參數(shù)資料
型號(hào)： L84225
英文描述： L84225 100BaseTX/FX/10BaseT Physical Layer Device technical manual 4/02
中文描述： L84225 100BaseTX/FX/10BaseT物理層設(shè)備的技術(shù)手冊(cè)，4月2日
文件頁數(shù)： 17/118頁
文件大小： 890K
代理商： L84225
Functional Description
Copyright 1999-2002 by LSI Logic Corporation. All rights reserved.
17 of 118
April, 2002
Figure 3
MII Frame Format
PRMBLE
SFD
DATA 1
TXEN = 1
PREAMBLE =
SFD =
DATAn =
IDLE =
[ 1 0 1 0 ...] 62 Bits Long
[ 1 1 ]
[Between 64
1518 Data Bytes]
TXEN = 0
TXEN = 0
IDLE
PREAMBLE
Start of
Frame
DATA Nibbles
DATA 2
DATA N-1 DATA N
62 Bits
2 Bits
a. MII Frame Format
b. MII Nibble Order
D0
D1
D2
D3
D4
First Bit
MACs Serial Bit Stream
D5
D6
D7
LSB
TXD2/RXD2
TXD3/RXD3
TX_EN = 0
IDLE
MSB
Second
Nibble
TXD0/RXD0
TXD1/RXD1
First
Nibble
MII
Nibble
Stream
Signals
TXD0
TXD1
TXD2
TXD3
TXEN
1. 1st preamble nibble transmitted.
2. 1st SFD nibble transmitted.
3. 1st data nibble transmitted.
4. D0 thru D7 are the first 8 bits of the data field.
X
X
X
0
X
X
X
X
0
X
0
1
0
1
1
1
0
1
0
1
1
0
1
0
1
1
0
1
0
1
1
0
1
0
1
1
0
1
0
1
1
0
1
0
1
1
0
1
0
1
1
0
1
0
1
1
0
1
0
1
1
0
1
0
1
1
0
1
0
1
1
0
1
0
1
1
0
1
0
1
1
0
1
0
1
1
2
0
1
1
1
1
D1
D2
D3
1
D0
3
D5
D6
D7
1
D4
3
c. Transmit Preamble and SFD Bits
Signals
RXD1
RXD2
RXD3
RXDV
1. 1st preamble nibble received. Depending on mode, device may eliminate either all or some of the preamble
nibbles, up to 1st SFD nibble.
2. 1st SFD nibble received.
3. 1st data nibble received.
4. D0 thru D7 are the first 8 bits of the data field.
X
X
X
0
RXD0
X
X
X
X
0
X
0
1
0
1
1
1
0
1
0
1
1
0
1
0
1
1
0
1
0
1
1
0
1
0
1
1
0
1
0
1
1
0
1
0
1
1
0
1
0
1
1
0
1
0
1
1
0
1
0
1
1
0
1
0
1
1
0
1
0
1
1
0
1
0
1
1
0
1
0
1
1
0
1
0
1
1
2
0
1
1
1
1
D1
D2
D3
1
D0
3
D5
D6
D7
1
D4
3
d. Receive Preamble and SFD Bits
Bit Value
Bit Value
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L84225/B1 制造商:LSI Corporation 功能描述:
L8446-04 制造商:HAMAMATSU 制造商全稱:Hamamatsu Corporation 功能描述:CW LASER DIODES
L8446-06 制造商:HAMAMATSU 制造商全稱:Hamamatsu Corporation 功能描述:CW LASER DIODES
L8446-07 制造商:HAMAMATSU 制造商全稱:Hamamatsu Corporation 功能描述:CW LASER DIODES
L8446-41 制造商:HAMAMATSU 制造商全稱:Hamamatsu Corporation 功能描述:CW LASER DIODES
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