SOYO SY-7IS2 user manual Intel 815EP Chipset System

Motherboard Description SY-7IS2

1-6 CHIPSET

The Intel ® 815EP Chipset is a high-flexibility chipset designed to extend from the basic graphics/multimedia PC platform up to the mainstream performance desktop platform. The chipset consists of a Memory Controller Hub (Intel ® 815EP MCH), an I/O Controller Hub2 (ICH2) for the I/O subsystem, and a Firmware Hub(FWH). The Intel ® 815EP MCH integrates a system memory SDRAM controller that supports a 64-bit 100/133 MHz SDRAM array.

1-6.1 The Intel® 815EP Chipset System

The Intel ® 815EP Chipset uses a hub architecture with the Intel ® 815EP MCH as the host bridge hub and the 82801BA I/O Controller Hub2(ICH2) as the I/O hub. The ICH2 is a highly integrated multifunctional I/O Controller Hub that provides the interface to the PCI Bus and integrates many of the functions needed in today’s PC platforms. The Intel ® 815EP MCH and ICH2 communicate over a dedicated hub interface.

82801BA(ICH2) functions and capabilities include:

•PCI Rev2.2 compliant with support for 33MHz PCI operations

•ICH2 supports up to 6 PCI/Req/Gnt pairs

•Integrated System Management Controller

•Enhanced DMA Controller, Interrupt Controller & Timer Functions

•Bus Master IDE controller – Supports Ultra ATA/100

•USB host interface with support for 4 USB ports

•AC’97 2.1 interface

•Low Pin Count (LPC) interface

•Firmware Hub(FWH)interface support

•Alert On LAN

•SIM Bus controller

•I/O APIC

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