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

. .

 

 

 

 

 

 

 

 

 

 

 

 

RX_A Buffer Descriptor Pointer Offset register..

 

 

 

 

 

 

 

.

Register bit

 

 

 

 

 

 

 

assignment

Bits

Access

Mnemonic

Reset

Description

 

 

 

 

 

 

 

 

 

 

D31:08

N/A

Reserved

N/A

N/A

 

 

 

 

 

 

 

 

 

D07:00

R

TXSPTR

0x00

If the TX runs out of frames to send, it sets TXIDLE in the

 

 

 

 

 

Ethernet Interrupt Status register and stores the pointer (in

 

 

 

 

 

the TX buffer descriptor RAM) to the buffer descriptor

 

 

 

 

 

that did not have its F bit set in the TX Stall Buffer

 

 

 

 

 

 

Descriptor Pointer register.

 

 

 

 

 

 

Note:

This pointer is the 8-bit physical address of the

 

 

 

 

 

 

TX buffer descriptor RAM, and points to the

 

 

 

 

 

 

first location of the four-location buffer

 

 

 

 

 

 

 

descriptor. The byte offset of this buffer

 

 

 

 

 

 

 

descriptor can be calculated by multiplying this

 

 

 

 

 

 

value by 4.

 

 

 

 

 

 

Note:

Software uses TXSPTR to identify the entry in

 

 

 

 

 

 

the TX buffer descriptor RAM at which the TX

 

 

 

 

 

 

stalled.

 

 

 

 

 

 

 

 

 

R X _ A B u f f e r D e s c r i p t o r P o i n t e r O f f s e t r e g i s t e r

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

Address: A060 0A28

Register

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

16

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Reserved

 

 

 

 

 

 

 

RXAOFF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Register bit

assignment

Bits

Access

Mnemonic

Reset

Description

 

 

 

 

 

 

 

D31:11

N/A

Reserved

N/A

N/A

 

 

 

 

 

 

 

D10:00

R

RXAOFF

0x000

Contains an 11-bit byte offset from the start of the pool A

 

 

 

 

 

ring. The offset is updated at the end of the RX packet,

 

 

 

 

 

and will have the offset to the next buffer descriptor that

 

 

 

 

 

will be used. RXAOFF can be used to determine where

 

 

 

 

 

the RX_RD logic will put the next packet.

 

 

 

 

 

 

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Digi NS9215 manual Address A060 0A28, Txsptr

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.

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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.

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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.