NH82801BA S L7UU Intel, NH82801BA S L7UU Datasheet - Page 268

• Manufacturer Part Number: NH82801BA S L7UU
• Manufacturer: Intel

Specifications of NH82801BA S L7UU

• Lead Free Status / RoHS Status: Compliant

Register and Memory Mapping
6.1
268
Table 130. PCI Devices and Functions
Note: From a software perspective, the integrated LAN controller resides on the ICH5’s external PCI bus
PCI Devices and Functions
The ICH5 incorporates a variety of PCI functions as shown in
divided into four logical devices (B0:D30, B0:D31, B0:D29 and B1:D8). D30 is the hub
interface-to-PCI bridge, D31 contains the PCI-to-LPC Bridge, IDE controller, SATA controller,
SMBus controller and the AC ’97 Audio and Modem controller functions and D29 contains the
four USB UHCI controllers and one USB EHCI controller. B1:D8 is the integrated LAN controller.
(See
system configuration.
If for some reason, the particular system platform does not want to support any one of Device 31’s
Functions 1–6, Device 29’s functions, or Device 8, they can individually be disabled. The
integrated LAN controller will be disabled if no Platform LAN Connect component is detected
(See
function will not respond to any register reads or writes. This is intended to prevent software from
thinking that a function is present (and reporting it to the end-user).
NOTES:
1. The PCI to LPC bridge contains registers that control LPC, Power Management, System Management,
Bus 0:Device 30:Function 0
Bus 0:Device 31:Function 0
Bus 0:Device 31:Function 1
Bus 0:Device 31:Function 2
Bus 0:Device 31:Function 3
Bus 0:Device 31:Function 5
Bus 0:Device 31:Function 6
Bus 0:Device 29:Function 0
Bus 0:Device 29:Function 1
Bus 0:Device 29:Function 2
Bus 0:Device 29:Function 3
Bus 0:Device 29:Function 7
Bus n:Device 8:Function 0
GPIO, processor Interface, RTC, Interrupts, Timers, DMA.
Bus:Device:Function
Section
Section
5.1.2). This is typically Bus 1, but may be assigned a different number depending on
5.2). When a function is disabled, it does not appear at all to the software. A disabled
Hub Interface to PCI Bridge
PCI to LPC Bridge
IDE Controller
New: SATA Controller
SMBus Controller
AC’97 Audio Controller
AC’97 Modem Controller
USB UHCI Controller #1
USB UHCI Controller #2
USB UHCI Controller #3
New: USB UHCI Controller #4
USB 2.0 EHCI Controller
LAN Controller
Function Description
1
Intel
®
82801EB ICH5 / 82801ER ICH5R Datasheet
Table
130. These functions are