LXT970ATC datasheet(57/74 Pages) INTEL

tên linh kiện	LXT970ATC

Giải thích chi tiết về linh kiện	Dual-Speed Fast Ethernet Transceiver

PDF	74 Pages

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nhà sản xuất	INTEL [Intel Corporation]

Trang chủ	http://www.intel.com

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Dual-Speed Fast Ethernet Transceiver — LXT970A

Datasheet

Figure 28. MII - 10BASE-T Receiving Timing

Table 37. MII - 10BASE-T Receive Timing Parameters

Parameter

Sym

Min

Typ

Max

Units2

RXD, RX_DV, RX_ER Setup to RX_CLK High

t7A

––

RXD, RX_DV, RX_ER Hold from RX_CLK High

t7B

––

TPI in to RXD out (Rx latency)

t7C

––

733

CRS asserted to RXD, RX_DV, RX_ER asserted

t7D

–

693

RXD, RX_DV, RX_ER de-asserted to CRS de-asserted

t7E

2.5 - 5.5

TPI in to CRS asserted

t7F

TPI quiet to CRS de-asserted

t7G

TPI in to COL asserted

t7H

TPI quiet to COL de-asserted

t7I

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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