I 2 C M A S T E R / S L A V E I N T E R F A C E

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Flow charts. .

F l o w c h a r t s

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Master module (normal mode, 16- bit)

 

 

 

host idle

 

 

 

 

write cmd

 

write (optional)

 

write cmd

write cmd

 

M_READ

 

M_ADDR_REG

 

M_WRITE

M_NOP

 

 

 

 

1

write

write

 

 

 

 

 

TX_DATA_REG

TX_DATA_REG

 

wait irq

4

M_ARBIT_LOST

 

 

 

 

read

 

 

 

 

 

 

irq

 

 

 

 

rx/status

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

wait irq

 

 

 

4

M_NO_ACK

 

 

 

wait irq

irq

 

read status

 

 

read

 

 

 

 

 

 

rx/status

 

 

 

 

 

 

 

 

write cmd

 

M_TX_DATA

 

M_RX_DATA

 

M_STOP

3

irq

 

 

irq

 

 

 

 

 

 

 

 

wait irq

 

 

 

 

 

 

read status

 

 

 

 

 

 

M_CMD_ACK

 

 

 

write cmd

write (optional)

irq

 

 

 

 

 

 

 

M_NOP

M_ADDR_REG

 

 

 

 

 

 

1

 

 

 

 

write cmd

write cmd

 

write cmd

 

 

M_READ

M_WRITE

 

M_STOP

 

 

Notes:

1Writing M_ADDR_REQ is not required if the device address is not changed.

2Read on a non-existing slave.

3Do not wait for the slave to perform a NO_ACK.

4STATUS_REG and RX_DATA_REG are read simultaneously.

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Digi NS9215 manual O w c h a r t s, Master module normal mode, 16- bit

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.