EELXT905PC.C2 查看數據表（PDF） - Intel

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EELXT905PC.C2

Universal 10BASE-T Transceiver with 3.3V Support

Intel 

LXT905 — Universal 10BASE-T Transceiver with 3.3V Support

Figure 7. Link Integrity Test Function

Power On

Idle Test

Start_Link_Loss_Timer

Start_Link_Test_Min_Timer

Link_Loss_Timer_Done ∗

TPI=Idle ∗

Link_Test_Rcvd=False

TPI=Active +

(Link_Test_Rcvd=True ∗

Link_Test_Min_Timer_Done)

Link Test Fail Reset

Link_Count=0

XMIT=Disable

RCVR=Disable

LPBK=Disable

TPI=Active

Link_Test_Rcvd=False

∗ TPI=Idle

Link Test Fail Wait

XMIT=Disable

RCVR=Disable

LPBK=Disable

Link_Count=Link_Count + 1

TPI=Active

Link_Test_Rcvd=Idle

∗ TPI=Idle

TPI=Active +

Link_Count=LC_Max

Link Test Fail Extended

XMIT=Disable

RCVR=Disable

LPBK=Disable

TPI=Idle ∗

DO=Idle

Link Test Fail

Start_Link_Test_Min_Timer

Start_Link_Test_Max_Timer

XMIT=Disable

RCVR=Disable

LPBK=Disable

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)

16

Datasheet

Document #: 249271

Revision #: 002

Rev. Date: June 19, 2001

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