RTL8201(L)
2002-01-18
Rev.1.04
13
5:<8> TXFD
100Base-TX-FD:
This bit indicates that the Link Partner can support
100Base-TX full duplex mode. This bit is cleared any time
Auto-negotiation is restarted or the RTL8201L is reset.
1: 100Base-TX full duplex is supported by link partner
0: 100Base-TX full duplex not supported by link partner
0, RO
5:<7> TX
100Base-TX:
This bit indicates that the Link Partner can support
100Base-TX half duplex mode. This bit is cleared any time
Auto-negotiation is restarted or the RTL8201L is reset.
1: 100Base-TX is supported by link partner
0: 100Base-TX not supported by link partner
This bit will also be set after the link in 100Base is established by
parallel detection and the RTL8201L Nway function is enabled but the
link partner does not support Nway.
1, RO
5:<6> 10FD
10Base-T-FD:
This bit indicates that the Link Partner can support
10Base-T full duplex mode. This bit is cleared any time
Auto-negotiation is restarted or the RTL8201L is reset.
1: 10Base-T full duplex is supported by link partner
0: 10Base-T full duplex not supported by link partner
0, RO
5:<5> 10
10Base-T:
This bit indicates that the Link Partner can support 10Base-T
half duplex mode. This bit is cleared any time Auto-negotiation is
restarted or the RTL8201L is reset.
1: 10Base-T is supported by link partner
0: 10Base-T not supported by link partner
This bit will also be set after the link in 10Base is established by parallel
detection and the RTL8201L Nway function is enabled but the link
partner does not support Nway.
0, RO
5:<4:0> Selector
Selector Field:
Bits 4:0 reflect the value of the Link Partner’s
selector field. These bits are cleared any time Auto-negotiation is
restarted or the chip is reset, and generally reflect the value of
<0001>, representing CSMA/CD, is specified, indicating that the
Link Partner is an 802.3 device.
<00000>, RO
Note that the values are only guaranteed to be valid once Auto-negotiation has successfully completed, as indicated by bit 5 of
the MII Status Register.
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