Quatech DSC-100 user manual Port Address Range

Page 12

4 Address Map and Special Registers

This chapter explains how the two UARTs and special registers are addressed, as well as the layout of those registers. This material will be of interest to programmers writing driver software for the DSC-100.

4.1 Base Address and Interrupt Level (IRQ)

The base address and IRQ used by the DSC-100 are determined by the BIOS or operating system. Each serial port uses 8 consecutive I/O locations. The two ports reside in a single block of I/O space in eight-byte increments, along with a sixteen-byte reserved region, for a total of 32 contiguous bytes, as shown in Figure 7.

Port

I/O Address Range

 

 

 

 

Serial 1

Base Address + 0

to

Base Address + 7

 

 

 

 

Serial 2

Base Address + 8

to

Base Address + 15

 

 

 

 

(reserved)

Base Address + 16

to

Base Address + 31

 

 

 

 

Figure 7 --- Port Address Map

Both serial ports share the same IRQ. The DSC-100 signals a hardware interrupt when either port requires service. The interrupt signal is maintained until no port requires service. Interrupts are level-sensitive on the PCI bus.

The base address and IRQ are automatically detected by the device drivers Quatech supplies for various operating systems. For cases where no device driver is available, such as for operation under DOS, Quatech supplies the "QTPCI" DOS software utility for manually determining the resources used. See page 21 for details.

Quatech DSC-100 User's Manual

10

Page 11 Page 13
Image 12
Page 11 Page 13
Contents DSC-100 Date of Purchase Model Number Page Declaration of Conformity Address Map and Special Registers Base Address and Interrupt Level IRQEnhanced Serial Adapter Identification Viewing Resources with Device ManagerGeneral Information Features IND Option --- Surge Suppression UpgradeHardware Configuration Factory Default ConfigurationEnable Scratchpad Register SPAD, J8 Force High-Speed Uart Clock X2, X4, or X8, J5-J7 Clock multiplier jumper optionsDTE/DCE Selection J2 -- Port J1 -- PortHardware Installation Jumper/connector locationsPort Address Range Enabling the Special Registers Interrupt Status RegisterOptions Register Bit Name DescriptionClock Rate Multiplier RR1 RR0Windows Configuration Windows MillenniumWindows Windows Windows Page Windows NT Page DOS and Other Operating Systems QTPCI.EXEQTPCI.EXE Basic Mode display QTPCI.EXE Expert Mode display Page OS/2 External Connections DCE PCI Resource Map INTA#Specifications Maximum Load pF Data Rate 10% 15% 20% 25% Kbaud Trans Time Troubleshooting Computer will not boot upDSC-100 Revision June

DSC-100 specifications

The Quatech DSC-100 is a robust and versatile device that serves as a Serial-to-Ethernet converter, enabling seamless connectivity for serial devices to the Ethernet network. Designed for ease of use and high reliability, the DSC-100 is ideal for a wide array of applications in industrial automation, medical devices, telecommunications, and various IoT deployments.

One of the main features of the DSC-100 is its ability to support multiple serial interfaces, accommodating both RS-232 and RS-485 protocols. This flexibility allows a diverse range of equipment to connect effortlessly, whether it’s legacy devices or modern technology. The DSC-100 provides up to four serial ports, allowing users to connect multiple devices simultaneously, streamlining the communication process.

The DSC-100 is equipped with advanced networking technologies, including TCP/IP and UDP protocols. This capability facilitates reliable data transmission over the network, ensuring that data from serial devices is sent and received efficiently. Additionally, the device supports automatic IP addressing, minimizing the need for manual configuration and reducing setup time.

Another notable characteristic of the DSC-100 is its built-in web server. This feature enables users to configure and manage the device through a browser interface, providing a user-friendly experience that simplifies network management. The web interface allows for real-time monitoring of device performance and status, making it easy to identify issues before they escalate.

Security is a top priority in any networked environment, and the DSC-100 includes robust security features to safeguard data. It supports secure socket layer (SSL) encryption and various authentication methods, ensuring that sensitive information remains protected during transmission.

The DSC-100 is designed for durability and can operate in challenging environments. It boasts an industrial-grade housing that protects against dust, moisture, and wide temperature fluctuations, making it suitable for outdoor or harsh indoor applications.

Overall, the Quatech DSC-100 stands out for its feature-rich design, incorporating multiple serial interface support, advanced networking protocols, user-friendly web management, and enhanced security measures. Its combination of durability and flexibility makes it a valuable asset for businesses looking to modernize their serial device connectivity and improve operational efficiency. With the DSC-100, users can bridge the gap between legacy systems and modern networks seamlessly, paving the way for enhanced productivity and innovation.
Top Page Image Contents