S62F Hardware Technical Specification Rev. 1.0 06/03/28
ASUSTeK Confidential Page 45

6.2 Power management mode

6.2.1 Full-On mode

All system devices are not power managed and the system can respond to applications with maximum
performance.

6.2.2 Doze mode

The CPU clock is slo w do wn but all other devices are full on.

6.2.3 Stand by mode

A suspend state where all motherboard components are still powered -on except for the system clock
generator device. The PCI and CPU buses are driven to the inactive idle state. The system memory is
powered and refreshed by the memory bridge, an d the graphics frame buffer is powered a nd refreshed
by the graphic chip. The system provides a 32KHz clock (SUSCLK) in this suspend mode to support
refresh of these memory subsystems. Only an enabl ed “resume event” can bring the system o ut of the
stand by state. The south bridge also provides a resume timer that allows the system to resume after a
programmed time has ela psed.

6.2.4 Suspend to RAM mode (STR)

A suspend state where all motherboard components are powered-off. The CPU and PCI busses are
powered off. All devices connected to the CPU and PCI busses must either be powered-off or isolate
their bus interfaces. The system mem ory is powered and refreshed by the memory bridge, and the
graphics frame buffer is powered an d refreshed by the graphics chip. The system provide s a 32 kHz
clock (SUSCLK) in this suspend mode to support refresh of these memory sub systems. Only an enabled
“resume event” can b ring th e platform out of the suspend to RAM (STR) state.

6.2.5 Suspend to disk mode (STD)

A suspend state where the context of the entire sy stem is saved to disk, all motherboard compone nts are
powered-off, and all clocks are stopped. Any enabled “resume event”, such as Power switch or RTC, can
bring the platform out of the suspend to disk (STD) state.

6.2.6 Soft off mode (SOFF)

This is the same as suspend to disk except the context of memory is not saved. The system will resume
from Soft Off as if a hard reset had occurred.

6.2.7 Mechanical off mode (MOFF)

All power except the RTC has been removed from the system.

6.3 PMU mode transition event

The following table summarizes the entry events and wake-up events of each power management mode.

Power State Entry Event Wake up Ev ent
Doze Doze Time out Predefined Memory/IO range acce ss
Ring Indicator Keystroke
Mouse movement