DS537 Datasheet, PDF (134/148 Pages) Xilinx, Inc – LogiCORE IP XPS LL TEMAC

LogiCORE IP XPS LL TEMAC (v2.03a)
Table 127: SGMII Management Status Register (Register 1) Bit Definitions (Cont’d)
Bit(s)
Name
Core Access
Reset
Value
Description
8 ^{Extended Status Returns 1}
1
Always returns a 1 for this bit indicating the presence of the
extended register (register 15).
7
Unidirectional
Ability
Returns 1
1
Always returns a 1.
6
MF Preamble
Suppression
Returns 1
1
Always returns a 1 for this bit to indicate the support of management
frame preamble suppression.
5
Auto Negotiation Read
Complete
0
0 - auto negotiation process not completed
1 - auto negotiation process complete
4 ^{Remote Fault}
Read only self
clearing on read
0
0 - no remote fault condition detected
1 - remote fault condition detected
3
Auto Negotiation Returns 1
Ability
1
Always returns a q for this bit indicating that the PHY is capable of
auto negotiation.
2 ^{Link Status}
Read only self
clearing on read
0
0 - PHY Link is down
1 - PHY Link is up
1 ^{Jabber Detect}
Returns 0
0
Always returns a 0 for this bit because no jabber detect is
supported.
0
Extended
Capability
Returns 0
0
Always returns a 0 for this bit because no extended register set is
supported.
Table 128 shows the first Hard TEMAC Internal SGMII PCS Management PHY Identifier Register bit definitions.
Table 128: SGMII Management PHY Identifier (Register 2) Bit Definitions
Bit(s)
Name
Core
Access
Reset Value
Description
0 - 15
OUI
Read
returns OUI (3-18) Organizationally Unique Identifier (OUI) from IEEE is 0x000A35.
0x0028
Table 129 shows the second Hard TEMAC Internal SGMII PCS Management PHY Identifier Register bit definitions.
Table 129: SGMII Management PHY Identifier (Register 3) Bit Definitions
Bit(s)
Name
Core
Access
Reset Value
Description
10 - 15
OUI
Read
returns OUI (19-24) Organizationally Unique Identifier (OUI) from IEEE is
0x0035
0x000A35.
30
MMN
Returns 0
0
Manufacturer’s Model Number. Always returns 0s.
29
Revision
Returns 0
0
Revision Number. Always returns 0s.
Table 130 shows the Hard TEMAC Internal SGMII PCS Management Auto Negotiation Advertisement Register bit
definitions.
Table 130: SGMII Management Auto Negotiation Advertisement Register (Register 4) Bit Definitions
Bit(s)
Name
Core Access Reset Value
Description
0 - 15
All bits
Read
0x0001 SGMII defined value sent from the MAC to the PHY.
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