DS537 Datasheet, PDF (135/148 Pages) Xilinx, Inc – LogiCORE IP XPS LL TEMAC

LogiCORE IP XPS LL TEMAC (v2.03a)
Table 131 shows the Hard TEMAC Internal SGMII PCS Management Auto negotiation Link Partner Ability Base
Register bit definitions.
Table 131: SGMII Management Auto negotiation Link Partner Ability Base Register (Register 5) Bit
Definitions
Bit(s)
Name
Core
Access
Reset
Value
Description
15 PHY Link Status Read
This refers to the link status of the external PHY device with its Link
Partner across the PHY Link.
1
0 - link down
1 - link up
14
Acknowledge
Read
0
Used by the auto negotiation function to indicate reception of a link
partner’s base or next page.
13
Reserved
Returns 0
0 Always return zero.
12
Duplex Mode
Read
The resolved duplex mode that the external PHY device has auto
negotiated with its Link Partner across the PHY Link.
0
0 - half duplex
1 - full duplex
10 - 11
Speed
Read
The resolved operating speed that the external PHY device has auto
negotiated with its Link Partner across the PHY Link.
00 - 10 Mb/S
0x0 _{01 - 100 Mb/S}
10 -1000 Mb/S
11 - Reserved
1-9
Reserved
Returns 0s 0x0 Always return zeros.
0
Reserved
Returns 1
1 Always return one.
Table 132 shows the Hard TEMAC Internal SGMII PCS Management Auto negotiation Expansion Register bit
definitions.
Table 132: 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 133 shows the Hard TEMAC Internal SGMII PCS Management Auto Negotiation Next Page Transmit
Register bit definitions.
Table 133: SGMII Management Auto Negotiation Next Page Transmit Register (Register 7) Bit Definitions
Bit(s)
Name
Core
Access
Reset Value
Description
15
Next Page
Read/write
0
0 - last page
1 - additional next page(s) will follow
14
Reserved
Returns 0s
0
Always return zeros.
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