BMAC BW Set (u8 bw)

1. Set fast to forcefastclk

2. If fast is zero

   1. Call Clock Control with 0 as argument

3. Set bw to bw

4. If Core Revision less than 17
   1. Do a dummy read of the MAC Control register

5. Call PHY BMAC Reset

6. Call PHY Init

7. If fast

   1. Call Clock Control with 2 as argument