Digi NS9215 manual I M a n a g e m e n t a d d r e s s r e g i s t e r, Register bit

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

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MII Management Address register.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Register

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Reserved

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Reserved

 

 

 

 

 

 

SCAN

READ

 

Register bit

 

 

 

 

 

 

 

Note:

If both SCAN and READ are set, SCAN takes precedence.

 

 

 

 

 

assignment

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bits

 

Access

 

Mnemonic

Reset

 

Description

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D31:02

 

N/A

 

Reserved

 

N/A

 

N/A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D01

 

R/W

 

SCAN

 

0

 

Automatically scan for read data

 

 

 

 

 

 

 

 

 

 

 

 

Set to 1 to have the MII Management module perform

 

 

 

 

 

 

 

 

 

read cycles continuously. This is useful for

 

 

 

 

 

 

 

 

 

 

 

monitoring link fail, for example.

 

 

 

 

 

 

 

 

 

 

 

 

 

Note:

 

SCAN must transition from a 0 to a 1 to

 

 

 

 

 

 

 

 

 

 

 

initiate the continuous read cycles.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D00

 

R/W

 

READ

 

0

 

Single scan for read data

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Set to 1 to have the MII Management module perform

 

 

 

 

 

 

 

 

 

a single read cycle. The read data is returned in the

 

 

 

 

 

 

 

 

 

MII Management Read Data register after the BUSY

 

 

 

 

 

 

 

 

 

bit in the MII Management Indicators register has

 

 

 

 

 

 

 

 

 

returned to a value of 0.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note:

 

READ must transition from a 0 to a 1 to

 

 

 

 

 

 

 

 

 

 

 

initiate a single read cycle.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

M I I M a n a g e m e n t A d d r e s s r e g i s t e r

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Address: A060 0428

Register

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Reserved

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Reserved

 

 

 

DADR

 

 

 

Reserved

 

 

 

RADR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Digi NS9215 manual I M a n a g e m e n t a d d r e s s r e g i s t e r, Register bit, Automatically scan for read data