NH82801HBM S LB9A Intel, NH82801HBM S LB9A Datasheet - Page 605

• 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

EHCI Controller Registers (D29:F7, D26:F7)
15.2.1.3
Note:
Intel
®
ICH8 Family Datasheet
HCSPARAMS—Host Controller Structural Parameters
Offset:
Default Value:
This register is reset by a suspend well reset and not a D3-to-D0 reset or HCRESET.
NOTE: This register is writable when the WRT_RDONLY bit is set.
31:24
23:20
19:16
15:12
11:8
7:4
3:0
Bit
Reserved — RO. Default=0h.
Debug Port Number (DP_N) — RO (special). Hardwired to 1h indicating that the Debug
Port is on the lowest numbered port on the EHCI.
Reserved
Number of Companion Controllers (N_CC) — R/W (special). This field indicates the
number of companion controllers associated with this USB EHCI host controller.
A 0 in this field indicates there are no companion host controllers. Port-ownership hand-
off is not supported. Only high-speed devices are supported on the host controller root
ports.
A value of 1 or more in this field indicates there are companion USB UHCI host
controller(s). Port-ownership hand-offs are supported. High, Full- and Low-speed
devices are supported on the host controller root ports.
The ICH8 allows the default value of 3h (D29) or 2 (D26) to be over-written by BIOS.
When removing classic controllers, they must be disabled in the following order:
Function 2, Function 1, and Function 0, which correspond to ports 5:4, 3:2, and 1:0,
respectively for Device 29. For Device 26 the following order is Function 1 then Function
0, which correspond to ports 9:8 and 7:6, respectively.
Number of Ports per Companion Controller (N_PCC) — RO. Hardwired to 2h. This field
indicates the number of ports supported per companion host controller. It is used to
indicate the port routing configuration to system software.
Reserved. These bits are reserved and default to 0.
N_PORTS — R/W (special). This field specifies the number of physical downstream
ports implemented on this host controller. The value of this field determines how many
port registers are addressable in the Operational Register Space. Valid values are in the
range of 1h to Fh.
The ICH8 reports 6h for D29 and 4h for D26 by default. However, software may write a
value less than the default for some platform configurations. A 0 in this field is
undefined.
MEM_BASE + 04h
00103206h (D29:F7)
00102204h (D26:F7)
–
07h
Description
Attribute:
Size:
R/W (special), RO
32 bits
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