參數(shù)資料
型號： MX98746
英文描述： 100 Base-TX/FX 5-Port Class II Repeater Controller
中文描述： 100 Base-TX/FX 5 - II級中繼端口控制器
文件頁數(shù)： 29/36頁
文件大?。?/td> 166K
代理商： MX98746
29
MX98745
P/N:PM0427
REV. 1.4, JUL. 8, 1998
T25
TXCLK
T22
TXD[3:0]
TXEN
TXER
T24
Figure 9-3 Trannsmit Signal Timing Relationships at the MII
T21
T23
Symbol
T21
T22
23
T24
T25
Description
TXCLK Period (Note 1)
TXCLK High Time
TXCLK Low Time
TXD[3:0]/TXEN/TXER Setup Time to TXCLK rising edge (Note 2)
TXD[3:0]/TXEN/TXER Hold Time to TXCLK rising edge (Note 2)
MIN.
40
20
18
20
15
MAX.
40
-
-
-
-
UNIT
ns
ns
ns
ns
ns
Note 1 : The accurate TXCLK frequency shall be 25 MHz
+/- 50 ppm. In PCS type MII, this signal is
outputed by MX9745. In MAC type MII, this sig-
nal is input to MX98745.
Note 2 : The setup time of an MII signal relative to an MII
clock edge is defined as the length of time be-
tween when the signal exits and remains out of
the switching region and when the clock enters
the switching region. The hold time of an MII
signal relative to an MII clock edge is defined as
the length of time between when the clock exits
the switching region and when the signal enters
the switching region. (see section 22.3 in [1])
相關(guān)PDF資料
PDF描述
MX98747 10/100M 8PORT DUAL SPEED HUB CONTROLLER
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MX98747 制造商:未知廠家 制造商全稱:未知廠家 功能描述:10/100M 8PORT DUAL SPEED HUB CONTROLLER
MX98748 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Highly Intergated 10/100M Dual Speed Hub With Extra 4 Port Switch Built-In
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MX98902A(PQFP) 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LAN Node Controller
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