Datasheet

TLK110

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SLLS901D –DECEMBER 2011–REVISED JANUARY 2014

8.1.3 PHY Identifier Register 1 (PHYIDR1)

The PHY Identifier Registers 1 and 2 together form a unique identifier for the TLK110. 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 080028h, implemented as Reg 0x2 [15:0] = OUI[21:6] = 2000(h) and

Reg 0x3 [15:10] = OUI[5:0] = A(h).

Table 8-6. PHY Identifier Register 1 (PHYIDR1), address 0x0002

BIT BIT NAME DEFAULT DESCRIPTION

15:0 OUI_MSB 0010 0000 0000 0000, OUI[21:6] = 2000(h): The most significant two bits of the OUI are ignored (the IEEE

RO/P standard refers to these as bits 1 and 2).

8.1.4 PHY Identifier Register 2 (PHYIDR2)

Table 8-7. PHY Identifier Register 2 (PHYIDR2), address 0x0003

BIT BIT NAME DEFAULT DESCRIPTION

15:10 OUI_LSB 1010 00, RO/P OUI[5:0] = 28(h)

9:4 VNDR_MDL 10 0001, RO/P Vendor Model Number:

The six bits of vendor model number are mapped from bits 9 to 4 (most significant bit to bit 9).

3:0 MDL_REV 0001, RO/P Model Revision Number:

Four bits of the vendor model revision number are mapped from bits 3 to 0 (most significant bit to

bit 3). This field is incremented for all major device changes.

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