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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(wǎng)收發(fā)器 |
| 文件頁數(shù)： | 16/40頁 |
| 文件大?。?/td> | 546K |
| 代理商： | RTL8208 |
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RTL8208
2001/01/07
16
Rev.1.923
6.5 Register4: Auto-Negotiation Advertisement
This register contains the advertisement abilities of this device as they will be transmitted to its Link Partner during
Auto-negotiation.
Reg. bit
Name
Description
4.15
Next Page
1=Next Page enabled.
0=Next Page disabled. (Permanently =0)
4.14
Acknowledge
Permanently =0.
4.13
Remote Fault
1=Advertises that RTL8208 has detected a remote fault.
0=No remote fault detected.
4.[12:11]
Reserved
4.10
Pause
1=Advertises that the RTL8208 has flow control capability.
0=Without flow control capability.
In 100FX mode, this bit is set by 100FX_PAUSE upon reset.
In 100/10TP mode, this bit is set by TP_PAUSE upon reset.
4.9
100Base-T4
1 = 100Base-T4 capable.
0 = Not 100Base-T4 capable. (Permanently =0)
4.8
100Base-TX-FD
1=100Base-TX full duplex capable.
0=Not 100Base-TX full duplex capable.
4.7
100Base-TX
1=100Base-TX half duplex capable.
0=Not 100Base-TX half duplex capable.
4.6
10Base-T-FD
1=10Base-TX full duplex capable.
0=Not 10Base-TX full duplex capable.
4.5
10Base-T
1=10Base-TX half duplex capable.
0=Not 10Base-TX half duplex capable.
4.[4:0]
Selector Field
[00001]=IEEE802.3
Next Page –
The RTL8208 does not implement the Next Page function, so bit 15 will always return a ‘0’ when read.
Mode
RO
Default
0
RO
RW
0
0
RO
RW
0
Set by
TP_PAUSE
Or
FX_PAUSE
0
RO
RW
1
RW
1
RW
1
RW
1
RO
00001
Acknowledge –
Because the Next Page function is not implemented, bit 14 will always return a ‘0’ when read.
Remote Fault –
When RTL8208 can not receive valid signal , set Reg4.13=1. The RTL8208 advertises this information to
inform link partner.
Reserved
– Ignore the output of the RTL8208 when these bits are read.
Pause
–Setting this bit indicates the availability of Flow Control capabilities when full duplex operation is in use. This bit is used
by one MAC to communicate Pause Capability to its Link Partner and has no effect on PHY operation.
100Base-T4
– Because the RTL8208 does not support the T4 function, any reads to this bit will return a ‘0’.
100Base-TX-FD
– This bit advertises the ability to the Link Partner that the RTL8208 can operate in 100Base-TX full duplex
mode. Writing a ‘0’ to this bit will suppress the transmission of this ability to the Link Partner. Resetting the chip will restore the
default value. The default value is ‘1’ and writing a ‘1’ will set this bit to ‘1’. Reading this bit will return the last written value or
the default value if no write has been completed since the last reset.
100Base-TX
– This bit advertises the ability to the Link Partner that the RTL8208 can operate in 100Base-TX half duplex mode.
Writing a ‘0’ to this bit will suppress the transmission of this ability to the Link Partner. Resetting the chip will restore the default
value. The default value is ‘1’ and writing a ‘1’ will set this bit to ‘1’. Reading this bit will return the last written value or the
default value if no write has been completed since the last reset.
10Base-T-FD
– This bit advertises the ability to the Link Partner that the RTL8208 can operate in 10Base-T full duplex mode.
Writing a ‘0’ to this bit will suppress the transmission of this ability to the Link Partner. Resetting the chip will restore the default
value. The default value is ‘1’ and writing a ‘1’ will set this bit to ‘1’. Reading this bit will return the last written value or the
default value if no write has been completed since the last reset.
10Base-T
– This bit advertises the ability to the Link Partner that the RTL8208 can operate in 10Base-T half duplex mode.
Writing a ‘0’ to this bit will suppress the transmission of this ability to the Link Partner. Resetting the chip will restore the default
value. The default value is ‘1’ and writing a ‘1’ will set this bit to ‘1’. Reading this bit will return the last written value or the
default value if no write has been completed since the last reset.
Selector Field
– Bits 4:0 contain a fixed value of 00001, indicating that the chip belongs to the 802.3 class of PHY transceivers.
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