Intel KD875PBZLKPAK10 Product Specification - Page 28

Intel, 875P Chipset

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Intel Desktop Board D875PBZ Technical Product Specification 1.7 Intel® 875P Chipset The Intel 875P chipset consists of the following devices: • Intel 82875P Memory Controller Hub (MCH) with Accelerated Hub Architecture (AHA) bus • Intel 82801ER I/O Controller Hub (ICH5-R) with AHA bus • Intel 82802AC (8 Mbit) Firmware Hub (FWH) The MCH is a centralized controller for the system bus, the memory bus, the AGP bus, and the Accelerated Hub Architecture interface. The ICH5-R is a centralized controller for the Desktop Board D875PBZ's I/O paths. The FWH provides the nonvolatile storage of the BIOS. The component combination provides the chipset interfaces as shown in Figure 8. System Bus Parallel ATA IDE Interface 875P Chipset 82875P Memory Controller Hub (MCH) AHA Bus 82801ER I/O Controller Hub (ICH5-R) USB 82802AC 8 Mbit Firmware Hub (FWH) CSA Interface AGP Interface Dual-Channel DDR SDRAM Bus Serial LPC Bus ATA IDE SMBus PCI Bus AC Link Interface Figure 8. Intel 875P Chipset Block Diagram OM15967 For information about The Intel 875P chipset Resources used by the chipset Refer to http://developer.intel.com Chapter 2 28

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Intel Desktop Board D875PBZ Technical Product Specification
28
1.7 Intel
®
875P Chipset
The Intel 875P chipset consists of the following devices:
Intel 82875P Memory Controller Hub (MCH) with Accelerated Hub Architecture (AHA) bus
Intel 82801ER I/O Controller Hub (ICH5-R) with AHA bus
Intel 82802AC (8 Mbit) Firmware Hub (FWH)
The MCH is a centralized controller for the system bus, the memory bus, the AGP bus, and the
Accelerated Hub Architecture interface.
The ICH5-R is a centralized controller for the Desktop
Board D875PBZ
s I/O paths.
The FWH provides the nonvolatile storage of the BIOS.
The
component combination provides the chipset interfaces as shown in Figure 8.
875P Chipset
82801ER
I/O Controller Hub
(ICH5-R)
82875P
Memory Controller
Hub (MCH)
82802AC
8 Mbit Firmware
Hub (FWH)
AHA
Bus
System Bus
Parallel ATA
IDE Interface
USB
AGP
Interface
OM15967
AC Link
PCI
Bus
SMBus
Dual-Channel
DDR SDRAM
Bus
LPC Bus
Serial
ATA
IDE
Interface
CSA
Interface
Figure 8.
Intel 875P Chipset Block Diagram
For information about
Refer to
The Intel 875P chipset
Resources used by the chipset
Chapter 2