Digi NS9215 manual Address A060 0A34, Address A060 0A38

Models: NS9215

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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_D Buffer Descriptor Pointer Offset register..

 

 

 

 

 

 

.

Register bit

 

 

 

 

 

 

assignment

Bits

Access

Mnemonic

Reset

Description

 

 

 

 

 

 

 

 

 

D31:11

N/A

Reserved

N/A

N/A

 

 

 

 

 

 

 

 

D10:00

R

RXCOFF

0x000

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

 

 

 

 

 

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. RXCOFF can be used to determine where

 

 

 

 

 

the RX_RD logic will put the next packet.

 

 

 

 

 

 

 

 

R X _ D 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 0A34

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

 

 

 

 

 

 

 

RXDOFF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Register bit

assignment

Bits

Access

Mnemonic

Reset

Description

 

 

 

 

 

 

 

D31:11

N/A

Reserved

N/A

N/A

 

 

 

 

 

 

 

D10:00

R

RXDOFF

0x000

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

 

 

 

 

 

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. RXDOFF can be used to determine where

 

 

 

 

 

the RX_RD logic will put the next packet.

 

 

 

 

 

 

T r a n s m i t 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 0A38

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Page 325
Image 325
Digi NS9215 manual Address A060 0A34, Address A060 0A38