參數(shù)資料
型號: LXT980QC
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): 72/96頁
文件大?。?/td> 1309K
代理商: LXT980QC
LXT980/980A Dual-Speed, 5-Port Fast Ethernet Repeater
72
Datasheet
Figure 35. 10BASE-T Transmit Timing - PHY Mode MII
Table 42. 10BASE-T Transmit Timing Parameters - PHY Mode MII
Parameter
Sym
t
10A
t
10B
t
10C
Min
Typ
1
Max
Units
2
Test Conditions
TXD, TX_EN, TX_ER Setup to TX_CLK High
10
ns
Note:
TXD, TX_EN, TX_ER Hold from TX_CLK High
5
ns
Note:
TX_EN sampled to CRS asserted
0
.9
2
BT
Note:
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 10BASE-T =
10
-7
s or 100 ns.
TX_CLK
TXD,
TX_EN,
TX_ER
CRS
t
10A
t
10B
t
10C
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