I / O H U B M O D U L E

[Module] DMA RX Buffer Descriptor Pointer

Register

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

16

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CE

CA

FLEX

DIRECT

 

 

 

 

Reserved

 

 

 

 

 

 

 

 

 

I/O

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

STATE

INDEX

Register bit

assignment

Bit(s)

Access

Mnemonic

Reset

Description

 

 

 

 

 

 

 

D31

R/W

CE

0x0

Channel enable

 

 

 

 

 

0

Disable DMA operation

 

 

 

 

 

1

Enable DMA operation

 

 

 

 

 

 

 

D30

R/W

CA

0x0

Channel abort

 

 

 

 

 

When set, causes the current DMA operation to

 

 

 

 

 

complete and closes the buffer. The DMA channel

 

 

 

 

 

remains idle until this bit is cleared.

 

 

 

 

 

 

 

 

D29

R/W

FLEX I/O

0x0

0

DMA controlled by CPU

 

 

 

 

 

1

DMA controlled by flexible I/O

 

 

 

 

 

This bit is valid only for channels 0 and 1, which

 

 

 

 

 

 

are assigned to flexible I/O module 0 and

 

 

 

 

 

 

flexible I/O module 1.

 

 

 

 

 

 

 

 

D28

R/W

DIRECT

0x0

0

DMA mode

 

 

 

 

 

1

Direct access mode

 

 

 

 

 

 

 

 

D27:16

N/A

Reserved

N/A

N/A

 

 

 

 

 

 

 

 

D15:10

R

STATE

0x0

DMA state machine status field

 

 

 

 

 

 

 

D09:00

R

INDEX

0x0

This field can be read at any time to determine the

 

 

 

 

 

current index.

 

 

 

 

 

 

 

[ M o d u l e ] D M A R X B u f f e r D e s c r i p t o r P o i n t e r

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Addresses: 9000_0008 / 9000_8008 / 9001_0008 / 9001_8008 / 9002_0008 / 9002_8008 / 9003_0008 / 9003_8008

The DMA RX Buffer Descriptor Pointer register is the address of the first buffer descriptor for each DMA channel.

376

Hardware Reference NS9215

31 March 2008

Page 376
Image 376
Digi NS9215 manual Channel abort, Flex I/O, Direct

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.