Xilinx LogiCORE 1000BASE-X User Manual page 127

Management Registers
Table 9-9: Auto-Negotiation Next Page Transmit (Register 7)
Register 8: Next Page Receive
Table 9-10: Auto-Negotiation Next Page Receive (Register 8)
Ethernet 1000BASE-X PCS/PMA or SGMII v9.1
UG155 March 24, 2008
Bit(s) Name
7.15 Next Page 1 = Additional Next Page(s) will follow
0 = Last page
7.14 Reserved Always returns '0'
7.13 Message 1 = Message Page
Page
0 = Unformatted Page
7.12 Acknowled 1 = Comply with message
ge 2
0 = Cannot comply with message
7.11 Toggle Value toggles between subsequent Next
Pages
7.10:0 Message / Message Code Field or Unformatted Page
Unformatte Encoding as dictated by 7.13
d Code
Field
MDIO Register 8: Next Page Receive
Reg 8
Bit(s) Name
8.15 Next Page
8.14 Acknowledge
8.13 Message Page
www.xilinx.com
Description
15 14 13 12 11 10
Description
1 = Additional Next Page(s) will
follow
0 = Last page
Used by Auto-Negotiation function
to indicate reception of a link
partner's base or next page
1 = Message Page
0 = Unformatted Page
R
Attributes Default Value
read/ 0
write
returns 0 0
read/ 1
write
read/ 0
write
read only 0
read/ 00000000001
write (Null
Message
Code)
0
Attributes Default Value
read only 0
read only 0
read only 0
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