LAN9313I SMSC [SMSC Corporation], LAN9313I Datasheet - Page 202
LAN9313I
Manufacturer Part Number
LAN9313I
Description
Three Port 10/100 Managed Ethernet Switch with MII
Manufacturer
SMSC [SMSC Corporation]
Datasheet
1.LAN9313I.pdf
(398 pages)
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Revision 1.2 (04-08-08)
13.1.5.7
BITS
31:0
EEPROM Address
Physical Address[31:0]
This field contains the lower 32-bits (31:0) of the physical address of the
Switch Fabric MACs.
Table 13.2 SWITCH_MAC_ADDRL, SWITCH_MAC_ADDRH, and EEPROM Byte Ordering
01h
02h
03h
04h
05h
06h
Switch Fabric MAC Address Low Register (SWITCH_MAC_ADDRL)
This register contains the lower 32-bits of the MAC address used by the switch for Pause frames. This
r e g i s t e r i s u s e d i n c o n j u n c t i o n w i t h
(SWITCH_MAC_ADDRH). 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
(bits [31:24]) is loaded from address 04h of the EEPROM. The Host can update the contents of this
field after the initialization process has completed.
Refer to
Table 13.2
registers with respect to the reception of the Ethernet physical address. Also shown is the correlation
between the EEPROM addresses and the SWITCH_MAC_ADDRL and SWITCH_MAC_ADDRH
registers.
F o r e x a m p l e , i f t h e d e s i r e d E t h e r n e t p h y s i c a l a d d r e s s i s 1 2 - 3 4 - 5 6 - 7 8 - 9 A - B C , t h e
SWITCH_MAC_ADDRL and SWITCH_MAC_ADDRH registers would be programmed as shown in
Figure
shown.
13.2. The values required to automatically load this configuration from the EEPROM are also
Offset:
Section 8.2.4, "EEPROM Loader," on page 113
illustrates the byte ordering of the SWITCH_MAC_ADDRL and SWITCH_MAC_ADDRH
SWITCH_MAC_ADDRL[23:16]
SWITCH_MAC_ADDRL[31:24]
SWITCH_MAC_ADDRH[15:8]
SWITCH_MAC_ADDRL[15:8]
SWITCH_MAC_ADDRH[7:0]
SWITCH_MAC_ADDRL[7:0]
Register Location Written
1F4h
DESCRIPTION
DATASHEET
202
S w i t c h F a b r i c M A C A d d r e s s H i g h R e g i s t e r
Size:
for information on using the EEPROM Loader.
Three Port 10/100 Managed Ethernet Switch with MII
32 bits
Order of Reception on Ethernet
TYPE
R/W
SMSC LAN9313/LAN9313i
2
3
4
5
6
1
nd
rd
st
th
th
th
FF0F8000h
DEFAULT
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