:TRIGger:PLENgth
Instrument:
DCA-X
Meas. mode:
Scope
Eye
Jitter
TDR
Flex Apps:
FlexDCA
FlexRT
Command Syntax
:TRIGger:PLENgth <bits>
<bits> is an int.
Query Syntax
:TRIGger:PLENgth?
Description
Enters the length of the test pattern in symbols, which is used in pattern-lock trigger mode. You must first disable automatic pattern-length detection (:TRIGger:PLENgth:AUTodetect OFF) before manually entering the pattern length. The command query returns the pattern length setting in symbols regardless of whether automatic detection is on or off.
| Selection | Format | Number of Symbols |
Description | |
|---|---|---|---|---|
| NRZ | PAM4 | |||
| 40 - PCIe Compliance | ♦ | ♦ | 40
|
|
| 62 - PAM4 Clock | ♦ | 62
|
||
| 120 - FC RPAT | ♦ | ♦ | 120
|
|
| 384 - 802.3ae TWDP segment | ♦ | ♦ | 384
|
|
| 640 PCIe Idle | ♦ | ♦ | 640
|
|
| 1280 - FDDI Jitter | ♦ | 1280
|
||
| 2640 - CJPAT | ♦ | ♦ | 2640
|
|
| 2280 - CRPAT | ♦ | ♦ | 2280
|
|
| 3360 - CRPAT (2) | ♦ | ♦ | 3360
|
|
| 3760 - CJPAT (2) | ♦ | ♦ | 3760
|
|
| 3780 - XAUI CRPAT | ♦ | ♦ | 3780
|
|
| 3820 - XAUI CJPAT | ♦ | ♦ | 3820
|
|
| 5280 - GbE Test Frame | ♦ | ♦ | 5280
|
|
| 7641 - XAUI CJPAT | ♦ | ♦ | 7641
|
|
| 9000 - JTPAT | ♦ | ♦ | 9000
|
|
| 15562 - CEI Stress | ♦ | ♦ | 15562
|
|
| 18944 - CEI Stress | ♦ | ♦ | 18944
|
|
| 20480 - SPAT | ♦ | ♦ | 20480
|
|
| 20840 - CSPAT | ♦ | ♦ | 20840
|
|
| 21760 - CJTPAT | ♦ | ♦ | 21760
|
|
| 30240 - XAUI CRPAT | ♦ | ♦ | 30240
|
|
| 33792 - 10GbE | ♦ | ♦ | 33792
|
|
| 90000 - FDDI Wander | ♦ | ♦ | 90000
|
|
| 92160 - SATA | ♦ | ♦ | 92160
|
|
| 311040 - SONET CID | ♦ | ♦ | 311040
|
|
| PRBS 7 (127 symbols) | ♦ | ♦ | 127
|
27−1 pseudo-random symbol sequence (127 symbols). |
| PRBS 7 (128 symbols) | ♦ | ♦ | 128
|
27 pseudo-random symbol sequence (128 symbols). |
| PRBS 9 (511 symbols) | ♦ | ♦ | 511
|
29−1 pseudo-random symbol sequence (511 symbols). |
| PRBS 9 (512 symbols) | ♦ | ♦ | 512
|
29 pseudo-random symbol sequence (512 symbols). |
| PRBS 10 (1023 symbols) | ♦ | ♦ | 1023
|
210−1 pseudo-random symbol sequence (1,023 symbols). |
| PRBS 10 (1024 symbols) | ♦ | ♦ | 1024
|
210 pseudo-random symbol sequence (1,024 symbols). |
| PRBS 11 (2047 symbols) | ♦ | ♦ | 2047
|
211−1 pseudo-random symbol sequence (2,047 symbols). |
| PRBS 11 (2048 symbols) | ♦ | ♦ | 2048
|
211 pseudo-random symbol sequence (2,048 symbols). |
| PRBS 13 (8191 symbols) | ♦ | ♦ | 8191
|
213−1 pseudo-random symbol sequence (8,191 symbols). |
| PRBS 13 (8192 symbols) | ♦ | ♦ | 8192
|
213 pseudo-random symbol sequence (8,192 symbols). |
| PRBS 15 (32767 symbols) | ♦ | ♦ | 32767
|
215−1 pseudo-random symbol sequence (32,767 symbols). |
| PRBS 15 (32768 symbols) | ♦ | ♦ | 32768
|
215 pseudo-random symbol sequence (32,768 symbols). |
| PRBS 16 (65535 symbols) | ♦ | ♦ | 65535
|
21−1 pseudo-random symbol sequence (65,535 symbols). |
| PRBS 16 (65536 symbols) | ♦ | ♦ | 65536
|
216 pseudo-random symbol sequence (65,536 symbols). |
| PRBS 20 (1048575 symbols) | ♦ | ♦ | 1048575
|
21−1 pseudo-random symbol sequence (1,048,575 symbols). |
| PRBS 20 (1048576 symbols) | ♦ | ♦ | 1048576
|
220 pseudo-random symbol sequence (1,048,576 symbols). |
| PRBS 23 (8388607 symbols) | ♦ | ♦ | 8388607
|
21−1 pseudo-random symbol sequence (8,388,607 symbols). |
| PRBS 23 (8388608 symbols) | ♦ | ♦ | 8388608
|
220 pseudo-random symbol sequence (8,388,608 symbols). |
| K28.5 (20 symbols) | ♦ | 20
|
||
To set or query the pattern length on simulated channels, use the :SOURce:PLENgth command.
Example Command Sequence
:TRIGger:PLENgth:AUTodetect OFF :TRIGger:PLENgth 128
Common Numerical Child Commands
This command supports the use of the following common numerical child commands: :DEFault, :MAXimum, :MINimum, and :STEP.