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參數(shù)資料
| 型號： | RTL8208 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | REALTEK SINGLE CHIP OCTAL 10/100 MBPS FAST ETHERNET TRANSCEIVER |
| 中文描述： | 瑞昱單芯片八路10/100 Mbps快速以太網收發(fā)器 |
| 文件頁數(shù)： | 17/40頁 |
| 文件大?。?/td> | 546K |
| 代理商： | RTL8208 |
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RTL8208
2001/01/07
17
Rev.1.923
6.6 Register5: Auto-Negotiation Link Partner Ability
This register contains the advertised abilities of the Link Partner as received during Auto-negotiation. The content changes after
the successful Auto-negotiation.
Reg. bit
Name
Description
5.15
Next Page
1=Link partner desires Next Page transfer.
0=Link partner does not desire Next Page transfer.
5.14
Acknowledge
1=Link Partner acknowledges reception of FLP words.
0=No acknowledgement by Link Partner.
5.13
Remote Fault
1=Remote Fault indicated by Link Partner.
0=No remote fault indicated by Link Partner.
5.12-11
Reserved
5.10
Pause
1=Flow control supported by Link Partner.
0=No flow control supported by Link Partner.
When Nway is enabled, this bit reflects Link Partner ability. (read only)
In 100FX mode, this bit is set by FX_PAUSE or SMI.
5.9
100Base-T4
1=100Base-T4 supported by Link Partner.
0=100Base-T4 not supported by Link Partner.
5.8
100Base-TX-FD
1=100Base-TX full duplex supported by Link Partner.
0=100Base-TX full duplex not supported by Link Partner.
For 100FX mode, this bit is set when Reg.0.8=1 or
FX_DUPLEX =1.
When Nway is disabled, this bit is set when Reg.0.13=1 and
Reg.0.8=1.
5.7
100Base-TX
1=100Base-TX half duplex supported by Link Partner.
0=100Base-TX half duplex not supported by Link Partner.
For 100FX mode, this bit is set when Reg.0.8=0 or
FX_DUPLEX =0.
When Nway is disabled, this bit is set when Reg.0.13=1 and
Reg.0.8=0.
5.6
10Base-T-FD
1=10Base-TX full duplex supported by Link Partner.
0=10Base-TX full duplex not supported by Link Partner.
When Nway is disabled, this bit is set when Reg.0.13=0 and
Reg.0.8=1.
5.5
10Base-T
1=10Base-TX half duplex supported by Link Partner.
0=10Base-TX half duplex not supported by Link Partner.
When Nway disabled, this bit is set when Reg.0.13=0,and
Reg.0.8=0.
5.[4:0]
Selector Field
[00001]=IEEE802.3
Mode
RO
Default
0
RO
0
RO
0
RO
RW
0
0
RO
0
RO
0
RO
0
RO
0
RO
0
RO
00001
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.
Next Page
– Bit 15 returns a value of ‘1’ when the Link Partner implements the Next Page function and has Next Page
information that it wants to transmit. However, since the RTL8208 does not implement the Next Page function, it ignores the
Next Page bit, except to copy it to this register.
Acknowledge
– Bit 14 is used by Auto-negotiation to indicate that a device has successfully received its Link Partner’s Link
Code Word.
Remote Fault
– Bit 13 returns a value of ‘1’ when the Link Partner signals that it has detected a remote fault. The RTL8208
advertises this information, but does not act upon it.
Reserved
– Ignore the output of the RTL8208 when these bits are read.
Pause
– Indicates that the Link Partner pause bit is set.
100Base-T4
– Though the RTL8208 does not support the T4 function, this bit reflects this ability of the Link Partner.
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 RTL8208 is reset.
100Base-TX
– This bit indicates that the Link Partner can support 100Base-TX half duplex mode. This bit is cleared any time
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