参数资料
型号: WJLXT908LC.A4
厂商: INTEL CORP
元件分类: 网络接口
英文描述: DATACOM, ETHERNET TRANSCEIVER, PQFP64
封装: ROHS COMPLIANT, LQFP-64
文件页数: 10/46页
文件大小: 618K
代理商: WJLXT908LC.A4
Intel
LXT908 Universal 3.3 V 10BASE-T and AUI Transceiver
18
Datasheet
Document #: 249049
Revision #: 003
Rev. Date: 29-Oct-2005
If no serial data stream or link integrity pulses are detected within 50 - 150 ms, the chip enters a
link fail state and disables the transmit and normal loopback functions. The Intel
LXT908
Universal 3.3 V 10BASE-T and AUI Transceiver ignores any link integrity pulse with interval less
than 2 - 7 ms. The Intel
LXT908 Universal 3.3 V 10BASE-T and AUI Transceiver will remain in
the link fail state until it detects either a serial data packet or two or more link integrity pulses.
Figure 8. Link Integrity Test Function
Idle Test
Start_Link_Loss_Timer
Start_Link_Test_Min_Timer
Power On
Link Test Fail Reset
Link_Count=0
XMIT=Disable
RCVR=Disable
LPBK=Disable
Link_Loss_Timer_Done
TPI=Idle
Link_Test_Rcvd=False
TPI=Active +
(Link_Test_Rcvd=True
Link_Test_Min_Timer_Done)
Link Test Fail Wait
XMIT=Disable
RCVR=Disable
LPBK=Disable
Link_Count=Link_Count + 1
Link Test Fail
Start_Link_Test_Min_Timer
Start_Link_Test_Max_Timer
XMIT=Disable
RCVR=Disable
LPBK=Disable
Link_Test_Rcvd=False
TPI=Idle
TPI=Active
Link_Test_Rcvd=Idle
TPI=Idle
Link Test Fail Extended
XMIT=Disable
RCVR=Disable
LPBK=Disable
TPI=Active +
Link_Count=LC_Max
Link_Test_Min_Timer_Done
Link_Test_Rcvd=True
(TPI=Idle
Link_Test_Max_Timer_Done) +
(Link_Test_Min_Timer_Not_Done
Link_Test_Rcvd=True)
TPI=Idle
DO=Idle
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