LXT970A datasheet(37/74 Pages) INTEL

номер детали	LXT970A

подробное описание детали	Dual-Speed Fast Ethernet Transceiver

PDF	74 Pages

Scroll/Zoom	100%

производитель	INTEL [Intel Corporation]

домашняя страница	http://www.intel.com

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37 / 74 page

Dual-Speed Fast Ethernet Transceiver — LXT970A

Datasheet

2.8.1.4

Collision Indication

Figure 18 shows normal transmission. The LXT970A detects a collision if transmit and receive are

active at the same time. As shown in Figure 19 upon detection of a collision, the COL output is

asserted and remains asserted for the duration of the collision.

Figure 16. 100BASE-TX Reception with No Errors

Figure 17. 00BASE-TX Reception with Invalid Symbol

Figure 18. 00BASE-TX Transmission with No Errors

Figure 19. 00BASE-TX Transmission with Collision

RX_CLK

RX_DV

RXD<3:0>

RX_ER

SFD

CRC

preamble

RX_CLK

RX_DV

RXD<3:0>

RX_ER

SFD

preamble

TX_CLK

TX_EN

TXD<3:0>

CRS

COL

1. In half-duplex mode, CRS asserts when receive or transmit are active. In full-duplex mode, CRS asserts during receive only.

TX_CLK

TX_EN

TXD<3:0>

CRS

COL

JAM

1. In half-duplex mode, CRS asserts when receive or transmit is active. In full-duplex mode, CRS asserts during receive only.

LXT970A датащи(PDF) 37 Page - Intel Corporation