Intel 845Pe Chipset; Intel 845Pe Chipset Block Diagram - Intel D845PEBT2 Specification

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1.7 Intel 845PE Chipset
The Intel 845PE chipset consists of the following devices:
•
Intel 82845PE Memory Controller Hub (MCH) with Accelerated Hub Architecture (AHA) bus
•
Intel 82801DB I/O Controller Hub (ICH4) with AHA bus
•
Intel 82802AB (4 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 ICH4 is a centralized controller for the Desktop
Board D845PEBT2's I/O paths. The FWH provides the nonvolatile storage of the BIOS. The
component combination provides the chipset interfaces as shown in Figure 3.
System Bus
Memory Controller
Hub (MCH)
AGP
Interface
For information about
The Intel 845PE chipset
Resources used by the chipset
UDMA 33
ATA-66/100
845PE Chipset
82845PE
AHA
Bus
DDR SDRAM
SMBus
Bus
Figure 3. Intel 845PE Chipset Block Diagram
Network
USB
82801DB
I/O Controller Hub
(ICH4)
LPC Bus
PCI Bus AC Link
Product Description
82802AB
4 Mbit Firmware
Hub (FWH)
OM15029
Refer to
http://developer.intel.com
Chapter 2
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