Xilinx 1000BASE-X - Manual (Page 128)

128 www.xilinx.com Ethernet 1000BASE-X PCS/PMA or SGMII v9.1
UG155 March 24, 2008
Chapter 9: Configuration and Status R
Register 15: Extended Status
8.12 Acknowledge 2 1 = Comply with message
0 = Cannot comply with message
read only 0
8.11 Toggle Value toggles between subsequent
Next Pages read only 0
8.10:0 Message /
Unformatted
Code Field Message Code Field or Unformatted
Page Encoding as dictated by 8.13 read only 00000000000
Table 9-10: Auto-Negotiation Next Page Receive (Register 8) (Continued)
Bit(s) Name Description Attributes Default Value
MDIO Register 15: Extended Status Register
Table 9-11: Extended Status Register (Register 15)
Bit(s) Name Description Attributes Default Value
15.15 1000BASE-X
Full Duplex Always returns a ‘1’ for this bit since
1000BASE-X Full Duplex is
supported returns 1 1
15.14 1000BASE-X
Half Duplex Always returns a ‘0’ for this bit since
1000BASE-X Half Duplex is not
supported returns 0 0
15.13 1000BASE-T
Full Duplex Always returns a ‘0’ for this bit since
1000BASE-T Full Duplex is not
supported returns 0 0
15.12 1000BASE-T
Half Duplex Always returns a ‘0’ for this bit since
1000BASE-T Half Duplex is not
supported returns 0 0
15:11:0 Reserved Always return 0s returns 0s 000000000000
1000BASE-X FULL DUPLEX 1000BASE-X HALF DUPLEX 1000BASE-T FULL DUPLEX
15 14 13 12 11 0
Reg 15
RESER
VED
1000BASE-T HALF DUPLEX