LAN9303MI-AKZE Datasheet, PDF (187/386 Pages) SMSC Corporation – Small Form Factor Three Port 10/100 Managed Ethernet Switch with Dual MII/RMII/Turbo MII

Small Form Factor Three Port 10/100 Managed Ethernet Switch with Dual MII/RMII/Turbo MII
Datasheet
13.2.6.4 Virtual PHY Identification LSB Register (VPHY_ID_LSB)
Offset:
1CCh
Index (decimal): 3
Size:
32 bits
This read/write register contains the LSB of the Virtual PHY Organizationally Unique Identifier (OUI).
The MSB of the Virtual PHY OUI is contained in the Virtual PHY Identification MSB Register
(VPHY_ID_MSB).
BITS
DESCRIPTION
31:16
15:10
9:4
3:0
RESERVED
(See Note 13.28)
PHY ID
This field contains the lower 6-bits of the Virtual PHY OUI (Note 13.29).
Model Number
This field contains the 6-bit manufacturer’s model number of the Virtual PHY
(Note 13.29).
Revision Number
This field contain the 4-bit manufacturer’s revision number of the Virtual PHY
(Note 13.29).
TYPE
RO
R/W
R/W
R/W
DEFAULT
-
000000b
000000b
0000b
Note 13.28 The reserved bits 31-16 are used to pad the register to 32-bits so that each register is on
a DWORD boundary. When accessed serially (through the MII management protocol), the
register is 16-bits wide.
Note 13.29 IEEE allows a value of zero in each of the 32-bits of the PHY Identifier.
SMSC LAN9303M/LAN9303Mi
187
DATASHEET
Revision 1.5 (07-08-11)