate>
A real number for the base data rate in Hertz.
<multiplier> An integer used as the multiplication factor.
<baud_rate>
A real number used for the baud rate.
Example This example sets the explicit clock recovery method on channel 1, rising
edge, with a multiplier of 2.
N O T E
:MEASure:CLOCk commands are available when clock recovery is used by licensed
software (like the E2688A High Speed Serial software or the N5400A/N5401A EZJIT Plus
jitter analysis software).