This sets the initial gain values

Although we know what the individual bits mean (see below for details), this function is always called with the values below.

Setting the Initial Gain

To initialize gains, an LNA value, an LNA attenuation value, a low-pass filter and three high-pass filter values are required.

1. Create the Gain Value as directed in these tables:

   PHY revision > 2
   Mask	Contents
   0x1C00	Third high-pass filter value
   0x0380	Second high-pass filter value
   0x0040	Lowest bit of low-pass filter value
   0x0038	First high-pass filter value
   0x0007	LNA value

   PHY revision <= 2
   Mask	Contents
   0x3800	Third high-pass filter value
   0x0700	Second high-pass filter value
   0x0080	Lowest bit of low-pass filter value
   0x0070	First high-pass filter value
   0x0008	Lowest bit of LNA attenuation value
   0x0007	LNA value

2. Create the LNA/HPF value according to this table:

   Mask	Contents
   0xF000	LNA attenuation value
   0x0E00	LNA value
   0x01C0	First high-pass filter value
   0x0038	Second high-pass filter value
   0x0007	Third high-pass filter value

3. Write the LNA/HPF value to OFDM Register 0x1C

4. If the Low Pass Filter value was 0

   1. AND OFDM Register 0x20 with 0xFF0F

5. Otherwise

   1. MaskSet OFDM Register 0x20 with mask 0xFF0F and set with 0x60

6. If the PHY Revision is 2 or less

   1. Write the Gain Value to OFDM Table 0xF, offset 0xC

   2. Write Gain Value to Radio Register 0x2

7. Otherwise

   1. Write the Gain Value to Radio Register 0x2