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LXT970ATC датащи(PDF) 57 Page - Intel Corporation

номер детали LXT970ATC
подробное описание детали  Dual-Speed Fast Ethernet Transceiver
PDF  74 Pages
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производитель  INTEL [Intel Corporation]
домашняя страница  http://www.intel.com
Logo INTEL - Intel Corporation

LXT970ATC датащи(HTML) 57 Page - Intel Corporation

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Dual-Speed Fast Ethernet Transceiver — LXT970A
Datasheet
57
Figure 28. MII - 10BASE-T Receiving Timing
Table 37. MII - 10BASE-T Receive Timing Parameters
Parameter
Sym
Min
Typ
1
Max
Units2
RXD, RX_DV, RX_ER Setup to RX_CLK High
t7A
10
––
ns
RXD, RX_DV, RX_ER Hold from RX_CLK High
t7B
10
––
ns
TPI in to RXD out (Rx latency)
t7C
––
733
BT
CRS asserted to RXD, RX_DV, RX_ER asserted
t7D
0
–
693
BT
RXD, RX_DV, RX_ER de-asserted to CRS de-asserted
t7E
0
2.5 - 5.5
6
BT
TPI in to CRS asserted
t7F
0
4
5
BT
TPI quiet to CRS de-asserted
t7G
0
18
19
BT
TPI in to COL asserted
t7H
0
4
5
BT
TPI quiet to COL de-asserted
t7I
0
18
19
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-
7 s or 100 ns.
3. CRS is asserted. RXD/RX_DV are driven at the start of SFD (64 BT).
RX_CLK
RXD,
RX_DV,
RX_ER
CRS
TPI
t7C
t7D
t7B
t7F
t7A
t7G
t7E
COL
t7H
t7I



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