LAN9420 Datasheet, PDF (155/171 Pages) SMSC Corporation – Single-Chip Ethernet Controller with HP Auto-MDIX Support and PCI Interface

Single-Chip Ethernet Controller with HP Auto-MDIX Support and PCI Interface
Datasheet
BITS
DESCRIPTION
1:0 Power Management State (PM_STATE)
This field sets the current PM state.
00b = D0
01b = RESERVED
10b = RESERVED
11b = D3
Operations that attempt to write a RESERVED setting to this field will
complete normally on the PCI bus; however D[1:0] are ignored and no state
change occurs.
TYPE
R/W
DEFAULT
00b
Note 4.11 The default state of this field is dependant on the setting of the VAUXDET signal as noted
in the description.
SMSC LAN9420/LAN9420i
155
DATASHEET
Revision 1.6 (07-18-11)