Microchip Technology SA5 Series, User Manual

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Command Line Interface
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2019 Microchip Technology Inc. DS50002938A-page 33
4.4.1 Parameter Index
The parameters provided by the device are listed in the table below.
TABLE 4-6: PARAMETER INDEX
ID Name R/W Description Units
Allowable
Range ( Note 1 )
General Status Parameters
256
Alarms
RO Bitfield of all active alarm conditions. Bitfield 32 bits
257
PpsInDetected
RO
A signal is detected on the selected
PPS source.
Boolean 0 or 1
263
Locked
RO
The unit is in a locked and stable
state.
Boolean 0 or 1
264
TimeOfDay
R/W
Time of day at the next 1PPS output
pulse. This is a configurable second
counter.
seconds
0 to
2,147,483,647
265
DisciplineLocked
RO
Disciplining servo is locked to the
selected PPS source.
Boolean 0 or 1
Configuration Parameters
512
PpsOffset
R/W
Offset of the output pulse. Default is
0 ns.
ns
±83,886,080
(10
ns step)
513
PpsWidth
R/W
Width of the output pulse. Default is
20,000
ns.
ns
0 to 83,886,080
(10
ns step)
515
CableDelay
R/W
1PPS input cable delay compensa-
tion. Default is 0
ns.
ns ±500,000,000
Disciplining Parameters
768
Disciplining
R/W
Disciplining to 1PPS input is
enabled. Default is false.
Boolean 0 or 1
769
PpsSource
R/W
Selected 1PPS input source:
0 = PPS Input 0, 1 = PPS Input 1.
Default is 0.
— 0 or 1
770
TauPps0
R/W
Disciplining time constant when
using PPS Input 0.
seconds 10 to 45,000
771
PpsQErr
R/W
Time error of the next input pulse
due to quantization. For compatibility
with GNSS receivers.
ps ±1,000,000
772
PhaseLimit
R/W
Limit of phase offset between 1PPS
input and 1PPS output before jam
syncing. Default is 1,000
ns.
ns ±1,000,000
773
JamSyncing
RO
A jam sync to remove phase offset is
in progress.
Boolean 0 or 1
774
Phase
RO
Most recent measurement of phase
offset between 1PPS input and
1PPS output.
ns ±500,000,000.0
775
LastCorrection
RO
Most recent frequency correction
due to disciplining.
x 10
-15
±20,000,000
777
TauPps1
R/W
Disciplining time constant when
using PPS Input 1.
seconds 10 to 45,000
778
PhaseMetering
R/W
Metering of 1PPS phase offset with-
out corrections is enabled. Default is
false. Cannot be enabled simultane-
ously with disciplining.
Boolean 0 or 1