SNLS614A September 2018 – December 2018 DP83869HM
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The PHY Identifier Registers #1 and #2 together form a unique identifier for the DP83869. 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 esired. The PHY Identifier is intended to support network management. Texas Instruments' IEEE assigned OUI is 080028h.
OUI Most Significant Bits: Bits 3 to 18 of the OUI (080028h,) are stored in bits 15 to 0 of this register respectively. Bit numbering for OUI goes from 1 (MSB) to 24(LSB). The most significant two bits of the OUI are ignored (the IEEE standard refers to these as bits 1 and 2).