Intel CL8064701528402 Arkusz Danych Strona 35

  • Pobierz
  • Dodaj do moich podręczników
  • Drukuj
  • Strona
    / 116
  • Spis treści
  • BOOKMARKI
  • Oceniono. / 5. Na podstawie oceny klientów
Przeglądanie stron 34
Datasheet 35
Power Management
Note:
1. If enabled, the core C-state will be C1E if all actives cores have also resolved a core C1 state or higher.
4.2.3 Requesting Low-Power Idle States
The core C-state will be C1E if all actives cores have also resolved a core C1 state or
higher.
The primary software interfaces for requesting low-power idle states are through the
MWAIT instruction with sub-state hints and the HLT instruction (for C1 and C1E).
However, software may make C-state requests using the legacy method of I/O reads
from the ACPI-defined processor clock control registers, referred to as P_LVLx. This
method of requesting C-states provides legacy support for operating systems that
initiate C-state transitions using I/O reads.
For legacy operating systems, P_LVLx I/O reads are converted within the processor to
the equivalent MWAIT C-state request. Therefore, P_LVLx reads do not directly result in
I/O reads to the system. The feature, known as I/O MWAIT redirection, must be
enabled in the BIOS.
Note: The P_LVLx I/O Monitor address needs to be set up before using the P_LVLx I/O read
interface. Each P-LVLx is mapped to the supported MWAIT(Cx) instruction as shown in
the following table.
The BIOS can write to the C-state range field of the PMG_IO_CAPTURE Model Specific
Register (MSR) to restrict the range of I/O addresses that are trapped and emulate
MWAIT like functionality. Any P_LVLx reads outside of this range do not cause an I/O
redirection to MWAIT(Cx) like request. The reads fall through like a normal I/O
instruction.
Note: When P_LVLx I/O instructions are used, MWAIT substates cannot be defined. The
MWAIT substate is always zero if I/O MWAIT redirection is used. By default, P_LVLx I/O
redirections enable the MWAIT 'break on EFLAGS.IF’ feature which triggers a wakeup
on an interrupt even if interrupts are masked by EFLAGS.IF.
Table 4-7. Coordination of Thread Power States at the Core Level
Processor Core
C-State
Thread 1
C0 C1 C3 C6 C7
Thread 0
C0
C0 C0 C0 C0 C0
C1
C0 C1
1
C1
1
C1
1
C1
1
C3
C0 C1
1
C3 C3 C3
C6
C0 C1
1
C3 C6 C6
C7
C0 C1
1
C3 C6 C7
Table 4-8. P_LVLx to MWAIT Conversion
P_LVLx MWAIT(Cx) Notes
P_LVL2 MWAIT(C3)
P_LVL3 MWAIT(C6) C6. No sub-states allowed.
P_LVL4 MWAIT(C7) C7. No sub-states allowed.
Przeglądanie stron 34
1 2 ... 30 31 32 33 34 35 36 37 38 39 40 ... 115 116

Komentarze do niniejszej Instrukcji

Brak uwag

LG LD-2157LH manuels

Manuels d'utilisation et guides de l'utilisateur pour Lave-vaisselle LG LD-2157LH.
Nous fournissons des manuels en pdf 1 LG LD-2157LH à télécharger gratuitement par type de document : Manuel de l'utilisateur






Plus de produits et de manuels pour Lave-vaisselle LG

Modèles Type de document
LD-2052SH Manuel de l'utilisateur   LG LD-2052SH Owner’s Manual, 24 pages
LD-2161SH Manuel de l'utilisateur   LG LD-2161SH Owner’s Manual, 24 pages
WZ-6808TH Manuel de l'utilisateur   LG WZ-6808TH Owner's manual, 28 pages
LDF5545ST Manuel de l'utilisateur    LG LDF5545WW,LDF5545ST Owner’s Manual [en] , 108 pages
D1453WF Manuel de l'utilisateur   LG D1453WF Owner's manual, 68 pages
LD-2050SH Manuel de l'utilisateur   LG LD-2050SH Owner’s Manual, 35 pages
LD-2060LH Manuel de l'utilisateur   LG LD-2060LH Owner’s Manual, 24 pages
D1417WFB Manuel de l'utilisateur   LG D1417WFB Owner's manual, 36 pages
LD-2050WH Manuel de l'utilisateur   LG LD-2050WH Owner’s Manual, 35 pages
LD-2131SH Manuel de l'utilisateur   LG LD-2131SH Owner’s Manual, 24 pages
D1452WF Manuel de l'utilisateur   LG D1452WF Owner’s Manual, 36 pages
39232533 Manuel de l'utilisateur     LG 39232533 Owner’s Manual, 100 pages
LDF8922ST Manuel de l'utilisateur    LG LDF8922ST Owner’s Manual, 48 pages
DW-EN105T Manuel de l'utilisateur   LG DW-EN105T Owner's manual, 32 pages
LDS5540BB Manuel de l'utilisateur     LG LDS5540BB manuel du propriétaire [en] , 80 pages
WZ-6805MF Manuel de l'utilisateur   LG WZ-6805MF Owner's manual, 28 pages
KD-C706SW Manuel de l'utilisateur   LG DC65W Owner's manual, 36 pages
KD-823NT Manuel de l'utilisateur   LG KD-823NT Owner's manual, 37 pages
LD-2261THB Manuel de l'utilisateur   LG LD-2080TH Owner’s Manual [ja] [zh] , 24 pages
LD-12AS6 Manuel de l'utilisateur   LG LD-12AT7 Owner’s Manual, 20 pages