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): 52/158頁
文件大?。?/td> 1084K
代理商: L80227
Draft 6/5/00
2-32
Functional Description
Copyright 1999 by LSI Logic Corporation. All rights reserved.
Table 2.7
shows the encoding of the output select bits.
2.3.13.2 LED Normal Function Select Bits
When the PLED[5:0] pins are programmed for their normal functions
(PLEDn_[1:0] = 0b11), the pin output states indicate four specific types
of events. The LED Normal Function select bits (LED_DEF[1:0]) in the
MI serial port Configuration register determine the states of the pins, as
indicated in
Table 2.8
and
Table 2.9
.
Table 2.7
PLEDn_[1:0] Output Select Bit Encoding
PLEDn_[1]
PLEDn_[0]
LED State
LED Pin
1
1
Normal
LED pin reflects the functions selected with the
LED_DEF[1:0] bits
1
0
LED Blink
LED output driver continuously toggles at a rate of
100 ms on, 100 ms off
0
1
LED On
LED output driver is LOW
0
0
LED Off
LED output driver is HIGH
Table 2.8
LED Normal Function Definition
LED_DEF[1:0]
PLED5n
PLED4n
PLED3n
PLED2n
PLED1n
PLED0n
0b11
RCV ACT
XMT ACT
LINK
COL
FDX
10/100
0b10
RCV ACT
XMT ACT
LINK
ACT
FDX
10/100
0b01
RCV ACT
XMT ACT
LINK + ACT
COL
FDX
10/100
0b00
1
RCV ACT
XMT ACT
LINK 100
ACT
FDX
LINK10
1. The L80227 powers up with the LED_DEF[1:0] bits set to the default value of 0b00.
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