:FUNCtion:PATTern:KPATtern
Instrument:
DCA-X
DCA-M
Meas. mode:
Scope
Eye
Jitter
TDR
Flex Apps:
FlexDCA
FlexRT
Command Syntax
:FUNCtionN:PATTern <pattern>
Where N identifies one of sixty four {1:64} math functions that you can create. For example, :FUNCtion2.
Where argument <pattern> listed in the following table selects the indicated pattern symbol sequence.
Query Syntax
:FUNCtionN:PATTern?
Description
Specifies a known specific waveform Pattern Symbol Sequence to the equalizer function when the :FUNCtion:PATTern:MODE command has specified a known pattern instead of autodetection. The arguments used to specify the pattern is listed in the following table.
To specify the waveform's format (NRZ or PAM4), use the :FUNCtion:PATTern:FORMat command.
This command can be used with the following Signal Processing functions:
- Decision Feedback Equalizer
- Linear Feed Forward Equalizer
- Pulse Fit Filter
- TDECQ Reference Equalizer
| Selection | Format | Command ArgumentNumber of Symbols |
Description | |
|---|---|---|---|---|
| NRZ | PAM4 | |||
| One - Zero | ♦ | OZERo
|
Pattern of repeating 101010… | |
| 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) | ♦ | ♦ | PRBS7127
|
27−1 pseudo-random symbol sequence (127 symbols). |
| PRBS 7 (128 symbols) | ♦ | ♦ | EPRBs7128
|
27 pseudo-random symbol sequence (128 symbols). |
| PRBS 9 (511 symbols) | ♦ | ♦ | PRBS9511
|
29−1 pseudo-random symbol sequence (511 symbols). |
| PRBS 9 (512 symbols) | ♦ | ♦ | EPRBs9512
|
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) | ♦ | ♦ | PRBS112047
|
211−1 pseudo-random symbol sequence (2,047 symbols). |
| PRBS 11 (2048 symbols) | ♦ | ♦ | EPRBs112048
|
211 pseudo-random symbol sequence (2,048 symbols). |
| PRBS 13 (8191 symbols) | ♦ | ♦ | PRBS138191
|
213−1 pseudo-random symbol sequence (8,191 symbols). |
| PRBS 13 (8192 symbols) | ♦ | ♦ | EPRBs138192
|
213 pseudo-random symbol sequence (8,192 symbols). |
| PRBS 15 (32767 symbols) | ♦ | ♦ | PRBS1532767
|
215−1 pseudo-random symbol sequence (32,767 symbols). |
| PRBS 15 (32768 symbols) | ♦ | ♦ | EPRBs1532768
|
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). |
| Linearity (160 symbols) | ♦ | LPAM4
|
||
| JP01A (2 symbols) | ♦ | JPA
|
A signal with repeated sequence of 2 symbols that transition from level 0 to level 1. | |
| JP01B (62 symbols) | ♦ | JPB
|
A signal with 15 pairs of symbols that transition from level 0 to level 1 followed by 16 pairs of symbols that transition from level 1 to level 0 for for a total of 62 symbols. | |
| JP01C (62 symbols) | ♦ | JPC
|
A signal with 15 pairs of symbols that transition from level 0 to level 3 followed by 16 pairs of symbols that transition from level 3 to level 0 for for a total of 62 symbols. | |
| JP03A (2 symbols) | ♦ | JPA
|
A signal with repeated sequence of 2 symbols that transition from level 0 to level 3. | |
| JP03B (62 symbols) | ♦ | JPB
|
A signal with 15 pairs of symbols that transition from level 0 to level 3 followed by 16 pairs of symbols that transition from level 3 to level 0 for for a total of 62 symbols. | |
| JP03C (62 symbols) | ♦ | JPC
|
A signal with 15 pairs of symbols that transition from level 0 to level 3 followed by 16 pairs of symbols that transition from level 3 to level 0 for for a total of 62 symbols. | |
| K28.5 (20 symbols) | ♦ | K28P520
|
||
| PRBS9Q (511 symbols) | ♦ | PRBQ9
|
PRBS9Q (511 symbols). | |
| PRBS13Q (8191 symbols) | ♦ | PRBQ13
|
PRBS13Q (8,191 symbols). | |
| CEI SSPR (32762 symbols) | ♦ | SSPR
|
||
| SSPRQ (65535 symbols) | ♦ | QSSPr
|
SSPRQ (65,535 symbols). | |
Requires FlexDCA revision A.07.40 or greater.