Register 74: Ethernet PHY Identifier Register 1 - MR2 (EPHYID1), address
0x002
The Ethernet PHY Identifier 1 and 2 (EPHYIDn) registers together form a unique identifier. The
identifier consists of a concatenation of the Organizationally Unique Identifier (OUI), the vendor's
model number and the model revision number. A PHY may return a value of zero in each of the 32
bits of the PHY Identifier if desired. The PHY Identifier is intended to support network management.
The Texas Instruments IEEE-assigned OUI is 0x080028. This OUI field is broken into two fields in
the EPHYID1 and EPHYID2 register. The most significant OUI field, OUIMSB in the EPHYID1 register,
is equal to 0x0002 (the two most significant bits of the OUI are ignored). The least significant OUI
field, OUILSB in the EPHYID2 register, is equal to 0x28.
Ethernet PHY Identifier Register 1 - MR2 (EPHYID1)
Base n/a
Address 0x002
Type R, reset 0x2000
0123456789101112131415
OUIMSB
ROROROROROROROROROROROROROROROROType
0000000000000100Reset
DescriptionResetTypeNameBit/Field
OUI Most Significant Bits
OUI[21:6] = 0x200. The most significant two bits of the OUI are ignored
(the IEEE standard refers to these as bits 1 and 2).
0x2000ROOUIMSB15:0
1595June 18, 2014
Texas Instruments-Production Data
Tiva
™
TM4C1294NCPDT Microcontroller
To Next Page
Loading...
Need help?
General
