| Description | This object indicates the manual switching flag.
The 'true' value indicates the currently selected
T4 clock source is a result of the manual switching.
The switch allows a user to select a
synchronization source assuming it is enabled,
not locked out, not in signal fail condition,
and has a QL better than DNU in QL-enabled mode.
A clock source is enabled when it occupies a row in
cnsT4ClockSourceTable. A clock source is not locked
out when cnsT4ClkSrcLockout contains the value 'false'.
A clock source is not in signal failure condition when
cnsT4ClkSrcSignalFailure contains the value 'false'.
The QL is identified in cnsT4ClkSrcQualityLevel.
In QL-enabled mode, a manual switch
can be performed only to a source which has the
highest available QL. |