Intel Pentium 4 User Manual

Introduction
R
22 Intel
®
Pentium
®
4 Processor / Intel
®
850 Chipset Family Platform Design Guide
1.3.2.1 Intel
®
82850/82850E Memory Controller Hub (MCH)
The MCH component provides the processor interface, Direct RDRAM device interface, AGP
interface and hub interfaces in an Intel 850 chipset platform.
The MCH is in a 615-ball OLGA package and has the following functionality:
• Supports a single processor with a data transfer rate of 400 MHz (82850)
• Supports a single processor with a data transfer rate of 533 MHz (82850E)
• Dual Rambus channels support 300 MHz and 400 MHz RDRAM technology (82850)
• Dual Rambus channels support 400 MHz and 533 MHz RDRAM technology (82850E)
• AGTL+ host bus with integrated termination supporting 32-bit host addressing
• 1.5 V AGP interface with 4x SBA/data transfer and 2x/4x fast write capability
• 8-bit, 66 MHz 4x hub interface to ICH2
1.3.2.2 Intel
®
ICH2
The ICH2 provides the I/O subsystem with access to the rest of the system. Additionally, it
integrates many widely utilized I/O functions.
The ICH2 is in a 360 ball EBGA package and contains the following functionality:
• PCI 2.2 bus interface at 33 MHz, 133 MB/s maximum throughput
• Supports up to 6 PCI master devices
• LAN controller with 10/100 Mbit/s Ethernet and 1 Mbit/s HomePDA* support
• Low pin count (LPC) interface
• Firmware Hub (FWH) interface
• 82C54 based timer
• IDE controller with support for Ultra ATA 100/66/33
• Two USB controllers for a total of four ports
• Enhanced DMA controller with support for REQ#/GNT# pairs, LPC DMA, Type F DMA
• SMBus interface
• AC-link for external audio and telephony CODECs

Intel Pentium 4 Specifications

General

Brand	Intel
Model	Pentium 4
Category	Computer Hardware
Language	English