參數(shù)資料
型號: L80227
廠商: LSI CORP
元件分類: 網(wǎng)絡(luò)接口
英文描述: 10BASE-T/100BASE-TX Ethernet Physical Layer Device (PHY)(10BASE-T/100BASE-TX 以太網(wǎng)物理層處理器)
中文描述: DATACOM, ETHERNET TRANSCEIVER, PQFP64
封裝: LQFP-64
文件頁數(shù): 144/158頁
文件大?。?/td> 1084K
代理商: L80227
Draft 6/5/00
A-10
Application Information
Copyright 1999 by LSI Logic Corporation. All rights reserved.
Figure A.4
MII Output Driver Characteristics
A.6.3 MII Disable
Setting the MII disable bit (MII_DIS) in the MI serial port Control register
places the MII outputs in the high-impedance state and the disables the
MII inputs. When this bit is set to the disable state, the TP outputs are
also disabled and transmission is inhibited. The default value of this bit
when the device powers up or is reset is dependent on the physical
device address. If the device address latched into MDA[3:0] at reset is
0b1111, it is assumed that the device is being used in applications where
there maybe more than one device sharing the MII bus, such as in the
use of external PHYs or adapter cards. In this case, the device powers
up with the MII interface disabled. If the device address latched into
MDA[3:0] at reset is not 0b1111, it is assumed that the device is being
used in application where it is the only device on the MII bus, such as in
the use of hubs, so the device powers up with the MII interface enabled.
Voh
Vol
loh
lol
Rol
min
= 40 ohm
V
3
I
3
V
4
I
4
V
2
I
2
V
1
I
1
V
DD
Rol
min
= 40 ohm
I – V
I
1
, – V
1
I
2
, – V
2
I
3
, – V
3
I
4
, – V
4
I (mA)
20
4
4
43
V (Volts)
1.10
2.40
0.40
3.05
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L80227/B 制造商:LSI Corporation 功能描述: 制造商:LSI Corporation 功能描述:L80227/B
L80227/BI 制造商:LSI Corporation 功能描述:L80227/BI
L80227FR 制造商:LAUREL ELECTRONICS 功能描述:Laureate 1/8 DIN multi-function counter / timer, universal 85-264 Vac power, two
L80227-I 制造商:LSI Corporation 功能描述:STD CELL ASIC
L80227-I-LEADFREE 制造商:LSI Corporation 功能描述:796000124413