DS537 Datasheet, PDF (105/148 Pages) Xilinx, Inc – LogiCORE IP XPS LL TEMAC

LogiCORE IP XPS LL TEMAC (v2.03a)
Table 80 shows the Hard TEMAC Internal SGMII PCS Management Auto negotiation Expansion Register bit
definitions.
Table 80: SGMII Management Auto Negotiation Expansion Register (Register 6) Bit Definitions
Bit(s)
Name
Core Access
Reset
Value
Description
3 - 15
Reserved
Returns 0s
0x0 Always return zeros.
2 Next Page Able
Returns 1
1 Always returns a 1 for this bit because the device is Next Page Able.
1
Page Received
Read self
clearing on read
0
0 - a new page is not received
1 - a new page is received
0
Reserved
Returns 0s
0 Always return zeros.
Table 81 shows the Hard TEMAC Internal SGMII PCS Management Auto Negotiation Next Page Transmit Register
bit definitions.
Table 81: SGMII Management Auto Negotiation Next Page Transmit Register (Register 7) Bit Definitions
Bit(s)
Name
Core
Access
Reset Value
Description
Next Page
15
Read/write
0 - last page
0
1 - additional next page(s) will follow
14 Reserved
Returns 0s
0
Always return zeros.
13 ^{Message Page}
Read/Write
1
0 - unformatted page
1 - message page
Acknowledge 2
12
Read/Write
0 - cannot comply with message
0
1 - complies with message
11 Toggle
Read
0
Value toggles between sequent pages.
0 -10
Message or unformatted
Code Field
Read/Write
0x001 (null
message code)
Message code field or unformatted page encoding as
dictated by bit 13.
Table 82 shows the Hard TEMAC Internal SGMII PCS Management Auto Negotiation Next Page Receive Register
bit definitions.
Table 82: SGMII Management Auto Negotiation Next Page Receive Register (Register 8) Bit Definitions
Bit(s)
Name
Core
Access
Reset Value
Description
15 ^{Next Page}
Read
0
0 - last page
1 - additional next page(s) will follow
14 ^Acknowledge
Read
0
Used by auto negotiation function to indicate reception of
a link partner’s base or next page.
13 ^{Message Page}
Read
0
0 - unformatted page
1 - message page
12 ^{Acknowledge 2}
Read
0
0 - cannot comply with message
1 - complies with message
11 Toggle
Read
0
Value toggles between sequent pages.
0 -10
Message or
unformatted Code Field
Read
0x0 (null
Message code field or unformatted page encoding as
message code) dictated by bit 13.
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