DS537 Datasheet, PDF (129/148 Pages) Xilinx, Inc – LogiCORE IP XPS LL TEMAC

LogiCORE IP XPS LL TEMAC (v2.03a)
Table 117 shows the Hard TEMAC Internal 1000BASE-X PCS/PMA Management Auto Negotiation Advertisement
Register bit definitions.
Table 117: 1000BASE-X Management Auto Negotiation Advertisement Register (Register 4) Bit Definitions
Bit(s)
Name
Core Access
Reset
Value
Description
15
Next Page
Read/Write
0 - next page functionality is not advertised
0
1 - next page functionality is advertised
14
Reserved
Returns 0s
0 Always return zeros.
12 - 13 Remote Fault
Read/Write self
clearing after auto
negotiation
00 - no error
0x0 ^{01 - offline}
10 - link failure
11 - auto negotiation error
9 - 11 Reserved
Returns 0s
0x0 Always return zeros.
7-8
Pause
Read/write
00 - no pause
01 - asymmetric pause towards link partner
0x3 _{10 - symmetric pause}
11 - both symmetric pause and asymmetric pause towards link
partner
6
Half Duplex
Returns 0
0 Always return zeros because half duplex is not supported.
5
Full Duplex
Read/Write
1
0 - full duplex mode is not advertised
1 - full duplex mode is advertised
0 - 4 Reserved
Returns 0s
0x0 Always return zeros.
Table 118 shows the Hard TEMAC Internal 1000BASE-X PCS/PMA Management Auto negotiation Link Partner
Ability Base Register bit definitions.
Table 118: 1000BASE-X Management Auto negotiation Link Partner Ability Base Register (Register 5) Bit
Definitions
Bit(s)
Name
Core
Access
Reset
Value
Description
15
Next Page
Read
0
0 - next page functionality is not supported
1 - next page functionality is supported
14 Acknowledge Read
0
Used by the auto negotiation function to indicate reception of a link partner’s
base or next page.
12 - 13 Remote Fault Read/
00 - no error
0x0
01 - offline
10 - link failure
11 - auto negotiation error
9 - 11 Reserved Returns 0s 0x0 Always return zeros.
7-8
Pause
Read
00 - no pause
0x0
01 - asymmetric pause supported
10 - symmetric pause supported
11 - both symmetric pause and asymmetric pause supported
6
Half Duplex
Read
0 - half duplex mode is not supported
0 1 - half duplex mode is supported
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