Intel 440GX ユーザーズマニュアル

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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