SIGNALCORE SC5511A Operating & Programming Manual page 20

Table 10. Register 0x05 LIST_MODE_CONFIG (1 Byte)
Bit Type
[0] WO SSS Mode
[1] WO Sweep Direction
[2] WO Triangular Waveform
[3] WO Soft/Hardware Trigger
[4] WO Step on Trigger
SC5511A User Manual
Name Width
Rev 1.7.0
1 0 = List mode. Device gets its frequency points
from the list buffer uploaded via the
LIST_BUFFER_WRITE register (0x0D).
1 = Sweep mode. The device computes the
frequency points using the Start, Stop, and Step
frequencies.
1 0 = Forward. In the forward direction, the sweeps
starts from the lowest start frequency or starts at
the beginning of the list buffer.
1 = Reverse. In the reverse direction, the sweep
starts with the stop frequency and steps down
toward the start frequency or starts at the end
and steps toward the beginning of the buffer.
1 0 = Sawtooth waveform. Frequency returns to the
beginning frequency upon reaching the end of a
sweep cycle.
1 = Triangular waveform. Frequency reverses
direction at the end of the list and steps back
towards the beginning to complete a cycle.
1 0 = Software trigger. Software trigger can only be
used to start and stop a sweep/list cycle. It does
not work for step-on-trigger mode.
1 = Hardware trigger. A high-to-low (↓) transition
on the TRIGIN pin will trigger the device. It can be
used for both start/stop or step-on-trigger
functions.
1 0 = Start/Stop behavior. The sweep starts and
continues to step through the list for the number
of cycles set, dwelling at each step frequency for
a period set by the LIST_DWELL_TIME register.
The sweep/list will end on a consecutive trigger.
1 = Step-on-trigger. This is only available if
hardware triggering is selected. The device will
step to the next frequency on a trigger. Upon
completion of the number of cycles (set by the
LIST_CYCLE_COUNT register), the device will exit
from the stepping state and stop. Further
triggering will set the device back into the
stepping state. To exit the stepping state and stop
before reaching the end of a cycle, a software
trigger must to be sent or a change in the RF
mode to single fixed tone needs to be made.
Description
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