參數(shù)資料
型號: KSZ9021GQI
廠商: Micrel Inc
文件頁數(shù): 25/59頁
文件大?。?/td> 0K
描述: TXRX GIG ETH GMII/MII 128-PQFP
標準包裝: 66
類型: 收發(fā)器
驅動器/接收器數(shù): 8/8
規(guī)程: 千兆位以太網(wǎng)
電源電壓: 3.135 V ~ 3.465 V
安裝類型: 表面貼裝
封裝/外殼: 128-BFQFP
供應商設備封裝: 128-PQFP(14x20)
包裝: 托盤
其它名稱: 576-3790
Micrel, Inc.
KSZ9021GQ
September 2010
31
M9999-091010-1.2
6-LED Configuration
In this LED mode, all six LED pins are used. Pins LED2 and LED1 are dedicated for receive activity and transmit activity,
respectively, for all speeds.
LED pin
Pin State
LED
Definition
Description
H
OFF
10Base-T, Link off
LED6
L
ON
10Base-T, Link on
H
OFF
100Base-TX, Link off
LED5
L
ON
100Base-TX, Link on
H
OFF
1000Base-T, Link off
LED4
L
ON
1000Base-T, Link on
H
OFF
Half-duplex
L
ON
Full-duplex
LED3
Toggle
Blinking
Collision
H
OFF
No Receive Activity
L
ON
LED2
Toggle
Blinking
Receive Activity
H
OFF
No Transmit Activity
L
ON
LED1
Toggle
Blinking
Transmit Activity
Table 8. 6-LED Configuration – Pin Definition
Each LED output pin can directly drive a LED with a series resistor (typically 220 to 470).
For activity indication, the LED output toggles at approximately 12.5Hz (80ms) to ensure visibility to the human eye.
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