Product Overview 1-21
ACPI Processor C-States
ACPI
defines
the
power
state
of
system
processors
while
in
the
G0
working
state
as
being
either
active
(executing)
or
sleeping
(not
executing).
Processor
power
states
are
designated
C0,
C1,
C2,
C3,
…Cn.
The
C0
power
state
is
an
active
power
state
where
the
CPU
executes
instructions.
The
C1
through
Cn
power
states
are
processor
sleeping
states
where
the
processor
consumes
less
power
and
dissipates
less
heat
than
leaving
the
processor
in
the
C0
state.
While
in
a
sleeping
state,
the
processor
does
not
execute
any
instructions.
Each
processor
sleeping
state
has
a
latency
associated
with
entering
and
exiting
that
corresponds
to
the
power
savings.
In
general,
the
longer
the
entry/exit
latency,
the
greater
the
power
savings
when
in
the
state.
To
conserve
power,
OSPM
places
the
processor
into
one
of
its
supported
sleeping
states
when
idle.
While
in
the
C0
state,
ACPI
allows
the
performance
of
the
processor
to
be
altered
through
a
defined
ʺ
throttling
ʺ
process
and
through
transitions
into
multiple
performance
states
(P
‐
states).
Note:
The
7611
Atom
N270
Processor
supports
C0
and
C1
states.
Support
of
deeper
sleep
states
is
not
required
due
to
its
inherently
low
power
consumption.
Summary of Contents for RealPOS 50
Page 1: ...NCR RealPOS 50 7611 Release 1 1 User Guide B005 0000 2017 Issue C...
Page 10: ...x...
Page 48: ...1 38 Product Overview...
Page 58: ...2 10 Hardware Installation USB Keyboard w Glide Pad 29246...
Page 88: ...2 40 Hardware Installation...
Page 122: ...6 6 BIOS Updating Procedure...
Page 136: ...7 14 Solid State Drive Optimization...
Page 143: ...2x20 Customer Display Interface 9 5 CP437...
Page 144: ...9 6 2x20 Customer Display Interface CP858...
Page 145: ...2x20 Customer Display Interface 9 7 CP866...
Page 146: ...9 8 2x20 Customer Display Interface CP932...
Page 147: ...2x20 Customer Display Interface 9 9...
Page 148: ...9 10 2x20 Customer Display Interface...
Page 154: ...10 6 Touch Screen Operation...
Page 156: ...A 2 Windows 7...
