Регистры Allwinner H616
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AC_DAC_DRC_LKE
8.4.5. DAC DRC Expander Slope Low Setting Register - адрес: 0x5096178 (смещение: 0x0178)

Аудиокодек: список регистров

  Unused

Bits 31 : 16

  SLOPE_EXPANDER

Bits 15 : 0
R/W
0x0000

The slope of the expander, which is determined by the equation that Ke = 1/R,
there, R is the ratio of the expander, which always is interger and the ke must
larger than 50. The format is 8.24. (The default value is <1:5>)

Команда U-Boot для чтения регистра

md 5096178 1

Bit fields structure 

typedef union  ac_dac_drc_lke
{
  struct
  {
   unsigned slope_expander : 16;
   unsigned unused0 : 16;
  } b;
   unsigned long w;
} AC_DAC_DRC_LKE
Allwinner H616 Manual