Microchip Technology SA5 Series, User Manual

Page: 24 / 63

MAC-SA5X User’s Guide
DS50002938A-page 24
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2019 Microchip Technology Inc.
surement is less than the
DisciplineThresholdPps0
setting for two time con-
stants of duration (see Section 3.4.2 “Selection of Disciplining Time Constant,
“Tau”” ).
The following state diagram provides the concept behind the disciplining and
phase-metering algorithms. For more information on phase-metering, see
Section 3.4.4 “1PPS Phase Measurement Mode” .
FIGURE 3-1: PPS State Diagram.
Note: The user is allowed to adjust the
DigitalTuning
parameter while in Dis-
ciplining mode. However, this is discouraged because it could prolong and
disrupt the disciplining algorithm.
Note: Discipline settings are volatile, that is, not preserved across power cycles
unless the
store
command is used.