:FUNCtion:EYE:PATTern

:FUNCtion EYE Commands

Command Syntax

:FUNCtionN:EYE:PATTern <pattern_string>

Where N identifies one of sixty four {1:64} math functions that you can create. For example, :FUNCtion2.

<pattern_string> is a 16-character string containing symbol values in the pattern.

Query Syntax

:FUNCtionN:EYE:PATTern?

Description

When qualifying a real-time eye with symbols in a pattern (see :FUNCtion:EYE:BITS), this command specifies the symbol pattern.

  • For typical NRZ (non-return-to-zero) signals, the levels are "1", "0", or "X". A valid pattern, for example, could be "1010X110X100X010".
  • For PAM-4 (four-level) signals, the levels are "3", "2", "1", "0", or "X". A valid pattern, for example, could be "0123X032X021X013".

To specify which symbol position in the pattern is symbol 0, see the :FUNCtion:EYE:CURSor command.