u16 N PHY Read LPF BW Ctl (u16 offset)
- Set lut_offset to 0
- If offset is 0
- If this is a 40 MHz channel
- Set lut_offset to 0x159
- Otherwise
- Set lut_offset to 0x154
- If this is a 40 MHz channel
- Otherwise
- Set lut_offset to offset
- Read N PHY Table with ID 7, length 1, offset lut_offset, width 16, and dat value
Return value & 7