Intel G1620T CM8063701448300 Manual Do Utilizador
Códigos do produto
CM8063701448300
Power Management
62
Datasheet
shows the transitions rules among the various states. Note that transitions
among the various states may appear to temporarily transition through intermediate
states. These intermediate transitions and states are not listed in the table.
states. These intermediate transitions and states are not listed in the table.
G1/S3
Suspend-To-RAM(STR): The system context is maintained in system DRAM, but
power is shut to non-critical circuits. Memory is retained, and refreshes continue. All
external clocks are shut off; RTC clock and internal ring oscillator clocks are still
toggling.
G1/S4
Suspend-To-Disk (STD): The context of the system is maintained on the disk. All of
the power is shut down except power for the logic to resume.
The S4 and S5 states are treated the same.
The S4 and S5 states are treated the same.
G2/S5
Soft-Off: System context is not maintained. All of the power is shut down except
power for the logic to restart. A full boot is required to restart. A full boot is required
when waking.
The S4 and S5 states are treated the same.
The S4 and S5 states are treated the same.
G3
Mechanical OFF. System content is not maintained. All power shutdown except for
the RTC. No “Wake” events are possible, because the system does not have any
power. This state occurs if the user removes the batteries, turns off a mechanical
switch, or if the system power supply is at a level that is insufficient to power the
“waking” logic. When system power returns, transition will depend on the state just
prior to the entry to G3.
Table 41. General Power States for System (Sheet 2 of 2)
States/Sub-states
Legacy Name / Description
Table 42. ACPI PM State Transition Rules
Present State
Transition Trigger
Next State
G0/S0/C0
IA Code MWAIT or LVL Rd
C0/S0/Cx
PM1_CNT.SLP_EN bit set
G1/Sx or G2/S5 state (specified by
PM1_CNT.SLP_TYP)
Power Button Override
G2/S5
Mechanical Off/Power Failure
G3
G0/S0/Cx
Cx break events which include: CPU snoop,
MSI, Legacy Interrupt, AONT timer
G0/S0/C0
Power Button Override
G2/S5
System Power Failure
G3
G1/S3,G1/S4
Any Enabled Wake Event
G0/S0/C0
Power button Override
G2/S5
Resume Well Power Failure
G3
G2/S5
Any Enabled Wake Event
G0/S0/C0
Resume Well Power Failure
G3
G3
Power Returns
Option to go to S0/C0 (reboot) or G2/S5
(stay off until power button pressed or
other enabled wake event) or G1/S4 (if
system state was S4 prior to the power
failure). Some wake events are
preserved through a power failure.