WO R K I N G W I T H T H E C P U

R14 register

Context ID register

Access instructions

A1, A2, and A3 are the three instructions following the fast context switch.

The Context ID register provides a mechanism that allows real-time trace tools to identify the currently executing process in multi-tasking environments.

Use these instructions to access the Context ID register:

Function

Data

ARM instruction

 

 

 

Read context ID

Context ID

MRC p15,0,Rd,c13,c0,1

 

 

 

Write context ID

Context ID

MCR p15,0,Rd,c13,c0,1

 

 

 

Register format This is the format of the Context ID register (Rd) transferred during this operation.

31

0

Context identifier

R 1 4 r e g i s t e r

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Accessing (reading or writing) this register is reserved.

R 1 5 : T e s t a n d d e b u g r e g i s t e r

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Register R15 to provides device-specific test and debug operations in ARM926EJ-S processors. Use of this register currently is reserved.

J a z e l l e ( J a v a )

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The ARM926EJ-S processor has ARM’s embedded Jazelle Java acceleration hardware in the core. Java offers rapid application development to software engineers.

The ARM926EJ-S processor core executes an extended ARMv5TE instruction set, which includes support for Java byte code execution (ARMv5TEJ). An ARM optimized Java Virtual Machine (JVM) software layer has been written to work with the Jazelle hardware. The Java byte code acceleration is accomplished by the following:

Hardware, which directly executes 80% of simple Java byte codes.

104Hardware Reference NS9215

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Digi NS9215 manual T e s t a n d d e b u g r e g i s t e r, Z e l l e J a v a, Context ID register Access instructions

NS9215 specifications

The Digi NS9215 is a powerful solution designed for industrial applications that require reliable connectivity and robust performance. Built on a foundation of advanced technologies, the NS9215 serves as a versatile networking device that meets the demands of automation, remote monitoring, and data acquisition.

One of the standout features of the Digi NS9215 is its multi-protocol support. It is capable of handling various communication protocols, including Ethernet, Serial, and Wireless, making it ideal for integration into heterogeneous environments. This flexibility enables users to connect legacy devices to modern networks seamlessly, facilitating smoother data communication across different platforms.

The NS9215 is equipped with powerful processing capabilities, featuring an integrated processor that ensures efficient data handling. This enables the device to perform complex data tasks without compromising performance. Its high-speed connectivity options also allow for rapid data transmission, which is crucial for real-time applications in industrial settings.

Another critical characteristic of the Digi NS9215 is its reliability in harsh environments. Built to withstand extreme temperatures, humidity, and electrical interference, this device assures consistent operation even in challenging conditions. Its rugged design minimizes the risk of failure, making it suitable for deployment in various industrial environments.

Security is a top priority for the Digi NS9215. It comes with advanced security features that protect sensitive data during transmission and prevent unauthorized access. Employing encryption protocols and secure authentication methods, the NS9215 ensures that data integrity and confidentiality are maintained throughout its operation.

The user-friendly interface of the NS9215 allows for easy configuration and management. This ease of use reduces the time required for installation and setup, enabling quick deployment in field operations. Additionally, remote management capabilities enhance operational efficiency, allowing users to monitor device performance and make adjustments from anywhere.

Furthermore, the NS9215 supports extensive scalability options. As organizations grow and evolve, the ability to scale up or adapt the networking capabilities becomes essential. With its modular design, the NS9215 can easily accommodate additional devices and protocols, ensuring longevity and continued relevance in a rapidly changing technological landscape.

In conclusion, the Digi NS9215 is a robust networking device designed for a wide range of industrial applications. Its multi-protocol support, reliability, security features, user-friendly interface, and scalability make it a valuable addition to any industrial network infrastructure, delivering performance and efficiency that businesses can depend on for critical operations.