
S875WP1-E TPS
Functional Architecture
Revision 4.0
13
3.2 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 Server
Board S875WP1-E’s I/O paths. The FWH provides the nonvolatile storage of the BIOS. The
component combination provides the chipset interfaces as shown in Figure 6.
875P Chipset
82801ER
I/O Controller Hub
(ICH5-R)
82875P
Memory Controller
Hub (MCH)
82802AC
8 Mbit Firmware
Hub (FWH)
AHA
Bus
System Bus
UDMA 33
ATA-66/100
USB
AGP
Interface
OM15967
Network
AC Link
PCI
Bus
SMBus
Dual-Channel
DDR SDRAM
Bus
LPC Bus
SATA
Ports
Figure 6. Intel 875P Chipset Block Diagram
For information about
Refer to
The Intel 875P chipset
http://developer.intel.com