S E R I A L C O N T RO L M O D U L E : H D L C

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Wrapper Configuration register.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

.

Register

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Reserv

RXEN

TXEN

MODE

 

 

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

RX

 

TX

 

 

ed

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FLUSH

 

FLUSH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15

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2

1

 

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RXBYTES

RX

CRC

 

 

 

Reserved

 

 

 

 

RL

 

LL

 

 

 

Reserved

 

 

 

CLOSE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Register bit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

assignment

Bits

 

Access

Mnemonic

Reset

 

Description

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D31

 

N/A

 

Reserved

 

N/A

 

 

N/A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D30

 

R/W

 

RXEN

 

0

 

 

0

Disable wrapper function

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

Enable wrapper to process receive characters

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D29

 

R/W

 

TXEN

 

0

 

 

0

Disable wrapper transmitter function

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

Enable wrapper to process transmit characters

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D28

 

R/W

 

MODE

 

0

 

 

Applies only to UART channel C.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

UART mode

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

HDLC mode

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D27:18

N/A

 

Reserved

 

N/A

 

 

N/A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D17

 

R/W

 

RXFLUSH

0

 

 

Resets the contents of the 64-byte RXFIFO.

 

 

 

 

 

 

 

 

 

 

 

 

 

Write a 1, then a 0 to reset the FIFO.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D16

 

R/W

 

TXFLUSH

0

 

 

Resets the contents of the 64-byte TX FIFO.

 

 

 

 

 

 

 

 

 

 

 

 

 

Write a 1, then a 0 to reset the FIFO.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D15:14

R

 

RXBYTES

00

 

 

Indicates how many bytes are pending in the wrapper.

 

 

 

 

 

 

 

 

 

 

 

The wrapper writes to the RX FIFO only when 4 bytes are

 

 

 

 

 

 

 

 

 

 

 

received or a buffer close event occurs, such as end of

 

 

 

 

 

 

 

 

 

 

 

frame.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D13

 

R/W

 

RXCLOSE

0

 

 

Allows software to close a receive buffer. Hardware

 

 

 

 

 

 

 

 

 

 

 

clears this bit when the buffer has been closed.

 

 

 

 

 

 

 

 

 

 

 

 

 

0

Idle or buffer already closed

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

Software initiated buffer close

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D12

 

R/W

 

CRC

 

0

 

 

Controls whether the HDLC transmitter hardware sends

 

 

 

 

 

 

 

 

 

 

 

CRC bytes before the closing flag.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

Send CRC bytes before the closing flag

 

 

 

 

 

 

 

 

 

 

 

 

 

1

Do not send CRC bytes before the closing flag;

 

 

 

 

 

 

 

 

 

 

 

 

handled by software

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D11:06

N/A

 

Reserved

 

0

 

 

N/A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D05

 

R/W

 

RL

 

0

 

 

Remote loopback

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Provides an internal remote loopback feature. When the

 

 

 

 

 

 

 

 

 

 

 

RL field is set to 1, the receive HDLC data signal is

 

 

 

 

 

 

 

 

 

 

 

connected to the transmit HDLC data signal.

 

 

www.digiembedded.com

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Digi NS9215 manual Received or a buffer close event occurs, such as end

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.