am79c901a Advanced Micro Devices, am79c901a Datasheet - Page 49

• Manufacturer Part Number: am79c901a
• Description: Homephy Single-chip 1/10 Mbps Home Networking Phy
• Manufacturer: Advanced Micro Devices

HPR6: HomePNA PHY Auto-Negotiation Expansion Register (Register 6)
The Auto-Negotiation Expansion Register provides
additional information that aids the Auto-Negotiation
HPR7: HomePNA PHY Auto-Negotiation Next Page Register (Register 7)
The Auto-Negotiation Next Page Register contains
the next page link code word to be transmitted. On
Reserved Registers: HPR8 - HPR15
These registers should be ignored when read and
should not be written to at any time.
Bits
15:5
Bits
10:0
15
14
13
12
11
4
3
2
1
0
Reserved
Parallel Detection
Fault
Link Partner Next
Page Able
Next Page Able
Page Received
Link Partner Auto-
Negotiation Able
Next Page
Reserved
Message Page
Acknowledge 2
Toggle
Message Field
Table 24. HPR6: HomePNA PHY Auto-Negotiation Expansion Register (Register 6)
Table 25. HPR7: HomePNA PHY Auto-Negotiation Next Page Register (Register 7)
Name
Name
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 = Am79C901A device channel is next page able
0 = Am79C901A 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
Am79C901A device channel next page request
Am79C901A device channel message page request
1 = Am79C901A device channel can comply with the request
0 = Am79C901A device channel cannot comply with the
request
Am79C901A device channel toggle bit
Message code field
P R E L I M I N A R Y
Am79C901A
Description
Description
process. The Auto-Negotiation Expansion Register
bits are Read Only.
power-up the default value of 0x2001 represents a
message page with the message code set to null.
Read/Write
Read/Write
R
R
R
R
R
R
R
R
R
R
R
R
Default
Value
(hex)
Default
Value
(hex)
000
0
0
0
0
0
0
0
0
0
0
0
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