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

Interrupt Status register

Register

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

16

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Not used

 

 

 

 

HINT

Reserv

OFLOW

ICRC

VCRC

RABORT

 

 

 

 

 

 

 

 

 

 

 

 

ed

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Reserv

RXCLS

 

 

 

 

Reserved

 

 

 

 

 

TBC

RBC

TX_IDLERX_IDLE

 

ed

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Register bit

assignment

Bits

Access

Mnemonic

Reset

Description

 

 

 

 

 

 

 

D31:22

R/W

Not used

0

Write this field to 0.

 

 

 

 

 

 

 

D21

R/W1TC

HINT

0

HDLC interrupt

 

 

 

 

 

Indicates that the HDLC has generated an interrupt.

 

 

 

 

 

 

 

 

D20

N/A

Reserved

N/A

N/A

 

 

 

 

 

 

 

 

D19

R/W1TC

OFLOW

0

Enable overflow error

 

 

 

 

 

Indicates that an overflow occurred in the HDLC’s 4-byte

 

 

 

 

 

FIFO.

 

 

 

 

 

Note: This should not happen in a properly configured

 

 

 

 

 

 

system.

 

 

 

 

 

 

 

D18

R/W1TC

ICRC

0

Invalid CRC

 

 

 

 

 

Indicates that a frame has been received with a CRC error.

 

 

 

 

 

 

 

D17

R/W1TC

VCRC

0

Valid CRC

 

 

 

 

 

Indicates that a frame has been received with a valid CRC.

 

 

 

 

 

 

 

D16

R/W1TC

RABORT

0

Receive abort error

 

 

 

 

 

Indicates that a frame has been received with an abort.

 

 

 

 

 

 

 

 

D15

N/A

Reserved

N/A

N/A

 

 

 

 

 

 

 

 

D14

R/W1TC

RXCLS

0

Software receive close

 

 

 

 

 

Indicates a software-initiated buffer close has completed.

 

 

 

 

 

 

 

 

D13:04

N/A

Reserved

N/A

N/A

 

 

 

 

 

 

 

 

D03

R/W1TC

TBC

0

Transmit buffer close

 

 

 

 

 

Indicates that transmission of the last byte in a transmit

 

 

 

 

 

buffer has completed.

 

 

 

 

 

 

 

D02

R/W1TC

RBC

0

Receive buffer close

 

 

 

 

 

Indicates that a HDLC receive buffer close condition has

 

 

 

 

 

occurred. These are HDLC receive buffer close events:

 

 

 

 

 

1

Receive overrun detected

 

 

 

 

 

2

Receive abort detected

 

 

 

 

 

3 Buffer closed due to invalid CRC

 

 

 

 

 

4 Buffer closed due to valid CRC

426Hardware Reference NS9215

Page 425 Page 427
Page 426
Image 426
Digi NS9215 manual Hdlc interrupt, Invalid CRC, Valid CRC, Receive abort error
Page 425 Page 427

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.
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