Intel 440GX, Design Manual

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Intel
®
440GX AGPset Design Guide 1-4
Introduction
Intel introduced the Intel
®
Pentium
®
II processor as 350/100 and 400/100 speeds with 512 KB L2
cache versions.
1.3.2 Intel
®
440GX AGPset
•
The Intel
®
440GX AGPset is the fourth generation chipset based on the Intel
®
Pentium
®
Pro
processor architecture. It has been designed to interface with the Intel
®
Pentium
®
II
processor’s system bus at 100 MHz. Along with its Host-to-PCI bridge interface, the 82443GX
host bridge controller has been optimized with a 100 MHz SDRAM memory controller and
data path. The 82443GX also features the Accelerated Graphics Port (AGP) interface. The
82443GX component includes the following functions and capabilities:
•
Support for single and dual Intel
®
Pentium
®
II processor configurations
•
64-bit GTL+ based system data bus Interface
•
32-bit system address bus support
•
64/72-bit main memory interface with optimized support for SDRAM
•
32-bit PCI bus interface with integrated PCI arbiter
•
AGP interface with up to 133 MHz data transfer rate
•
Extensive data buffering between all interfaces for high throughput and concurrent operations
Figure 1-1. Intel
®
Pentium
®
II Processor / Intel
®
440GX AGPset System Block Diagram
sys_blk.vsd
TV
Video BIOS
Host Bus
82443GX
Host Bridge
Main
Memory
Pentium
®
II
Processor
Pentium
®
II
Processor
SDRAM Support
72 Bit
w/ECO
2X AGP Bus
Graphics
Device
Display
ISA Bus
ISA Slots
System BIOS
System Mgnt (SM) Bus
2 IDE Ports
(Ultra DMA/33)
2 USB
Ports
USB
USB
IO
APIC
82371EB
(PIIX4E)
(PCI-to-ISA
Bridge)
Primary PCI Bus
(PCI Bus #0)
PCI Slots
Encoder
Graphics
Local Memory
Video
- DVD
- Camera
- VCR
- VMI
- Video Capture
100 MHz