NH82801HBM S LB9A Intel, NH82801HBM S LB9A Datasheet - Page 196

• Manufacturer Part Number: NH82801HBM S LB9A
• Description: CONTROLLER HUB, ICH8M, I/O, 82801HBM
• Manufacturer: Intel

Specifications of NH82801HBM S LB9A

• Power Dissipation Pd: 2.4W
• Digital Ic Case Style: BGA
• No. Of Pins: 676
• Pci Bus Type: I/O Controller Hub
• Pci Express Base Spec: PCIe 1.1
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

5.16
Note:
Table 81.
196
SATA Host Controller (D31:F2, F5)
The SATA function in the ICH8 has three modes of operation to support different
operating system conditions. In the case of Native IDE enabled operating systems, the
ICH8 utilizes two controllers to enable all six ports of the bus. The first controller
(Device 31: Function 2) supports ports 0 -3 and the second controller
(Device 31: Function 5) supports ports 4 and 5. When using a legacy operating system,
only one controller (Device 31: Function 2) is available that supports ports 0 – 3. In
AHCI or RAID mode, only one controller (Device 31: Function 2) is utilized enabling all
six ports.
The MAP register,
sharing is enabled, all decode of I/O is done through the SATA registers. Device 31,
Function 1 (IDE controller) is hidden by software writing to the Function Disable
Register (D31, F0, offset F2h, bit 1), and its configuration registers are not used.
The ICH8 SATA controllers feature six (desktop only) / three (mobile only) sets of
interface signals (ports) that can be independently enabled or disabled (they cannot be
tri-stated or driven low). Each interface is supported by an independent DMA controller.
The ICH8 SATA controllers interact with an attached mass storage device through a
register interface that is equivalent to that presented by a traditional IDE host adapter.
The host software follows existing standards and conventions when accessing the
register interface and follows standard command protocol conventions.
SATA interface transfer rates are independent of UDMA mode settings. SATA interface
transfer rates will operate at the bus’s maximum speed, regardless of the UDMA mode
reported by the SATA device or the system BIOS.
SATA Feature Support
Native Command Queuing (NCQ)
Auto Activate for DMA
Hot Plug Support
Asynchronous Signal Recovery
3 Gb/s Transfer Rate
ATAPI Asynchronous Notification
Host Initiated Power Management
Staggered Spin-Up
Command Completion Coalescing
Port Multiplier
External SATA
Feature
Section
13.1.29, provides the ability to share PCI functions. When
RAID Disabled)
Supported
Supported
(AHCI/
ICH8
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
RAID Enabled)
(Desktop Only)
(Mobile Only)
Supported
Supported
Supported
Supported
Supported
Supported
Supported
Supported
Supported
Intel
(AHCI/
ICH8
N/A
N/A
®
Functional Description
ICH8 Family Datasheet