SMSC LAN9420 - Manual (Page 123)

Single-Chip Ethernet Controller with HP Auto-MDIX Support and PCI Interface
Datasheet
SMSC LAN9420/LAN9420i 123 Revision 1.22 (09-25-08)
DATASHEET
4.4.2 MAC Address High Register (ADDRH)
This register contains the upper 16 bits of the physical address of the MAC, where ADDRH[15:8] is
the 6
th octet of the RX frame.
Offset: 0084h Size: 32 bits
BITS DESCRIPTION TYPE DEFAULT
31:16 RESERVED RO -
15-0 Physical Address [47:32]
This field contains the upper 16 bits (47:32) of the physical address of the
LAN9420/LAN9420i device. R/W FFFFh