參數(shù)資料
型號: LXT9880AHC
英文描述: Controller Miscellaneous - Datasheet Reference
中文描述: 控制器雜項-數(shù)據(jù)表參考
文件頁數(shù): 68/96頁
文件大小: 1309K
代理商: LXT9880AHC
LXT980/980A Dual-Speed, 5-Port Fast Ethernet Repeater
68
Datasheet
Figure 31. 100BASE-FX Transmit Timing - PHY Mode MII
Table 38. 100BASE-FX Transmit Timing Parameters - PHY Mode MII
Parameter
Sym
Min
Typ
1
Max
Units
2
Test Conditions
TXD, TX_EN, TX_ER Setup to TX_CLK
High
t
6A
10
ns
TXD, TX_EN, TX_ER Hold from TX_CLK
High
t
6B
t
6C
t
6D
t
6E
5
ns
TX_EN sampled to CRS asserted
0
4
BT
TX_EN sampled to CRS de-asserted
0
16
BT
TX_EN sampled to FIBOP/N out
(Tx latency)
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.
TX_CLK
TXD,
TX_EN,
TX_ER
CRS
FIBOP/N
t
6A
t
6B
t
6B
t
6D
t
6E
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