TBR6: 10BASE-T Auto-Negotiation Expansion
Register (Register 6)
process. The Auto-Negotiation Expansion Register bits
are Read Only. See Table 72.
The Auto-Negotiation Expansion Register provides ad-
ditional information which aids the Auto-Negotiation
Table 72. TBR6: 10BASE-T Auto-Negotiation Expansion Register (Register 6)
Read/
H/W or Soft
Reset
Bit(s)
Name
Description
Write
15:5
Reserved
RO
0
0
1=Parallel detection fault
Parallel Detection
Fault
4
3
RO, LH
0=No parallel detection fault
1 = Link partner is next page able
Link Partner Next
Page Able
RO
0
1
0 = Link partner is not next page able
1 = Am79C978 home networking device channel is next page
able
2
Next Page Able
RO
0 = Am79C978 home networking device channel is not next page
able
1 = A new page has been received
RO, LH
1
0
Page Received
0
0
0 = A new page has not been received
1 = Link partner is Auto-Negotiation able
0 = Link partner is not Auto-Negotiation able
LinkPartnerANEG
Able
RO
TBR7: 10BASE-T Auto-Negotiation Next Page
Register (Register 7)
up the default value of 2001h represents a message
page with the message code set to null. See Table 73.
The Auto-Negotiation Next Page Register contains the
next page link code word to be transmitted. On power-
Table 73. TBR7: 10BASE-T Auto-Negotiation Next Page Register (Register 7)
Read/
H/W or Soft
Reset
Bit(s)
15
Name
Description
Write
Next Page
Reserved
Am79C978 home networking device channel next page request
R/W
RO
0
0
14
Am79C978 home networking device channel message page
request
13
12
Message Page
R/W
1
1 = Am79C978 home networking device channel can comply with
the request
Acknowledge 2
R/W
0
0 = Am79C978 home networking device channel cannot comply
with the request
11
Toggle
Am79C978 home networking device channel toggle bit
Message code field
RO
0
10:0
Message Field
R/W
0x001
Reserved Registers (Registers 8-15, 18, 20-23, and
25-31)
31. These registers should be ignored when read and
should not be written at any time.
The Am79C978 home networking device contains re-
served registers at addresses 8-15, 18, 20-23, and 25-
194
Am79C978
AMD [ AMD ]
