Intel D815EEA2 User Manual

Product Description
27
1.8.1.1 Intel
®
82815 Graphics and Memory Controller Hub (GMCH)
The GMCH provides the following:
• An integrated Synchronous DRAM memory controller with autodetection of SDRAM
• An interface for a single AGP device or a Graphics Performance Accelerator (GPA) card
• An interface for an optional digital video output (DVO) connector for a flat panel, digital CRT,
or TV-out
• Support for ACPI Rev. 2.0 and APM Rev. 1.2 compliant power management
1.8.1.2 Intel
®
82801BA I/O Controller Hub (ICH2)
The ICH2 provides the following:
• 33 MHz PCI bus interface
• Support for up to six PCI master devices
• Low Pin Count (LPC) interface that supports an LPC-compatible I/O controller
• Support for two Master/DMA devices
• Integrated IDE controller that supports Ultra DMA (33 MB/sec) and ATA-66/100 mode
(66 MB/sec, 100 MB/sec)
• Integrated LAN Media Access Controller
• Universal Serial Bus interface with two USB controllers providing four ports in a
UHCI Implementation (additional USB ports provided with the optional SMSC
LPC47M142 I/O controller)
• Power management logic for ACPI Rev. 1.0b compliance
• System Management Bus (SMBus clock and data lines also routed to PCI bus connector 2)
• Real-time clock with 256-byte battery-backed CMOS RAM
• AC ’97 digital link for audio codec, including:
 AC ’97 2.1 compliance
 Logic for PCM in, PCM out, and mic input
 PCI functions for audio
 Communication and Network Riser (CNR) interface
1.8.1.2.1 IDE Interfaces
The ICH2’s IDE controller has two independent bus-mastering IDE interfaces that can be
independently enabled. The IDE interfaces support the following modes:
• Programmed I/O (PIO): CPU controls data transfer.
• 8237-style DMA: DMA offloads the CPU, supporting transfer rates of up to 16 MB/sec.
• Ultra DMA: DMA protocol on IDE bus supporting host and target throttling and transfer rates
of up to 33 MB/sec.
• ATA-66: DMA protocol on IDE bus supporting host and target throttling and transfer rates of
up to 66 MB/sec. ATA-66 protocol is similar to Ultra DMA and is device driver compatible.
• ATA-100: DMA protocol on IDE bus allows host and target throttling. The ICH2 ATA-100
logic can achieve read transfer rates up to 100 MB/sec and write transfer rates up to 88 MB/sec.
✏ NOTE
ATA-66 and ATA-100 are faster timings and require a specialized cable to reduce reflections,
noise, and inductive coupling.

Intel D815EEA2 Specifications

General

Brand	Intel
Model	D815EEA2
Category	Motherboard
Language	English