Регистры Allwinner H616
Сокращения  |  Дерево шин  |  Карта памяти
IOMMU_INT_STA_REG
3.12.5. IOMMU Interrupt Status Register - адрес: 0x30f0108 (смещение: 0x0108)

Модуль управления памятью ввода-вывода IOMMU: список регистров

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

  Unused

Bits 31 : 18

  L2_PAGE_TABLE_INVALID_STA

Bit 17
R
0x0

Level2 page table invalid interrupt status bit
0: Interrupt does not happen or interrupt is cleared
1: Interrupt happens

  L1_PAGE_TABLE_INVALID_STA

Bit 16
R
0x0

Level1 page table invalid interrupt status bit
0: Interrupt does not happen or interrupt is cleared
1: Interrupt happens

  Unused

Bits 15 : 7

  MICRO_TLB6_INVALID_STA

Bit 6
R
0x0

Micro TLB6 permission invalid interrupt status bit
0: Interrupt does not happen or interrupt is cleared
1: Interrupt happens

  MICRO_TLB5_INVALID_STA

Bit 5
R
0x0

Micro TLB5 permission invalid interrupt status bit
0: Interrupt does not happen or interrupt is cleared
1: Interrupt happens

  MICRO_TLB4_INVALID_STA

Bit 4
R
0x0

Micro TLB4 permission invalid interrupt status bit
0: Interrupt does not happen or interrupt is cleared
1: Interrupt happens

  MICRO_TLB3_INVALID_STA

Bit 3
R
0x0

Micro TLB3 permission invalid interrupt status bit
0: Interrupt does not happen or interrupt is cleared
1: Interrupt happens

  MICRO_TLB2_INVALID_STA

Bit 2
R
0x0

Micro TLB2 permission invalid interrupt status bit
0: Interrupt does not happen or interrupt is cleared
1: Interrupt happens

  MICRO_TLB1_INVALID_STA

Bit 1
R
0x0

Micro TLB1 permission invalid interrupt status bit
0: Interrupt does not happen or interrupt is cleared
1: Interrupt happens

  MICRO_TLB0_INVALID_STA

Bit 0
R
0x0

Micro TLB0 permission invalid interrupt status bit
0: Interrupt does not happen or interrupt is cleared
1: Interrupt happens

Команда U-Boot для чтения регистра

md 30f0108 1

Bit fields structure 

typedef union  iommu_int_sta_reg
{
  struct
  {
   unsigned micro_tlb0_invalid_sta : 1;
   unsigned micro_tlb1_invalid_sta : 1;
   unsigned micro_tlb2_invalid_sta : 1;
   unsigned micro_tlb3_invalid_sta : 1;
   unsigned micro_tlb4_invalid_sta : 1;
   unsigned micro_tlb5_invalid_sta : 1;
   unsigned micro_tlb6_invalid_sta : 1;
   unsigned unused0 : 9;
   unsigned l1_page_table_invalid_sta : 1;
   unsigned l2_page_table_invalid_sta : 1;
   unsigned unused1 : 14;
  } b;
   unsigned long w;
} IOMMU_INT_STA_REG
Allwinner H616 Manual