參數(shù)資料
型號(hào): LXT970A
廠商: Intel Corp.
英文描述: Dual-Speed Fast Ethernet Transceiver
中文描述: 雙速度快速以太網(wǎng)收發(fā)器
文件頁(yè)數(shù): 58/74頁(yè)
文件大?。?/td> 1061K
代理商: LXT970A
LXT970A
Dual-Speed Fast Ethernet Transceiver
58
Datasheet
Figure 29. MII - 10BASE-T Transmit Timing
Table 38. MII - 10BASE-T Transmit Timing Parameters
Parameter
Sym
Min
Typ
1
Max
Units
2
TXD, TX_EN, TX_ER Setup to TX_CLK High
t8A
10
ns
TXD, TX_EN, TX_ER Hold from TX_CLK High
t8B
5
ns
TX_EN sampled to CRS asserted
t8C
0
4
BT
TX_EN sampled to CRS de-asserted
t8D
8
BT
TX_EN sampled to TPO out (Tx latency)
t8E
3 - 5
BT
1. Typical values are at 25
°
C and are for design aid only; not guaranteed and not subject to production testing.
2. BT is the duration of one bit as transferred to and from the MAC and is the reciprocal of the bit rate. 10BASE-T bit time = 10
-
s or 100 ns.
TX_CLK
TXD,
TX_EN,
TX_ER
CRS
TPO
t
8A
t
8C
t
8E
t
8D
t
8B
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