LAN9500 Datasheet, PDF (115/213 Pages) SMSC Corporation – USB 2.0 to 10/100 Ethernet Controller Promiscuous mode

LAN950x
FIGURE 6-2:
PME OPERATION
Host & Chipset Powered Off
VBUS_DET Set To 0 By EC
Or Via Circuitry
EC Sets PME_MODE_SEL = 1 And
Pulses PME_CLEAR Low
Device Has EEPROM With GPIO
PME Enable =1, Enters PME Mode
Wakeup Event Detected
By Device?
True
Device Asserts PME
False
EC Detects PME
EC To Wake System To
Process Wakeup Event?
No
EC Asserts PME_CLEAR
Device Resets And Deasserts PME
Yes
EC Signals Enable To Host
VBUS_DET Set to 1 By EC
Or Via Circuitry
EC Sets PME_MODE_SEL = 0 And
Asserts PME_CLEAR
Device Resets And Deasserts PME
Device Connects To USB Bus
Device Is In Normal Operation
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DS00001875A-page 115