Teledyne LeCroy SierraNet M168 User Manual Ver.1.50 - Manual (Page 84)

Teledyne LeCroy Trigger and Filter Settings in Easy Mode
82 SierraNet M168 User Manual
Figure 2.57: External Trigger Setting Dialog
External Trig Out Setting
The Analyzer can send a Low or High external signal anytime a trigger occurs. Select the
External Trig Out Setting: High Active, Low Active, or Toggle from High to Low or Low to
High once (3.3 V output).
Enter the External TrigOut pulse width.
External Trig In Setting
An external Low or High input signal can cause triggering. Select the
External Trig In Setting: High Active, Low Active, or Toggle from High to Low or Low to
High once (3.3 V output).
The nominal External Trigger voltage is 0.818 volts. Trigger In can work with 1 volt to
5 volts input voltage.
Basic Patterns
When entering values in patterns the following conventions apply:
In Binary, 'X' means one bit which is "don't care" and the value can be either 1 or 0. Below
are some examples in binary and their meanings:
"X10": The value length is 3 bits and from right to left, the first and second bits have
specific values and the third one is "don't care".
"XXXXXXX1": The value length is 8 bits and from right to left, the first bit has a specific
value and the rest are "don't care".
In Hexadecimal 'X' means 4 bits in which all four are "don't care". In hexadecimal '?'
means either one of the bits 1, 2, 3 or 4 bits is "don't care" and it is not clear which bit is