DescriptionResetTypeNameBit/Field
No MOSC/Crystal Connected
Provides the user control over the power drawn from the main oscillator
circuit. This bit should be set when either crystal or single-ended mode
is being used.
If the application needs MOSC, this bit should be cleared.
DescriptionValue
This bit should be cleared when a crystal or oscillator is
connected to the OSC0 and OSC1 inputs, regardless of whether
or not the MOSC is used or powered down.
0
Note: For proper clock functionality when switching to
crystal mode, software must clear this bit and set the
PWRDN bit in a single write access.
This bit should be set when a crystal or external oscillator is not
connected to the OSC0 and OSC1 inputs to reduce power
consumption.
1
1RWNOXTAL2
MOSC Failure Action
DescriptionValue
If the MOSC fails, a MOSC failure reset is generated and reboots
to the NMI handler.
0
If the MOSC fails, an interrupt is generated as indicated by the
MOSRIS bit in the RIS register.
1
Regardless of the action taken, if the MOSC fails, the oscillator source
is switched to the PIOSC automatically.
0RWMOSCIM1
Clock Validation for MOSC
DescriptionValue
The MOSC monitor circuit is disabled.0
The MOSC monitor circuit is enabled.1
0RWCVAL0
June 18, 2014274
Texas Instruments-Production Data
System Control
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