DP83TC811R-Q1: DP83TC811 Boundary Scan

Hello, which pins of the DP83TC811 need to see which sequence to get in BSDL- Mode ?

The DS says :

Test Mode Select: Sequences the Tap Controller (16-state FSM) to select the desired test
instruction. TI recommends applying three clock cycles with TMS HIGH to reset JTAG.

Is this all to do ?

Does other pins require certain states ,like enable/reset etc ?

Is there a timing diagram available ?

Thanks and BR Ralf