Technical data

1.5.7 Auto Negotiation Link Partner Ability Register – Next Page
15 14 13 12 11 10 9 8 No. Initial value
Next
Page
Acknowle
dge
Message
Page
Acknowle
dge 2
Toggle Message/Unformatted Code
field
5 0000H
7 6 5 4 3 2 1 0
Message/Unformatted Code field
Table 25: Auto-Negotiation Link Partner Ability Register Overview – Next Page
Bit position Bit name R/W Function
15 Next Page R Next Page
Indicates if additional next page with link information will follow.
Next Page Next page indication
0
b
No additional next page will follow (initial value)
1
b
A
dditional next page will follo
w
14 Acknowl
edge
R
A
cknowledge
Indicates if the link partner’s link code word has been successfully received
Acknowledge Next page indication
0
b
Not successfully received the link partner’s link
code word (initial value)
1
b
Successfully received the link partner’s link code
word
13 Message
Page
R Message Page
Page type indication
Message Page Page type indication
0
b
Next page is an unformatted page (initial value)
1
b
Next page is a message page
12 Acknowl
edge 2
R
A
cknowledge 2
Indicates if device complies to message
Acknowledge 2 Message compliance indication
0
b
Device does not comply to message (initial value)
1
b
Device complies to message
11 Toggle R Toggle
Indicates, if the toggle bit of the previous page equalled 0
b
or 1
b
; this function
is used by the next page arbitration protocol.
Toggle Toggle bit indication
0
b
Toggle bit in the previously transmitted link code
word has been 1
b
(initial value)
1
b
Toggle bit in the previously transmitted link code
word has been 0
b
10:0 Message/
Unformatted
Code field
R Message/Unformatted Code field
Contains a message or unformatted 11-bit code word from the link partner
depending on the setting of the Message Page bit
Table 26: Auto-Negotiation Link Partner Ability Register Description – Next Page
Copyright © Siemens AG 2008. All rights reserved. Page 38 ERTEC 200 PHY
Technical data subject to change Version 1.0.0