Intel Core Duo T2500 LF80539GF0412M User Manual
Product codes
LF80539GF0412M
Low Power Features
12
Datasheet
Figure 1.
Package-Level Low Power States
Figure 2.
Core Low Power States
Stop
Grant
Snoop
Normal
Stop
Grant
Deep
Sleep
STPCLK# asserted
Snoop
serviced
Snoop
occurs
occurs
Deeper
Sleep
†
Sleep
SLP# asserted
SLP# de-asserted
DPSLP# asserted
DPSLP# de-asserted
DPRSTP# de-asserted
DPRSTP# asserted
STPCLK# de-asserted
† — Deeper Sleep includes the Deeper Sleep and the Intel Enhanced Deeper Sleep state.
C2
†
C0
Stop
Grant
Core state
break
P_LVL2 or
MWAIT(C2)
C3
†
Core
state
state
break
P_LVL3 or
MWAIT(C3)
C1/
MWAIT
Core state
break
MWAIT(C1)
C1/Auto
Halt
Halt break
HLT instruction
C4
† ‡
Core State
break
P_LVL4 or
MWAIT(C4)
STPCLK#
de-asserted
STPCLK#
asserted
STPCLK#
de-asserted
STPCLK#
asserted
STPCLK#
de-asserted
STPCLK#
asserted
halt break = A20M# transition, INIT#, INTR, NMI, PREQ#, RESET#, SMI#, or APIC interrupt
core state break = (halt break OR Monitor event) AND STPCLK# high (not asserted)
† — STPCLK# assertion and de-assertion have no effect if a core is in C2, C3, or C4.
‡ — Core C4 state supports the package level Intel Enhanced Deeper sleepstate.
core state break = (halt break OR Monitor event) AND STPCLK# high (not asserted)
† — STPCLK# assertion and de-assertion have no effect if a core is in C2, C3, or C4.
‡ — Core C4 state supports the package level Intel Enhanced Deeper sleepstate.