參數(shù)資料
型號(hào): MDS108AL
廠商: ZARLINK SEMICONDUCTOR INC
元件分類: 網(wǎng)絡(luò)接口
英文描述: MicroFit 3.0 Header Vert CPI 6 ckt 569
中文描述: DATACOM, LAN SWITCHING CIRCUIT, PQFP208
封裝: 28 X 28 MM, 3.32 MM HEIGHT, PLASTIC, MO-143, QFP-208
文件頁(yè)數(shù): 29/37頁(yè)
文件大?。?/td> 308K
代理商: MDS108AL
MDS108
Data Sheet
29
Zarlink Semiconductor Inc.
13.1 M8_REFCLK Speed Requirement
The M8_REFCLK pin can be either input or output pin depending on the Port 8 configuration.
As an output pin, its output frequency is always equal to half of the M_CLK
As an input, it provides a reference clock source to the Port 8 MAC when it is configured in speed-up mode
M8_REFCLK input frequency is equal to 25% of the Port 8 speed (data rate)
Port 8 Configuration
M8_REFCLK
Mode
Speed
Input/Output
Freq.
Reg.
10/100 M
Output
M_CLK/2
2x
200 M
Input
50 MHz
3x
300 M
Input
75 MHz
4x
400 M
Input
100 MHz
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