Xilinx LogiCORE 1000BASE-X User Manual page 142

R
Table 9-25: SGMII Auto-Negotiation Next Page Transmit (Register 7)
Register 8: SGMII Next Page Receive
Table 9-26: SGMII Auto-Negotiation Next Page Receive (Register 8)
142
Bit(s) Name
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: SGMII Next Page Receive
15 14 13 12 11
Reg 8
Bit(s) Name
8.15 Next Page
8.14 Acknowledge
8.13 Message Page
8.12 Acknowledge 2
8.11 Toggle
8.10:0 Message /
Unformatted
Code Field
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Chapter 9: Configuration and Status
Description
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
1 = Comply with message
0 = Cannot comply with message
Value toggles between subsequent
Next Pages
Message Code Field or Unformatted
Page Encoding as dictated by 8.13
Ethernet 1000BASE-X PCS/PMA or SGMII v9.1
Attributes Default Value
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
read only 0
read only 0
read only 00000000000
UG155 March 24, 2008