Altera SoCAL  16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
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Register : dscaddr

Description

Current Host Descriptor Address Register

Register Layout

Bits Access Reset Description
[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
 

Data Structure Documentation

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
const uint32_t hda: 32 ALT_SDMMC_DSCADDR_HDA

Macro Definitions

#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 Documentation

The typedef declaration for register ALT_SDMMC_DSCADDR.