Thermal Solution; Power Management; Power Management States; Power Measurement Support - Intel Atom N270 User Manual

limit is the range within which the electrical circuits can be expected to meet their
specified performance requirements. Operation outside the functional limit can
degrade system performance and cause reliability problems potentially including
failure of the part and damage to the system.
The development kit is shipped with a heatsink thermal solution installed on the
processor and chipset. This thermal solution has been tested and is sufficient for
development purposes. The designer must ensure that adequate thermal management
is provided for if the system is used in other environments or enclosures.
3.3.1

Thermal Solution

The Thermal Design Power (TDP) for the processor and chipset is less than 10W. The
system can be passively cooled with a maximum 40 W dissipation.
3.4

Power Management

3.4.1

Power Management States

T able 6 lists the power management states defined for the platform.
1

Table 6. Platform Power Management States

State
G0/S0/C0
G0/S0/C1
G0/S0/C2
G0/S0/C3
G0/S0/C4
G1/S3
G1/S4
G2/S5
G3
3.4.2

Power Measurement Support

Power measurement resistors are provided on the platform to measure the power of
most subsystems. All power measurement resistors have a tolerance of 1%. The value
of these power measurement resistors are 2-mOhm by default. Power on a particular
subsystem is calculated using the following formula:
20
Description
Full on
Auto Halt
STPCLK# signal active
Deep Sleep: Clock to CPU stopped
Deeper Sleep: DPRSLP# signal active
Suspend To RAM (all switched rails are turned off)
Suspend To Disk
Soft Off
Mechanical Off
Theory of Operation
Developer's Kit User Manual