AM79C978 Advanced Micro Devices, AM79C978 Datasheet - Page 194
AM79C978
Manufacturer Part Number
AM79C978
Description
Single-Chip 1/10 Mbps PCI Home Networking Controller
Manufacturer
Advanced Micro Devices
Datasheet
1.AM79C978.pdf
(261 pages)
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TBR6: 10BASE-T Auto-Negotiation Expansion
Register (Register 6)
The Auto-Negotiation Expansion Register provides ad-
ditional information which aids the Auto-Negotiation
TBR7: 10BASE-T Auto-Negotiation Next Page
Register (Register 7)
The Auto-Negotiation Next Page Register contains the
next page link code word to be transmitted. On power-
Reserved Registers (Registers 8-15, 18, 20-23, and
25-31)
The
served registers at addresses 8-15, 18, 20-23, and 25-
194
Bit(s)
Bit(s)
15:5
10:0
15
14
13
12
11
4
3
2
1
0
Am79C978 home networking
Link Partner ANEG
Parallel Detection
Link Partner Next
Next Page Able
Page Received
Acknowledge 2
Message Page
Message Field
Next Page
Page Able
Reserved
Reserved
Toggle
Name
Name
Table 72. TBR6: 10BASE-T Auto-Negotiation Expansion Register (Register 6)
Fault
Able
Table 73. TBR7: 10BASE-T Auto-Negotiation Next Page Register (Register 7)
1=Parallel detection fault
0=No parallel detection fault
1 = Link partner is next page able
0 = Link partner is not next page able
1 = Am79C978 home networking device channel is next page
able
0 = Am79C978 home networking device channel is not next page
able
1 = A new page has been received
0 = A new page has not been received
1 = Link partner is Auto-Negotiation able
0 = Link partner is not Auto-Negotiation able
Am79C978 home networking device channel next page request
Am79C978 home networking device channel message page
request
1 = Am79C978 home networking device channel can comply with
the request
0 = Am79C978 home networking device channel cannot comply
with the request
Am79C978 home networking device channel toggle bit
Message code field
device contains re-
Description
Description
Am79C978
process. The Auto-Negotiation Expansion Register bits
are Read Only. See Table 72.
up the default value of 2001h represents a message
page with the message code set to null. See Table 73.
31. These registers should be ignored when read and
should not be written at any time.
RO, LH
RO, LH
Read/
Read/
Write
Write
R/W
R/W
R/W
R/W
RO
RO
RO
RO
RO
RO
H/W or Soft
H/W or Soft
Reset
Reset
0x001
0
0
1
0
0
0
0
0
1
0
0
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