NHE6300ESB S L7XJ Intel, NHE6300ESB S L7XJ Datasheet - Page 190

• Manufacturer Part Number: NHE6300ESB S L7XJ
• Manufacturer: Intel

Specifications of NHE6300ESB S L7XJ

• Lead Free Status / RoHS Status: Compliant

5.15.4.1 Power State Mappings
Figure 17. SATA Power States
Intel
DS
190
®
6300ESB I/O Controller Hub
The following PCI power management states for devices are supported by the Intel
6300ESB ICH SATA Controller:
D0 – working
D3 – very deep sleep. This state is split into two sub-states, D3
PCI configuration accesses) and D3
accesses). These two sub-states are considered the same, where D3
D3
is in an S1-S5 state.
SATA devices may also have multiple power states. From parallel ATA, three device
states are supported through ACPI. They are:
D0 – Device is working and instantly available.
D1 – device enters when it receives a STANDBY IMMEDIATE command. Exit latency
from this state is in seconds
D3 – from the SATA device’s perspective, no different than a D1 state, in that it is
entered through the STANDBY IMMEDIATE command. However, an ACPI method is also
called which will reset the device and then cut its power.
Each of these device states are subsets of the host controller’s D0 state.
Finally, SATA defines three PHY layer power states, which have no equivalent mappings
to parallel ATA. They are:
PHY READY – PHY logic and PLL are both on and active
Partial – PHY logic is powered, but in a reduced state. Exit latency is no longer than 10
ns
Slumber – PHY logic is powered, but in a reduced state. Exit latency may be up to 10
ms.
Since these states have much lower exit latency than the ACPI D1 and D3 states, the
SATA Controller defines these states as sub-states of the device D0 state.
COLD
PHY =
Ready
does not. This is the only state allowed for the host controller when the system
Partial
PHY =
Device = D0
Slumber
PHY =
disabled)
Off (port
PHY =
Host = D0
Resume Latency
COLD
Slumber
PHY =
Power
(cannot respond to PCI configuration
Device = D1
disabled)
Off (port
PHY =
Slumber
PHY =
Device = D3
Order Number: 300641-004US
disabled)
HOT
Off (port
PHY =
Intel
(may respond to
HOT
®
has V
6300ESB ICH—5
Device = D3
Host = D3
November 2007
PHY =
OFF
CC
, but
®