參數(shù)資料
型號: 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
文件頁數(shù): 37/74頁
文件大?。?/td> 1061K
代理商: LXT970A
Dual-Speed Fast Ethernet Transceiver
LXT970A
Datasheet
37
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
SFD
DA
DA
DA
DA
CRC
CRC
CRC
CRC
preamble
RX_CLK
RX_DV
RXD<3:0>
RX_ER
SFD
SFD
DA
DA
DA
XX
DA
DA
DA
DA
DA
DA
DA
DA
preamble
TX_CLK
TX_EN
TXD<3:0>
CRS
COL
P
R
E
A
M
B
L
E
DA
DA
DA
DA
DA
DA
DA
DA
DA
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
P
R
E
A
M
B
L
E
JAM
JAM
JAM
JAM
1. In half-duplex mode, CRS asserts when receive or transmit is active. In full-duplex mode, CRS asserts during receive only.
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