SMSC LAN9311 User Manual

Page of 460
Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface
Datasheet
Revision 1.4 (08-19-08)
276
SMSC LAN9311/LAN9311i
DATASHEET
 
14.3.3
Host MAC Address Low Register (HMAC_ADDRL)
This read/write register contains the lower 32-bits of the physical address of the Host MAC. The
contents of this register are optionally loaded from the EEPROM at power-on through the EEPROM
Loader if a programmed EEPROM is detected. The least significant byte of this register (bits [7:0]) is
loaded from address 01h of the EEPROM. The most significant byte of this register is loaded from
address 04h of the EEPROM. 
 details the byte ordering
of the HMAC_ADDRL and HMAC_ADDRH registers with respect to the reception of the Ethernet
physical address. Please refer to 
 for more information on the EEPROM Loader.
Offset:
3h
Size:
32 bits
BITS
DESCRIPTION
TYPE
DEFAULT
31:0
Physical Address [31:0]
This field contains the lower 32-bits (31:0) of the Physical Address of the 
Host MAC. The content of this field is undefined until loaded from the 
EEPROM at power-on. The host can update the contents of this field after 
the initialization process has completed.
R/W
FFFFFFFFh