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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)： | 14/40頁 |
| 文件大小： | 546K |
| 代理商： | RTL8208 |
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RTL8208
2001/01/07
14
Rev.1.923
6.2 Register1: Status
Reg. bit
1.15
1.14
Name
100Base_T4
100Base_TX_FD
Description
0 = no 100Base-T4 capability.
1=100Base-TX full duplex capable.
0=Not 100Base-TX full duplex capable.
1=100Base-TX half duplex capable.
0=Not 100Base-TX half duplex capable.
1=10Base-TX full duplex capable.
0=Not 10Base-TX full duplex capable.
1=10Base-TX half duplex capable.
0=Not 10Base-TX half duplex capable.
The RTL8208 will accept management frames with
preamble suppressed.
1=Auto-negotiation process completed. Reg.4,5 are valid if
this bit is set.
0=Auto-negotiation process not completed.
1=Remote fault indication from link partner has been
detected.
0=No remote fault indication detected.
When in 100FX mode, this bit means in-band signal
Far-End-Fault is detected. Refer to FX MODE section.
1=Nway Auto-negotiation capable. (permanently =1)
0=Without Nway Auto-negotiation capability.
1=Link has never failed since previous read.
0=Link has failed since previous read.
If link fails, this bit will be set to 0 until bit is read.
1=Jabber detected.
0=No Jabber detected.
The jabber function is disabled in 100Base-X mode. Jabber
is supported only in 10Base-T mode.
1=Extended register capable. (permanently =1)
0=Not extended register capable.
Mode
RO
RO
Default
0
1
1.13
100Base_TX_HD
RO
1
1.12
10Base_T_FD
RO
1
1.11
10Base_T_HD
RO
1
1.[10:7]
1.6
Reserved
MF Preamble
Suppression
Auto-negotiate
Complete
RO
RO
0
1
1.5
RO
0
1.4
Remote Fault
RO/LH
0
1.3
Auto-Negotiation
Ability
Link Status
RO
1
1.2
RO/LL
0
1.1
Jabber Detect
RO/LH
0
1.0
Extended Capability
RO
1
100Base_T4
– The RTL8208 does not support the T4 function. Any reads to this bit will return a ‘0’.
100Base_TX_FD
– The RTL8208 is capable of operating in 100Base-TX full duplex mode.
100Base_TX_HD
– The RTL8208 is capable of operating in 100Base-TX half duplex mode.
10Base_T_FD
– The RTL8208 is capable of operating in 10Base-T full duplex mode.
10Base_T_HD
– The RTL8208 is capable of operating in 10Base-T half duplex mode.
Reserved
– Ignore the output of the RTL8208 when these bits are read.
MF Preamble Suppression
– Management Frame Preamble Suppression is permanently set in the RTL8208, allowing
subsequent MII management frames to be accepted with or without the standard preamble pattern. Only two preamble bits are
required between successive management commands, instead of the normal 32, however, a minimum of 32 preamble bits are
required for the first SMI read/write transaction after reset. One idle bit is required between any two management transactions (as
defined in IEEE802.3u spec). Reads of this bit will always return a ‘1’.
Auto-negotiate Complete
– Bit 5 will return a ‘1’ if the Auto-negotiation process has been completed and the contents of
registers 4 and 5 are valid.
Remote Fault
– When link partner detect far-end fault, it would send far-end indication stream pattern. When RTL8208 receive
this pattern, set Reg1.4=1.
Auto-Negotiation Ability
– The RTL8208 is capable of performing IEEE Auto-negotiation, and will return a ‘1’ when bit 4 is
read, regardless of whether or not the Auto-negotiation function has been disabled.
Link Status
– The RTL8208 will return a ‘1’ on bit 2 when the link state machine is in Link Pass, indicating that a valid link has
been established. Otherwise, it will return ‘0’. When a link failure occurs after the link pass state has been entered, the Link
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