LAN9500 Datasheet, PDF (128/213 Pages) SMSC Corporation – USB 2.0 to 10/100 Ethernet Controller Promiscuous mode

LAN950x
Bits
Description
Type
2 Energy-Detect Enable (ED_EN)
R/W
Enables Energy-Detect as a wakeup event.
1:0 Wakeup Status (WUPS)
R/WC
This field indicates the cause of the current wakeup event. The WUPS field
(both bits) are cleared by writing a 1 to either, or both bits. The encoding of
these bits is as follows:
00 = No wakeup event detected
01 = Energy-Detect
10 = Wake-On-LAN / “Good Frame” (SUSPEND3) Note 7-10
11 = Indicates multiple events occurred
The WUPS field will not be set unless the corresponding event is enabled
prior to entering the reduced power state.
If the RES_CLR_WKP_STS bit is set, WUPS[1] will clear upon completion of
a resume. See the RES_CLR_WKP_STS bit for further details.
Note: It is not valid to simultaneously clear the WUPS bits and change the
contents of the Suspend Mode (SUSPEND_MODE) field.
Note 7-9
(LAN9500/LAN9500i ONLY): SUSPEND2
(LAN9500A/LAN9500Ai ONLY): SUSPEND3
Note 7-10 Good Frame and SUSPEND3 state are supported only by LAN9500A/LAN9500Ai.
Default
0b
00b
DS00001875A-page 128
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