Cirrus Logic CS8952 - Manual (Page 35)

CS8952
CrystalLAN™ 100BASE-X and 10BASE-T Transceiver 35
DS206F1
6.3 PHY Identifier, Part 1 - Address 02h
15 14 13 12 11 10 9 8
Organizationally Unique Identifier: Bits[3:10]
7 6 5 4 3 2 1 0
Organizationally Unique Identifier: Bits[11:18]
BIT NAME TYPE RESET DESCRIPTION
15:0 Organizationally
Unique Identifier
(bits 3:18) Read/Write 001Ah This identifier is assigned to PHY manufacturers by
the IEEE. Its intention is to provide sufficient informa-
tion to support 10/100 Management as defined in
Clause 30.1.2 of the IEEE 802.3 specification.
This register contains bits [3:18] of the OUI. Bit 3 of
the OUI is located in bit 15 of the PHY Identifier, bit 4
of the OUI is in bit 14, and so on.
Note: This field is disabled, and writes to this bit are
ignored when the National Compatibility Mode bit of
the 10BASE-T Configuration Register (address 1Ch)
is set.