參數(shù)資料
型號(hào): 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): 67/158頁
文件大?。?/td> 1084K
代理商: L80227
Draft 6/5/00
Management Interface (MI)/LED Signals
Copyright 1999 by LSI Logic Corporation. All rights reserved.
3-5
3.3 Management Interface (MI)/LED Signals
MDC
MI Clock
The MDC clock shifts serial data for the internal registers
into and out of the MDIO pin on its rising edge.
I
MDA4n
Address 4 Input O.D.
During powerup or reset, this pin is high-impedance and
the level on this pin is latched in as the physical device
address MDA4 for the MI serial port
Pullup I
MDIO
MI Data
This bidirectional pin contains serial data for the internal
registers. The data on this pin is clocked in and out of the
device on the rising edge of MDC.
I/O
PLED3n/MDA3n
Programmable LED Output/MI Address Bit
Pullup O.D. I/O
The default function of this pin is to be a 100 Mbits/s Link
Detect output. This pin can also be programmed through
the MI serial port to indicate other events or be user con-
trolled. This pin can drive an LED from V
DD
.
When programmed as a 100 Mbits/s Link Detect Output
(default):
During powerup or reset, this pin is high-impedance and
the level on this pin is latched in as the physical device
address MDA3n for the MI serial port.
PLED2n/MDA2n
Programmable LED Output/MI Address Bit
Pullup O.D. I/O
The default function of this pin is to be an Activity Detect
output. This pin can also be programmed through the MI
serial port to indicate other events or be user controlled.
This pin can drive an LED from V
DD
.
PLED3n/MDA3n
Pin
HIGH
LOW
Function
No Link Detect
100 Mbits/s Link Detected
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