System I/O address specifications—Intel processors

I/O address (hex)

System function (shipping configuration)

 

 

 

000

- 00F

DMA controller no. 1

 

 

 

010

- 01F

Unused

 

 

 

020

- 021

Interrupt controller no. 1

 

 

 

022

- 024

Opti chipset configuration registers

 

 

 

025

- 03F

Unused

 

 

02E - 02F

87334 “Super I/O” configuration for CPU

 

 

 

040

- 05F

Counter/timer registers

 

 

 

044

- 05F

Unused

 

 

 

060

 

Keyboard controller

 

 

 

061

 

Port B

 

 

 

062

- 063

Unused

 

 

 

064

 

Keyboard controller

 

 

 

065

- 06F

Unused

 

 

 

070

- 071

NMI enable/RTC

 

 

 

072

- 07F

Unused

 

 

 

080

- 08F

DMA page registers

 

 

 

090

- 091

Unused

 

 

 

092

 

Port A

 

 

 

093

- 09F

Unused

 

 

0A0 - 0A1

Interrupt controller no. 2

 

 

I/O Address (hex)

System Function (shipping configuration)

 

 

0A2 - 0BF

Unused

 

 

0C0 - 0DF

DMA controller no. 2

 

 

0E0 - 0EF

Unused

 

 

0F0 - 0F1

Coprocessor busy clear/reset

 

 

0F2 - 0FF

Unused

 

 

 

100

- 16F

Unused

 

 

 

170

- 177

Secondary fixed disk controller

 

 

 

178

- 1EF

Unused

 

 

1F0 - 1F7

Primary fixed disk controller

 

 

1F8 - 200

Unused

 

 

 

201

 

JoyStick (decoded in ESS1688)

 

 

 

202

- 21F

Unused

 

 

 

100 Chapter 6 Specifications

Page 108
Image 108
HP CQ40-300 manual System I/O address specifications-Intel processors, Address hex System function shipping configuration

CQ40-105TU, CQ40-109AX, CQ40-111AU, CQ40-114AU, CQ40-300 specifications

The HP CQ40 series laptops, including models like CQ40-120AU, CQ40-120AX, CQ40-131TU, CQ40-129AU, and CQ40-134TU, represent a blend of performance and versatility tailored for everyday computing needs. These laptops, which were released in the mid-2000s, are characterized by their solid build quality, a user-friendly experience, and a range of features that cater to both students and professionals.

One of the standout features of the CQ40 series is its display. Most models in this lineup boast a 14.1-inch diagonal widescreen display with a standard resolution of 1280x800 pixels. This display size strikes a balance between mobility and usability, making it easy to transport while still providing ample screen real estate for work and entertainment.

Performance-wise, the CQ40 series is equipped with a variety of Intel and AMD processors, depending on the specific model. The processors offer a mix of efficiency and performance, making them suitable for everyday tasks such as web browsing, document editing, and media playback. With RAM options typically ranging from 2GB to 4GB, users can expect smooth multi-tasking capabilities.

Storage options in the CQ40 series include hard drives with capacities that generally range from 250GB to 320GB. This storage provides adequate space for files, applications, and media, ensuring users can keep their important documents within easy reach.

In terms of connectivity, the CQ40 laptops are equipped with multiple USB ports, HDMI outputs, and audio jacks, allowing for easy peripheral connections ranging from external drives to printers. They also typically feature Wi-Fi and Ethernet capabilities, ensuring users stay connected whether at home, in the office, or on the go.

Battery life is another consideration, with most models designed to last several hours on a single charge, depending on usage patterns. This aspect makes the CQ40 series a reliable option for users who need to work remotely or during travel without being tethered to a power outlet.

Overall, the HP CQ40 series, including the models CQ40-120AU, CQ40-120AX, CQ40-131TU, CQ40-129AU, and CQ40-134TU, remains a practical choice for budget-conscious users seeking a dependable laptop for day-to-day tasks. With a combination of decent performance, good battery life, and essential features, these laptops continue to serve a purpose in the computing landscape.