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Altera SoCAL
16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
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Transferred Host to BIU-FIFO Byte Count Register
Register Layout
Bits | Access | Reset | Description |
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[31:0] | R | 0x0 | ALT_SDMMC_TBBCNT_TRANS_FIFO_BYTE_COUNT |
Field : trans_fifo_byte_count | |
Number of bytes transferred between Host/DMA memory and BIU FIFO. In 32-bit or 64-bit AMBA data-bus-width modes, register should be accessed in full to avoid read-coherency problems.In 16-bit AMBA data-bus-width mode, internal 16-bit coherency register is implemented. User should first read lower 16 bits and then higher 16 bits. When reading lower 16 bits, higher 16 bits of counter are stored in temporary register. When higher 16 bits are read, data from temporary register is supplied. Both TCBCNT and TBBCNT share same coherency register. Field Access Macros: | |
#define | ALT_SDMMC_TBBCNT_TRANS_FIFO_BYTE_COUNT_LSB 0 |
#define | ALT_SDMMC_TBBCNT_TRANS_FIFO_BYTE_COUNT_MSB 31 |
#define | ALT_SDMMC_TBBCNT_TRANS_FIFO_BYTE_COUNT_WIDTH 32 |
#define | ALT_SDMMC_TBBCNT_TRANS_FIFO_BYTE_COUNT_SET_MSK 0xffffffff |
#define | ALT_SDMMC_TBBCNT_TRANS_FIFO_BYTE_COUNT_CLR_MSK 0x00000000 |
#define | ALT_SDMMC_TBBCNT_TRANS_FIFO_BYTE_COUNT_RESET 0x0 |
#define | ALT_SDMMC_TBBCNT_TRANS_FIFO_BYTE_COUNT_GET(value) (((value) & 0xffffffff) >> 0) |
#define | ALT_SDMMC_TBBCNT_TRANS_FIFO_BYTE_COUNT_SET(value) (((value) << 0) & 0xffffffff) |
Data Structures | |
struct | ALT_SDMMC_TBBCNT_s |
Macros | |
#define | ALT_SDMMC_TBBCNT_RESET 0x00000000 |
#define | ALT_SDMMC_TBBCNT_OFST 0x60 |
Typedefs | |
typedef struct ALT_SDMMC_TBBCNT_s | ALT_SDMMC_TBBCNT_t |
struct ALT_SDMMC_TBBCNT_s |
WARNING: The C register and register group struct declarations are provided for convenience and illustrative purposes. They should, however, be used with caution as the C language standard provides no guarantees about the alignment or atomicity of device memory accesses. The recommended practice for writing hardware drivers is to use the SoCAL access macros and alt_read_word() and alt_write_word() functions.
The struct declaration for register ALT_SDMMC_TBBCNT.
Data Fields | ||
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const uint32_t | trans_fifo_byte_count: 32 | ALT_SDMMC_TBBCNT_TRANS_FIFO_BYTE_COUNT |
#define ALT_SDMMC_TBBCNT_TRANS_FIFO_BYTE_COUNT_LSB 0 |
The Least Significant Bit (LSB) position of the ALT_SDMMC_TBBCNT_TRANS_FIFO_BYTE_COUNT register field.
#define ALT_SDMMC_TBBCNT_TRANS_FIFO_BYTE_COUNT_MSB 31 |
The Most Significant Bit (MSB) position of the ALT_SDMMC_TBBCNT_TRANS_FIFO_BYTE_COUNT register field.
#define ALT_SDMMC_TBBCNT_TRANS_FIFO_BYTE_COUNT_WIDTH 32 |
The width in bits of the ALT_SDMMC_TBBCNT_TRANS_FIFO_BYTE_COUNT register field.
#define ALT_SDMMC_TBBCNT_TRANS_FIFO_BYTE_COUNT_SET_MSK 0xffffffff |
The mask used to set the ALT_SDMMC_TBBCNT_TRANS_FIFO_BYTE_COUNT register field value.
#define ALT_SDMMC_TBBCNT_TRANS_FIFO_BYTE_COUNT_CLR_MSK 0x00000000 |
The mask used to clear the ALT_SDMMC_TBBCNT_TRANS_FIFO_BYTE_COUNT register field value.
#define ALT_SDMMC_TBBCNT_TRANS_FIFO_BYTE_COUNT_RESET 0x0 |
The reset value of the ALT_SDMMC_TBBCNT_TRANS_FIFO_BYTE_COUNT register field.
#define ALT_SDMMC_TBBCNT_TRANS_FIFO_BYTE_COUNT_GET | ( | value | ) | (((value) & 0xffffffff) >> 0) |
Extracts the ALT_SDMMC_TBBCNT_TRANS_FIFO_BYTE_COUNT field value from a register.
#define ALT_SDMMC_TBBCNT_TRANS_FIFO_BYTE_COUNT_SET | ( | value | ) | (((value) << 0) & 0xffffffff) |
Produces a ALT_SDMMC_TBBCNT_TRANS_FIFO_BYTE_COUNT register field value suitable for setting the register.
#define ALT_SDMMC_TBBCNT_RESET 0x00000000 |
The reset value of the ALT_SDMMC_TBBCNT register.
#define ALT_SDMMC_TBBCNT_OFST 0x60 |
The byte offset of the ALT_SDMMC_TBBCNT register from the beginning of the component.
typedef struct ALT_SDMMC_TBBCNT_s ALT_SDMMC_TBBCNT_t |
The typedef declaration for register ALT_SDMMC_TBBCNT.