Power Management States; Primary System Clocks; Intel ® 945Gm Express Chipset Development Kit Power Management States - Intel Core Duo Mobile 945GM User Manual

Theory of Operation
Table 4.

Primary System Clocks

CPU
DDR2
PCI Express* and DMI
SATA
PCI
USB
3.6

Power Management States

The evaluation board supports the following ACPI System states: S0 (Full On), S3 (Suspend to
RAM), S4 (Suspend to disk), and S5 (Soft-off), ACPI CPU states: C0 (Full On), C1 (Auto Halt),
C2 (Stop Grant), C3 (Deep Sleep), and C4 (Deeper Sleep), and ACPI Global Power States: G0
(Working), G1 (Sleeping), G2 (Soft Off), and G3 (Mechanical Off). Transition requirements are
detailed below.
Table 5 lists the power management states that have been identified for the Intel
Chipset Platform.
®
Table 5. Intel 945GM Express Chipset Development Kit Power Management States
State
G0/S0/C0
G0/S0/C2
G0/S0/C3
G0/S0/C4
G1/S3
G1/S4
G2/S5
G3
34
Clock Name
133 MHz @ 533 FSB Speed
166 MHz @ 667 FSB Speed
100 MHz @ 400 Memory Speed
133 MHz @ 533 Memory Speed
166 MHz @ 667 Memory Speed
100 MHz
100 MHz
33 MHz
48 MHz
Full On
STPCLK# signal active
Deep Sleep: DPSLP# signal active
Deeper Sleep: DPRSLP# signal active
Suspend to RAM
Suspend to Disk
Soft Off
Mechanical Off
Speed
Description
Mobile Intel
Development Kit User's Manual
®
945GM Express
®
945GM Express Chipset