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High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
Datasheet
SMSC LAN9312 221 Revision 1.4 (08-19-08)
DATASHEET
14.2.5.21 1588 Auxiliary MAC Address Low-DWORD Register (1588_AUX_MAC_LO)
This read/write register combined with the 1588 Auxiliary MAC Address High-WORD Register
(1588_AUX_MAC_HI) forms the 48-bit Auxiliary (user defined) MAC address. The Auxiliary MAC
address can be enabled for each port of the LAN9312 via their respective User Defined MAC Address
Enable bit in the 1588 Configuration Register (1588_CONFIG). Refer to Chapter 11, "IEEE 1588
Hardware Time Stamp Unit," on page 154 for additional information.
Offset: 190h Size: 32 bits
BITS DESCRIPTION TYPE DEFAULT
31:0 Auxiliary MAC Address Low (AUX_MAC_LO)
This field contains the low 32-bits of the Auxiliary MAC address used for
PTP packet detection.
R/W 00000000h