NH82801DBSL8DE 869490 Intel, NH82801DBSL8DE 869490 Datasheet - Page 86
NH82801DBSL8DE 869490
Manufacturer Part Number
NH82801DBSL8DE 869490
Description
Manufacturer
Intel
Datasheet
1.NH82801DBSL8DE_869490.pdf
(587 pages)
Specifications of NH82801DBSL8DE 869490
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Functional Description
5.3
5.3.1
86
Figure 5-6. LPC Interface Diagram
LPC Bridge (w/ System and Management Functions)
(D31:F0)
The LPC Bridge function of the ICH4 resides in PCI Device 31:Function 0. In addition to the LPC
bridge function, D31:F0 contains other functional units including DMA, Interrupt controllers,
Timers, Power Management, System Management, GPIO, and RTC. In this chapter, registers and
functions associated with other functional units (power management, GPIO, USB, IDE, etc.) are
described in their respective sections.
LPC Interface
The ICH4 implements an LPC interface as described in the LPC 1.0 specification. The LPC
interface to the ICH4 is shown in
are shown as optional, but peripherals are not required to do so.
Intel
SUS_STAT#
®
ICH4
GPI
PCI Bus
LFRAME#
(optional)
(optional)
(optional)
LAD[3:0]
LPCPD#
LDRQ#
LSMI#
Figure
5-6. Note that the ICH4 implements all of the signals that
PCI
CLK
PCI
RST#
Super I/O
Intel
®
82801DB ICH4 Datasheet
PCI
SERIRQ
PCI
PME#
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