Table 9-8 – Xilinx 1000BASE-X User Manual
Page 126
126
Ethernet 1000BASE-X PCS/PMA or SGMII v9.1
UG155 March 24, 2008
Chapter 9: Configuration and Status
R
Register 6: Auto-Negotiation Expansion
Register 7: Next Page Transmit
5.6
Half
Duplex
1 = Half Duplex Mode is supported
0 = Half Duplex Mode is not supported
read only
0
5.5
Full
Duplex
1 = Full Duplex Mode is supported
0 = Full Duplex Mode is not supported
read only
0
5.4:0
Reserved
Always return 0s
returns 0s
00000
Table 9-7:
Auto-Negotiation Link Partner Ability Base Register (Register 5)
Bit(s)
Name
Description
Attributes
Default
Value
MDIO Register 6: Auto-Negotiation Expansion
Table 9-8:
Auto-Negotiation Expansion Register (Register 6)
Bit(s)
Name
Description
Attributes
Default Value
6.15:3
Reserved
Always returns 0s
returns 0s
0000000000000
6.2
Next Page
Able
Always returns a ‘1’ for this bit
since the device is Next Page Able
returns 1
1
6.1
Page
Received
1 = A new page has been received
0 = A new page has not been
received
read only
self clearing on
read
0
6.0
Reserved
Always returns 0s
returns 0s
0000000
NEXT P
A
GE ABLE
P
A
GE RECEIVED
RESER
VED
15
0
Reg 6
RESER
VED
3
2
1
MDIO Register 7: Next Page Transmit
NEXT P
A
GE
RESER
VED
MESSA
GE P
A
GE
15 14 13 12 11
0
Reg 7
T
OGGLE
MESSA
GE CODE
A
CKNO
WLEDGE 2
10