Appendix C System Assignments

C.1 System I/O Ports

Table C.1: System I/O ports

Addr. range (Hex)

Device

 

 

00-0F

Master DMA controller

20-21F

Master Interrupt controller

40-5F

Timer/Counter

60-6F

Keyboard controller

(60h)

KBC Data

(61h)

Misc Funtions & Spkr Ctrl

(64h)

KBC Command/Status

70-77

RTC/COMS/NMI-Disable

78-7F

-available for system use-

80

-reserved-(debug port)

81-8F

DMA Page Registers

90-91

-available for system use-

92

System Control

93-9F

-available for system use-

A0-A1H

Slave Interrupt Controller

C0-DF

Slave DMA Controller

E0-FF

-available for system use-

100-1EF

-available for system use-

170-178

Secondary IDE Control

1F0-1F8

Primary IDE Control

200-20F

Game Port

295-296

Hardware Monitor

2E8-2EF

COM4

2F8-2FF

COM2

378-37F

Parallel Port(Standard & AFF)

3C0-3CF

EGA

3D0-3DF

VGA

3E8-3EF

COM3

3F0-3F1

Configuration Index/Data

3F0-3F7

Floppy Controller

3F8-3FF

COM1

778-77A

Parallel Port(ECP Extensions)(Port 378+400)

PCI-6886 User’s Manual

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Intel PCI-6886 user manual Appendix C System Assignments, System I/O Ports, Table C.1 System I/O ports

PCI-6886 specifications

The Intel PCI-6886 is a versatile, highly integrated chipset designed for desktop computing solutions, catering predominantly to the needs of the OEM market. This chipset stands as a significant part of Intel's efforts to enhance performance and efficiency in personal computing.

One of the main features of the PCI-6886 is its support for a dual IDE interface, enabling fast data transfer rates between the motherboard and connected storage devices like hard drives and CD-ROMs. It supports a maximum of four IDE devices, enhancing the system's expandability and providing users with the flexibility to increase storage capacity as needed.

The PCI-6886 supports a range of Intel processors, specifically designed to work seamlessly with the Pentium architecture. This compatibility makes it an ideal choice for system builders looking to create robust and reliable PCs that can handle various applications ranging from business to leisure activities.

Moreover, the PCI-6886 incorporates advanced power management technologies, allowing for substantial energy savings. Through its capabilities to manage CPU and peripheral usage, the chipset helps reduce power consumption, an essential feature in today’s environmentally conscious market. These power-saving features are particularly valuable in mobile computing, where battery life is crucial.

Furthermore, the PCI-6886 boasts an advanced PCI (Peripheral Component Interconnect) bus architecture. This facilitates the connection and communication of multiple peripheral devices without compromising system performance. With its support for a wide array of PCI devices, the chipset contributes significantly to the overall versatility of the computing platform.

The integration of graphics support is another impressive aspect of the PCI-6886. It comes equipped with a 2D/3D graphics accelerator, allowing for improved visual performance in gaming and multimedia applications. This integration helps reduce system costs and simplifies the design process for manufacturers by minimizing the need for additional graphics cards.

In conclusion, the Intel PCI-6886 chipset represents a well-rounded solution for desktop systems, combining powerful performance with energy efficiency and expandability. Its support for various processors, advanced IDE and PCI features, along with integrated graphics capabilities, make it a popular choice for OEMs and builders aiming to deliver reliable and effective computing experiences. With continued advancements in technology, the PCI-6886 remains relevant, adapting to the evolving needs of the computing landscape.