System States and Power States

Under ACPI, the operating system directs all system and device power state transitions. The operating system puts devices in and out of low-power states based on user preferences and knowledge of how devices are being used by applications. Devices that are not being used can be turned off. The operating system uses information from applications and user settings to put the system as a whole into a low-power state.

Table 10 lists the power states supported by the VIG390S motherboard along with the associated system power targets. See the ACPI specification for a complete description of the various system and power states.

Table 10: Power States and Targeted System Power

Global States

Sleeping States

Processor

Device States

Targeted System

 

 

 

States

 

Power

G0 – working

S0

– working

C0 – working

D0 – working state

Full Power > 30W

state

 

 

 

 

 

G1 – sleeping

S1

– Processor

C1 – stop grant

D1, D2, D3 – device

5W < power <

state

stopped

 

specification specific

52.5W

G1 – sleeping

S3

– Suspend to

No power

D3 – no power except

Power < 5W

state

RAM.

 

for wake-up logic

 

G1 – Sleeping

S4

– Suspended

No power

D3 – no power except

Power < 5W

state

to disk.

 

for wake-up logic

 

G2/S5

S5

– Soft off.

No power

D3 – no power except

Power < 5W

 

saved

 

for wake-up logic

 

G3 –

No power to the

No power

D3 – no power for

No power to the

Mechanical off

system

 

wake-up logic, except

system. Service

AC power is

 

 

 

when provided by

can be performed

disconnected

 

 

 

battery or external

safely.

for the

 

 

 

source

 

computer

 

 

 

 

 

Wake-up Devices and Events

Table 11 lists the devices or specific events that can wake the computer from specific states.

Table 11: Wake-up Devices and Events

These devices/events can wake up the computer…

…from this state

LAN

S1, S3, S4, S5

Modem (Back panel Serial Port A)

S1, S3

PME# signal

S1, S3, S4, S5

Power switch

S1, S3, S4, S5

PS/2 devices

S1, S3

RTC alarm

S1, S3, S4, S5

USB

S1, S3

Note: The use of these wake-up events from an ACPI state requires an operating system that provides full ACPI support. In addition, software, drivers, and peripherals must fully support ACPI wake events.

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Intel Vig390s manual System States and Power States, Wake-up Devices and Events

Vig390s specifications

The Intel Vig390s is a sophisticated system-on-chip (SoC) designed for a variety of applications, particularly in the fields of IoT (Internet of Things), industrial automation, and embedded systems. As a versatile processor, it combines high performance with energy efficiency, making it suitable for resource-constrained environments.

One of the key features of the Intel Vig390s is its multi-core architecture, which facilitates parallel processing capabilities. This design allows the chip to handle multiple tasks simultaneously, optimizing performance in data-intensive applications. The chip typically incorporates up to four custom cores that operate at impressive clock speeds, ensuring swift processing in complex and demanding workloads.

In terms of graphics capabilities, the Vig390s boasts integrated Intel HD Graphics, providing enhanced visual performance without the need for additional discrete graphics units. This feature is particularly beneficial for applications requiring graphical interfaces, such as smart displays and human-machine interfaces (HMIs), where visual clarity and responsiveness are crucial.

Another notable characteristic of the Vig390s is its support for various connectivity options. The SoC includes integrated networking capabilities, such as Ethernet and Wi-Fi support, enabling seamless communication between devices in an IoT ecosystem. This connectivity enhances the chip's utility in smart factory environments, where real-time data exchange is essential for operational efficiency.

Additionally, the Intel Vig390s is built on advanced manufacturing processes, which not only improves performance but also reduces power consumption. This efficiency is vital for embedded systems that often operate in remote or energy-sensitive environments. The chip has integrated power management features that dynamically adjust performance levels based on workload, thereby extending battery life in portable applications.

The architecture of the Vig390s is also equipped with robust security features, including hardware-based security measures that help protect sensitive data. This capability is increasingly important in an era where cybersecurity threats are prevalent.

With scalability in mind, Intel designed the Vig390s to support a range of operating systems, making it flexible for developers looking to deploy applications across various platforms. Its compatibility with major IoT frameworks enhances its appeal in diverse use cases.

In summary, the Intel Vig390s distinguishes itself with its powerful multi-core processing, integrated graphics, extensive connectivity options, energy efficiency, and security features, making it an ideal choice for modern IoT and embedded applications.