F000:F065h

F000:F0A4h

F000:F841h

F000:F84Dh

F000:F859h

F000:FA6Eh

F000:FE6Eh

F000:FEA5h

F000:FF53h

F000:FF54h

F000:FFF0h

F000:FFF5h

F000:FFFEh

SurePOS 500 4846-XX5 Technical Reference

Compatibility for Video interrupt

MDA and CGA Video Parameter Table Int 1Dh Int 12h Entry Point

Int 11h Entry Point

Int 15h Entry Point

Low 128 character of graphic video font Int 1Ah Entry Point

Int 08h Entry Point Dummy Interrupt Handler

Int 05h Print Screen Entry Point Power-On Entry Point

8 character ROM Date in ASCII “MM/DD/YY” System Model (FCh) (outdated – use SMBIOS)

3.6BDA Memory Addresses

The BIOS Data Area (BDA) starts at 40:0 and should be populated as follows.

Start

Length in

Description

Interrupt

Comments

Location

bytes

Using It

 

 

00h

2

COM1 base address

14h

motherboard UART1 I/O address

02h

2

COM2 base address

14h

motherboard UART2 I/O address

04h

2

COM3 base address

14h

motherboard UART5 I/O address

06h

2

COM4 base address

14h

motherboard UART4 I/O address

08h

2

LPT1 base address

17h

Should be 0000h

0Ah

2

LPT2 base address

17h

Should be 0000h

0Ch

2

LPT3 base address

17h

Should be 0000h

0Eh

2

EBDA segment

 

 

10h

2

Installed hardware

11h

 

12h

1

Reserved

 

 

13h

2

Base memory size

12h

 

15h

2

Reserved

 

 

17h

1

Keyboard control 1

16h

 

18h

1

Keyboard control 2

16h

 

19h

1

Work area for ALT key

16h

 

1Ah

2

Keyboard-buffer Head

16h

 

1Ch

2

Keyboard-buffer Tail

16h

 

1Eh

32

Keyboard Buffer

16h

 

3Eh

1

Floppy recalibrate status

13h

 

3Fh

1

Floppy motor status

13h

 

40h

1

Floppy motor timeout

13h

 

41h

1

Floppy operation status

13h

 

42h

7

Floppy controller status

13h

 

49h

30

Video info

10h

 

67h

4

POST callback address

 

 

6Bh

1

Last Unexpected

 

 

interrupt

 

 

 

 

 

 

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Image 24
IBM 500 manual BDA Memory Addresses

500 specifications

The IBM 500 is a significant player in the world of enterprise solutions, particularly known for its robust capabilities in data processing and analytics. Designed to meet the evolving needs of businesses, the IBM 500 stands out due to its outstanding features that enhance performance, reliability, and scalability, making it a preferred choice for organizations of various sizes.

At the heart of the IBM 500 lies its powerful processing unit, which leverages IBM’s latest Power architecture. This architecture is renowned for its high throughput and efficient energy consumption, allowing businesses to run complex applications seamlessly. With multiple cores and threads, the IBM 500 can handle large volumes of data and execute extensive workloads concurrently, making it ideal for data-intensive operations.

One of the key features of the IBM 500 is its advanced analytics capability. It incorporates IBM Watson technology, which enables organizations to utilize artificial intelligence and machine learning to derive actionable insights from their data. This functionality is crucial for businesses looking to enhance decision-making processes and remain competitive in the market.

The IBM 500 also boasts robust security features. With built-in encryption, compliance monitoring, and advanced user access controls, organizations can safeguard their sensitive data against unauthorized access and potential breaches. This is increasingly important in today’s landscape, where data privacy regulations are becoming more stringent.

In terms of connectivity, the IBM 500 supports a wide range of connectivity options, including high-speed networking and integration with cloud services. This flexibility allows businesses to link their on-premise environments with cloud infrastructures, facilitating hybrid cloud strategies.

Additionally, the IBM 500 is designed with high availability in mind. It includes redundant components and support for failover systems, ensuring that businesses can maintain operations without interruption. This reliability is critical for organizations that cannot afford downtime, such as those in finance, healthcare, or e-commerce.

IBM’s commitment to sustainability is also reflected in the design of the IBM 500. The system is optimized for lower energy consumption, contributing to organizations’ goals for reducing their carbon footprint while maintaining high performance.

Overall, the IBM 500 combines powerful processing, advanced analytics, robust security, and reliable performance in a single solution. It is a testament to IBM’s dedication to providing cutting-edge technology that meets the needs of modern enterprises, while also allowing them to leverage innovation for sustainable growth. As businesses continue to adapt to digital transformations, the IBM 500 serves as a critical ally in navigating these changes effectively.