參數(shù)資料
型號: KSZ8041MLL TR
廠商: Micrel Inc
文件頁數(shù): 32/65頁
文件大?。?/td> 0K
描述: TXRX 10/100 3.3V PHY MII 48LQFP
標準包裝: 1,000
類型: 收發(fā)器
驅(qū)動器/接收器數(shù): 1/1
規(guī)程: MII
電源電壓: 3.135 V ~ 3.465 V
安裝類型: 表面貼裝
封裝/外殼: 48-TQFP
供應商設備封裝: 48-TQFP(7x7)
包裝: 帶卷 (TR)
Micrel, Inc.
KSZ8041TL/FTL/MLL
December 2009
38
M9999-120909-1.2
Back-to-Back Media Converter
A KSZ8041TL/MLL and a KSZ8041FTL can be connected back-to-back to provide a low cost media converter solution. In
back-to-back mode, media conversion is between 100Base-TX copper and 100Base-FX fiber. On the copper side, link up
at 10Base-T is not allowed, and is blocked during auto-negotiation.
Figure 10. KSZ8041TL/MLL and KSZ8041FTL Back-to-Back Media Converter
MII Back-to-Back Mode
In MII Back-to-Back mode, the KSZ8041TL/MLL interfaces with another KSZ8041TL/MLL, or a KSZ8041FTL to provide a
complete 100Mbps repeater or media converter solution. The KSZ8041TL/FTL/MLL devices are configured to MII Back-to-
Back mode after they are power-up or reset with the following:
x
CONFIGURATION[2:0] (pins 27, 41, 40) set to ‘110’
x
A common 25MHz reference clock connected to XI (pin 15)
x
MII signals connected as shown in the following table.
KSZ8041MLL (100Base-TX copper)
KSZ8041TL (100Base-TX copper)
KSZ8041MLL (100Base-TX copper)
KSZ8041TL (100Base-TX copper)
KSZ8041FTL (100Base-FX fiber)
Pin Name
Pin Number
Pin Type
Pin Name
Pin Number
Pin Type
RXC
28
Output
TXC
33
Input
RXDV
27
Output
TXEN
34
Input
RXD3
20
Output
TXD3
39
Input
RXD2
21
Output
TXD2
38
Input
RXD1
22
Output
TXD1
36
Input
RXD0
23
Output
TXD0
35
Input
TXC
33
Input
RXC
28
Output
TXEN
34
Input
RXDV
27
Output
TXD3
39
Input
RXD3
20
Output
TXD2
38
Input
RXD2
21
Output
TXD1
36
Input
RXD1
22
Output
TXD0
35
Input
RXD0
23
Output
Table 12. MII Signal Connection for MII Back-to-Back Mode
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