Altera SoCAL  16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
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Register : Descriptor List Base Address Register - dbaddr

Description

See Field Descriptor

Register Layout

Bits Access Reset Description
[1:0] ??? 0x0 UNDEFINED
[31:2] RW 0x0 Start of Descriptor List

Field : Start of Descriptor List - sdl

Contains the base address of the First Descriptor. This is the byte address divided by 4.

Field Access Macros:

#define ALT_SDMMC_DBADDR_SDL_LSB   2
 
#define ALT_SDMMC_DBADDR_SDL_MSB   31
 
#define ALT_SDMMC_DBADDR_SDL_WIDTH   30
 
#define ALT_SDMMC_DBADDR_SDL_SET_MSK   0xfffffffc
 
#define ALT_SDMMC_DBADDR_SDL_CLR_MSK   0x00000003
 
#define ALT_SDMMC_DBADDR_SDL_RESET   0x0
 
#define ALT_SDMMC_DBADDR_SDL_GET(value)   (((value) & 0xfffffffc) >> 2)
 
#define ALT_SDMMC_DBADDR_SDL_SET(value)   (((value) << 2) & 0xfffffffc)
 

Data Structures

struct  ALT_SDMMC_DBADDR_s
 

Macros

#define ALT_SDMMC_DBADDR_OFST   0x88
 

Typedefs

typedef struct ALT_SDMMC_DBADDR_s ALT_SDMMC_DBADDR_t
 

Data Structure Documentation

struct ALT_SDMMC_DBADDR_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_DBADDR.

Data Fields
uint32_t __pad0__: 2 UNDEFINED
uint32_t sdl: 30 Start of Descriptor List

Macro Definitions

#define ALT_SDMMC_DBADDR_SDL_LSB   2

The Least Significant Bit (LSB) position of the ALT_SDMMC_DBADDR_SDL register field.

#define ALT_SDMMC_DBADDR_SDL_MSB   31

The Most Significant Bit (MSB) position of the ALT_SDMMC_DBADDR_SDL register field.

#define ALT_SDMMC_DBADDR_SDL_WIDTH   30

The width in bits of the ALT_SDMMC_DBADDR_SDL register field.

#define ALT_SDMMC_DBADDR_SDL_SET_MSK   0xfffffffc

The mask used to set the ALT_SDMMC_DBADDR_SDL register field value.

#define ALT_SDMMC_DBADDR_SDL_CLR_MSK   0x00000003

The mask used to clear the ALT_SDMMC_DBADDR_SDL register field value.

#define ALT_SDMMC_DBADDR_SDL_RESET   0x0

The reset value of the ALT_SDMMC_DBADDR_SDL register field.

#define ALT_SDMMC_DBADDR_SDL_GET (   value)    (((value) & 0xfffffffc) >> 2)

Extracts the ALT_SDMMC_DBADDR_SDL field value from a register.

#define ALT_SDMMC_DBADDR_SDL_SET (   value)    (((value) << 2) & 0xfffffffc)

Produces a ALT_SDMMC_DBADDR_SDL register field value suitable for setting the register.

#define ALT_SDMMC_DBADDR_OFST   0x88

The byte offset of the ALT_SDMMC_DBADDR register from the beginning of the component.

Typedef Documentation

The typedef declaration for register ALT_SDMMC_DBADDR.