AMD-750 データシートの表示（PDF） - Advanced Micro Devices

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AMD-750

Chipset

Advanced Micro Devices 

AMD-750™ Chipset Overview

23016A—August 1999

AMD-756™ Peripheral Bus Controller

Key features of the AMD-756 controller are listed in this

section. For more information, see the AMD-756™ Peripheral

Bus Controller Data Sheet, order# 22548.

The AMD-756 contains the following functional units:

n Integrated ISA bus controller

n Enhanced master-mode PCI IDE controller with ultra

DMA-33/66 support

n USB controller

n Keyboard/mouse controller

n Real-time clock

PCI-to-ISA Bridge

The AMD-756 controller includes a PC97-compliant PCI-to-ISA

bridge with the following features:

n PCI 2.2-compliant interface

n Eight-level doubleword buffer between PCI and ISA buses

n Dual cascaded AT-8259-compatible interrupt controllers

n Dual AT-8237-compatible DMA controllers

n Type F DMA transfer support

n Support for ISA legacy distributed DMA across the PCI bus

n AT-8254-compatible programmable interval timer

n Integrated real-time clock w/extended 256-byte CMOS RAM

n Programmable ISA bus clock

n Fast reset and gate A20 operation

n Edge-triggered or level-sensitive interrupts

n Flash, 2-Mbyte EPROM, BIOS support

n Integrated keyboard controller with PS/2 mouse support

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AMD-756™ Peripheral Bus Controller

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