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Altera SoCAL
16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
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Current Host Descriptor Address Register
Register Layout
Bits | Access | Reset | Description |
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[31:0] | R | 0x0 | ALT_SDMMC_DSCADDR_HDA |
Field : hda | |
Host Descriptor Address Pointer. Cleared on reset. Pointer updated by IDMAC during operation. This register points to the start address of the current descriptor read by the IDMAC. Field Access Macros: | |
#define | ALT_SDMMC_DSCADDR_HDA_LSB 0 |
#define | ALT_SDMMC_DSCADDR_HDA_MSB 31 |
#define | ALT_SDMMC_DSCADDR_HDA_WIDTH 32 |
#define | ALT_SDMMC_DSCADDR_HDA_SET_MSK 0xffffffff |
#define | ALT_SDMMC_DSCADDR_HDA_CLR_MSK 0x00000000 |
#define | ALT_SDMMC_DSCADDR_HDA_RESET 0x0 |
#define | ALT_SDMMC_DSCADDR_HDA_GET(value) (((value) & 0xffffffff) >> 0) |
#define | ALT_SDMMC_DSCADDR_HDA_SET(value) (((value) << 0) & 0xffffffff) |
Data Structures | |
struct | ALT_SDMMC_DSCADDR_s |
Macros | |
#define | ALT_SDMMC_DSCADDR_RESET 0x00000000 |
#define | ALT_SDMMC_DSCADDR_OFST 0x94 |
Typedefs | |
typedef struct ALT_SDMMC_DSCADDR_s | ALT_SDMMC_DSCADDR_t |
struct ALT_SDMMC_DSCADDR_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_DSCADDR.
Data Fields | ||
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const uint32_t | hda: 32 | ALT_SDMMC_DSCADDR_HDA |
#define ALT_SDMMC_DSCADDR_HDA_LSB 0 |
The Least Significant Bit (LSB) position of the ALT_SDMMC_DSCADDR_HDA register field.
#define ALT_SDMMC_DSCADDR_HDA_MSB 31 |
The Most Significant Bit (MSB) position of the ALT_SDMMC_DSCADDR_HDA register field.
#define ALT_SDMMC_DSCADDR_HDA_WIDTH 32 |
The width in bits of the ALT_SDMMC_DSCADDR_HDA register field.
#define ALT_SDMMC_DSCADDR_HDA_SET_MSK 0xffffffff |
The mask used to set the ALT_SDMMC_DSCADDR_HDA register field value.
#define ALT_SDMMC_DSCADDR_HDA_CLR_MSK 0x00000000 |
The mask used to clear the ALT_SDMMC_DSCADDR_HDA register field value.
#define ALT_SDMMC_DSCADDR_HDA_RESET 0x0 |
The reset value of the ALT_SDMMC_DSCADDR_HDA register field.
#define ALT_SDMMC_DSCADDR_HDA_GET | ( | value | ) | (((value) & 0xffffffff) >> 0) |
Extracts the ALT_SDMMC_DSCADDR_HDA field value from a register.
#define ALT_SDMMC_DSCADDR_HDA_SET | ( | value | ) | (((value) << 0) & 0xffffffff) |
Produces a ALT_SDMMC_DSCADDR_HDA register field value suitable for setting the register.
#define ALT_SDMMC_DSCADDR_RESET 0x00000000 |
The reset value of the ALT_SDMMC_DSCADDR register.
#define ALT_SDMMC_DSCADDR_OFST 0x94 |
The byte offset of the ALT_SDMMC_DSCADDR register from the beginning of the component.
typedef struct ALT_SDMMC_DSCADDR_s ALT_SDMMC_DSCADDR_t |
The typedef declaration for register ALT_SDMMC_DSCADDR.