AD-130GE
23
Start Point
End Point
Length
Start Point
End Point
Length
7.5. Configuring the GPIO module
7.5.1 Input /Output Signal Selector
GPIO is used to determine which signal is assigned which terminal. For the details, please refer
to Register Map, Digital I/O, Acquisition and Trigger Control and Pulse Generator.
Line Selector
Line Source
7.5.2 Pulse generators (20 bit x 4)
There are 4 pulse generators (designated 0 through 1) that can be used to create various timing
scenarios by programming start point, endpoint, length and repeats.
Fig.18 Pulse waveform
Example of the setting
The following drawing is an example of settings.
FVAL is used for the input of a pulse generator 0 and the clock, after the rising edge of FVAL,
counts 100 clocks for the high period of the pulse and 102 clocks for the pulse length.
As 2400 is for Clock Pre-scaler, the output of the 12 bit counter is 25 KHz, which is 40µs.
