Регистры H616: Transferred Byte Count between Host Memory and Internal FIFO

SMHC_TBC1

5.3.5. Transferred Byte Count between Host Memory and Internal FIFO - адрес: 0x402004c 0x402104c 0x402204c (смещение: 0x004C)

Хост-контроллер SD / MMC (SMHC): список регистров

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

TBC1

Bits 31 : 0
R
0x0

Transferred Count 1
Number of bytes transferred between Host/DMA memory and internal

FIFO:
The register should be accessed in full to avoid read-coherency problems
and read only after data transfer completes.

Команда U-Boot для чтения регистра

md 402004c 1
md 402104c 1
md 402204c 1

Bit fields structure

typedef union smhc_tbc1 { struct { unsigned tbc1 : 32; } b; unsigned long w; } SMHC_TBC1

Allwinner H616 Manual