Datasheet

DP83849IF

SNOSAX8D –JUNE 2009–REVISED APRIL 2013

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The PHY Identifier Registers #1 and #2 together form a unique identifier for the DP83849IF. 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. TI's IEEE assigned

OUI is 080017h.

10.1.3 PHY Identifier Register #1 (PHYIDR1)

Table 10-5. PHY Identifier Register #1 (PHYIDR1), address 02h

Bit Bit Name Default Description

15:0 OUI_MSB <0010 0000 0000 OUI Most Significant Bits: Bits 3 to 18 of the OUI (080017h) are stored in bits 15

0000>, RO/P to 0 of this register. The most significant two bits of the OUI are ignored (the IEEE

standard refers to these as bits 1 and 2).

10.1.4 PHY Identifier Register #2 (PHYIDR2)

Table 10-6. PHY Identifier Register #2 (PHYIDR2), address 03h

Bit Bit Name Default Description

15:10 OUI_LSB <0101 11>, RO/P OUI Least Significant Bits:

Bits 19 to 24 of the OUI (080017h) are mapped from bits 15 to 10 of this register

respectively.

9:4 VNDR_MDL <00 1010>, 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 <0010>, 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 will be incremented for all major device changes.

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