Cirrus Logic CS8952 - Manual (Page 39)

CS8952
CrystalLAN™ 100BASE-X and 10BASE-T Transceiver 39
DS206F1
6.7 Auto-Negotiation Expansion Register - Address 06h
15 14 13 12 11 10 9 8
Reserved
7 6 5 4 3 2 1 0
Reserved
Parallel
Detection Fault
Link Partner
Next Page
Able
Next Page
Able
Page Received
Link Partner
Auto-Neg Able
BIT NAME TYPE RESET DESCRIPTION
15:5 Reserved Read Only 000 0000 0000
4 Parallel Detection
Fault Read Only 0 When set, this bit indicates an error condition in
which both the 10BASE-T and 100BASE-TX links
came up valid, or that one of the technologies estab-
lished a link but was unable to maintain the link. This
bit is self-clearing.
3 Link Partner Next
Page Able Read Only 0 When set, this bit indicates that the link partner is
capable of Next Page exchange.
2 Next Page Able Read Only 1 This bit is a status bit which indicates to the Manage-
ment Layer that the CS8952 supports Next Page
capability.
Note: This bit is disabled, and writes to this bit are
ignored when the National Compatibility Mode bit of
the 10BASE-T Configuration Register (address 1Ch)
is set.
1 Page Received Read Only 0 When set, this bit indicates that a valid word of auto-
negotiation data has been received and its integrity
verified. The first page of data will consist of the Base
Page, and all successive pages will consist of Next
Page data. This bit is self-clearing.
0 Link Partner Auto-
Neg Able Read Only 0 When set, this bit indicates that the link partner has
auto-negotiation capability.