Teledyne LeCroy ArbStudio - Manual (Page 102)

ArbStudio
94 922244-00 Rev A
A
CQUISITION
W
RITE
M
EMORY
M
ODE
When the Digital Pattern Generator works as a sampler, it stores the data it
reads from the input pins to internal memory. This memory can be written
in One Shot or Cyclic modes.

One Shot - The data is written until the end of the memory is
reached.

Cyclic - The memory is written in a cyclic mode and data can be
overwritten when the end of memory is reached.
S
AMPLING
S
ETTINGS
The Sampling Rate Prescaler (SRP) may assume values ranging from 1
(maximum frequency) up to 16777216 (minimum frequency), by multiples
of 2.
The Real Sampling Rate = Sampling Rate / SRP.
For example setting SRP = 20 with a sampling rate of 125 MS/s, the real
sampling rate becomes 6.25MS/s and it is possible to generate digital
waveforms with total length of 167.77216 ms with a time resolution of
160 ns.
Pattern Settings - The Trigger Event Tab
The Trigger Event tab allows setting a trigger condition on Ch (17..0) and on
Vector(16) (Ext Trig) to generate a trigger event similar to a logic analyzer.
M
ASTER
T
RIGGER
E
VENT
(S
LAVE
M
ODE
O
NLY
)
On a slave device, Ch17 can be used as an input to evaluate the trigger
condition (Master Trigger Event disabled) or as a Master Trigger Event.
The device set as the master transmits the Trigger Event by the Expansion
Bus to all slave devices.
If you enable the Master Trigger Event on a slave device, it can also trigger
on a master trigger event condition.