Регистры Allwinner H616

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PG_DRV1
9.6.4. PG Multi-Driving Register 1 - адрес: 0x300b0f0 (смещение: 0x00F0)

Контроллер портов ввода-вывода (GPIO): список регистров



31 ||||||||||||||||| 16
15 ||||||||||||||||| 00

  Unused

Bits 31 : 8

  PG19_DRV

Bits 7 : 6
R/W
0x1

PG19 Multi-Driving Select
00: Level 0--180?
01: Level 1--120?
10: Level 2--100?
11: Level 3--50?


  PG18_DRV

Bits 5 : 4
R/W
0x1

PG18 Multi-Driving Select
00: Level 0
01: Level 1
10: Level 2
11: Level 3


  PG17_DRV

Bits 3 : 2
R/W
0x1

PG17 Multi-Driving Select
00: Level 0
01: Level 1
10: Level 2
11: Level 3


  PG16_DRV

Bits 1 : 0
R/W
0x1

PG16 Multi-Driving Select
00: Level 0
01: Level 1
10: Level 2
11: Level 3



Команда U-Boot для чтения регистра

md 300b0f0 1



Bit fields structure

typedef union  pg_drv1
{
  struct
  {
   unsigned pg16_drv : 2;
   unsigned pg17_drv : 2;
   unsigned pg18_drv : 2;
   unsigned pg19_drv : 2;
   unsigned unused0 : 24;
  } b;
   unsigned long w;
} PG_DRV1
   

Allwinner H616 Manual