参数资料
型号: KSZ8051MLL TR
厂商: Micrel Inc
文件页数: 11/48页
文件大小: 0K
描述: TXRX PHY 10/T100 3.3V MII 48LQFP
标准包装: 1,000
类型: PHY 收发器
驱动器/接收器数: 1/1
规程: MII
电源电压: 1.8V,2.5V,3.3V
安装类型: 表面贴装
封装/外壳: 48-LQFP
供应商设备封装: 48-LQFP(7x7)
包装: 带卷 (TR)
配用: 576-3864-ND - BOARD EVALUATION FOR KSZ8051MLL
Micrel, Inc.
KSZ8051MLL
July 2010
19
M9999-071210-1.0
Back-to-Back Mode – 100Mbps Copper Repeater / Media Converter
Two KSZ8051MLL devices can be connected back-to-back to form a 100Base-TX to 100Base-TX copper repeater.
A KSZ8051MLL and a KSZ8041FTL can be connected back-to-back to provide a low-cost media converter solution.
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 3. KSZ8051MLL and KSZ8041FTL Back-to-Back Media Converter
MII Back-to-Back Mode (KSZ8051MLL only)
In MII Back-to-Back mode, a KSZ8051MLL interfaces with another KSZ8051MLL, or a KSZ8041FTL to provide a
complete 100Mbps copper repeater, or media converter solution, respectively.
The KSZ8051MLL devices are configured to MII Back-to-Back mode after power-up or reset with the following:
Strapping pin CONFIG[2:0] (pins 27, 41, 40) set to ‘110’
A common 25MHz reference clock connected to XI (pin 15)
MII signals connected as shown in Table 2.
KSZ8051MLL (100Base-TX copper)
[Device 1]
KSZ8051MLL (100Base-TX copper)
[Device 2]
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 2. MII Signal Connection for MII Back-to-Back Mode (100Base-TX Copper Repeater)
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