Premio Computer Apollo/Shadowhawk - Manual (Page 47)

Intel Desktop Board D845HV/D845WN Technical Product Specification
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1.8 Intel ® 845 Chipset
The Intel 845 chipset consists of the following devices:
• Intel 82845 Memory Controller Hub (MCH) with Accelerated Hub Architecture (AHA) bus
• Intel 82801BA I/O Controller Hub (ICH2) with AHA bus
• Intel 82802AB 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 ICH2 is a centralized controller for the board’s I/O
paths. The FWH provides the nonvolatile storage of the BIOS. The component combination
provides the chipset interfaces as shown in Figure 4.
845 Chipset
82801BA
I/O Controller Hub
(ICH2)
82845
Memory Controller
Hub (MCH)
82802AB 4 Mbit
Firmware Hub
(FWH)
AHA
Bus
System Bus
UDMA 33
ATA-66/100
USB
AGP
Interface
OM12275
Network
AC Link PCI Bus SMBus
SDRAM
Bus
LPC Bus
Figure 4. Intel 845 Chipset Block Diagram
For information about Refer to
The Intel 845 chipset http://developer.intel.com
Resources used by the chipset Chapter 2