Local Bus Interfaces; Fast Ide Controller; Accelerated Graphics Port (Agp); Xga Graphics Controller - Xycom AHIP-370 Manual

Local Bus Interfaces

The Celeron design uses the 440BX chip set. The 440BX integrates a high perform-
ance interface from PCI to IDE. This interface is capable of accelerated data transfers.
The 440BX chipset provides an accelerated PCI-to-ISA interface that includes
•
A high-performance enhanced IDE controller
•
PCI and ISA master/slave interfaces
•
Plug-and-play port for on-board devices
The chipset also provides many common I/O functions found in ISA-based PC sys-
tems, including:
•
Seven-channel DMA controller
•
Two 82C59 interrupt controllers
•
8254 timer/counter
•
Control logic for NMI generation

Fast IDE controller

The high-speed local bus IDE controller supports programmed I/O modes 0-4. It also
provides 4x32-bit read-ahead buffer and 4x32-bit write-post buffer support to en-
hance IDE performance.

Accelerated Graphics Port (AGP)

XGA Graphics Controller

The AGP bus controller supports CRT displays and flat panel displays with 2 MB
video memory. The controller also supports resolutions of 640x480, 800x600, and
1024x768 with 64K colors.
Chapter One - Introduction
7