参数资料
型号: WJLXT971ALE.A4SE000
厂商: CORTINA SYSTEMS INC
元件分类: 网络接口
英文描述: DATACOM, ETHERNET TRANSCEIVER, PQFP64
封装: LEAD FREE, LQFP-64
文件页数: 50/116页
文件大小: 1172K
代理商: WJLXT971ALE.A4SE000
LXT971A 3.3V Dual-Speed Fast Ethernet Transceiver
Datasheet
39
Document #: 249414
Revision #: 002
Rev. Date: August 7, 2002
In the receive direction, the PCS layer performs the opposite function, substituting two preamble
nibbles for the SSD.
3.7.3.1.2 Dribble Bits
The LXT971A handles dribbles bits in all modes. If one to four dribble bits are received, the nibble
is passed across the MII, and padded with ones if necessary. If five to seven dribble bits are
received, the second nibble is not sent to the MII bus.
Figure 20. Protocol Sublayers
Encoder/Decoder
Serializer/De-serializer
Link/Carrier Detect
PCS
Sublayer
PMA
Sublayer
MII Interface
PECL Interface
Fiber Transceiver
LXT971A
100BASE-TX
100BASE-FX
Scrambler/
De-scrambler
PMD
Sublayer
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PDF描述
WJLXT971ALE.A4SE001 DATACOM, ETHERNET TRANSCEIVER, PQFP64
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