AM79C973KCW Advanced Micro Devices, AM79C973KCW Datasheet - Page 199

• Manufacturer Part Number: AM79C973KCW
• Description: PCnet-FAST III Single-Chip 10/100 Mbps PCI Ethernet Controller with Integrated PHY
• Manufacturer: Advanced Micro Devices

ANR6: Auto-Negotiation Expansion Register
(Register 6)
The Auto-Negotiation Expansion Register provides ad-
ditional information which aids the Auto-Negotiation
ANR7: 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, 20-23, and 25-
31)
The
registers at addresses 8-15, 20-23, and 25-31. These
registers should be ignored when read and should not
be written at any time.
Bit(s)
Bit(s)
15:5
10:0
15
14
13
12
11
4
3
2
1
0
Am79C973/Am79C975
Link Partner ANEG
Parallel Detection
Link Partner Next
Next Page Able
Page Received
Acknowledge 2
Message Page
Message Field
Page Able
Next Page
Reserved
Reserved
Toggle
Name
Name
Fault
Able
Table 47. ANR6: Auto-Negotiation Expansion Register (Register 6)
Table 48. ANR7: 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 = Am79C973/Am79C975 device channel is next page able
0 = Am79C973/Am79C975 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.
Am79C973/Am79C975 device channel next page request.
Am79C973/Am79C975 device channel message page request
1 = Am79C973/Am79C975 device channel can comply with the
request
0 = Am79C973/Am79C975 device channel cannot comply with
the request
Am79C973/Am79C975 device channel toggle bit.
Message code field.
device contains reserved
P R E L I M I N A R Y
Am79C973/Am79C975
Description
Description
process. The Auto-Negotiation Expansion Register bits
are Read Only. See Table 47.
up the default value of 0x2001 represents a message
page with the message code set to null. See Table 48.
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
0
1
0
0
0
0
1
0
0
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