DP83TC812R-Q1: PHY becomes slave after TDR

Part Number: DP83TC812R-Q1

Tool/software:

Hi team,

In our project, the PHY is set as master.

But I found after performing TDR, the PHY is changed as slave.

Do I need to change it back to master by myself?

I followed the  "7.1 TDR Testing Procedure" in the document below to perform TDR.

snla389e.pdf

DP83TC812, DP83TC813, and DP83TC814: Configuring for Open Alliance Specification Compliance

Write
Reg[0x1834] = 0x8001
Reg[0x0523] = 0x0001
Reg[0x0827] = 0x4800
Reg[0x0301] = 0x1701
Reg[0x0303] = 0x023D
Reg[0x0305] = 0x0015
Reg[0x0831] = 0x3003
Reg[0x001F] = 0x4000
Reg[0x0523] = 0x0000
Reg[0x001F] = 0x0000
Reg[0x001E(15)] = 1

Best regards

Liu Jian