參數(shù)資料
型號: LXT980AHC
英文描述: LAN HUB CONTROLLER
中文描述: 局域網(wǎng)集線器控制器
文件頁數(shù): 66/96頁
文件大?。?/td> 1309K
代理商: LXT980AHC
LXT980/980A Dual-Speed, 5-Port Fast Ethernet Repeater
66
Datasheet
Figure 29. 100BASE-TX Transmit Timing - MAC Mode MII
Table 36. 100BASE-TX Transmit Timing Parameters - MAC Mode MII
Parameter
Sym
t
4A
t
4B
t
4C
t
4D
Min
Typ
1
Max
Units
2
Test Conditions
RXD, RX_DV, RX_ER Setup to RX_CLK High
10
ns
RXD, RX_DV, RX_ER Hold from RX_CLK High
5
ns
RXD sampled to TPO asserted
46
BT
RXD sampled to TPO de-asserted
46
BT
1. Typical values are at 25
°
C and are for design aid only; not guaranteed and not subject to production testing.
2. Bit Time (BT) is the duration of one bit as transferred to/from the MAC and is the reciprocal of bit rate. BT for 100BASE-T =
10
s or 10 ns.
RX_CLK
RXD,
RX_DV,
RX_ER
TPOP/N
t
4A
t
4B
t
4C
t
4D
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