SNLS638A December 2018 – August 2019 DP83825I
PHYIDR2_Register is shown in Table 16.
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PHY Identifier Register #2
Vendor Model Number: The six bits of vendor model number are mapped from bits  to 
Model Revision Number: Four bits of the vendor model revision number are mapped from bits [3:0]. This field is incremented for all major device changes.