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

Description

Current Buffer Descriptor Address Register

Register Layout

Bits Access Reset Description
[31:0] R 0x0 ALT_SDMMC_BUFADDR_HBA

Field : hba

Host Buffer Address Pointer. Cleared on Reset. Pointer updated by IDMAC during operation. This register points to the current Data Buffer Address being accessed by the IDMAC.

Field Access Macros:

#define ALT_SDMMC_BUFADDR_HBA_LSB   0
 
#define ALT_SDMMC_BUFADDR_HBA_MSB   31
 
#define ALT_SDMMC_BUFADDR_HBA_WIDTH   32
 
#define ALT_SDMMC_BUFADDR_HBA_SET_MSK   0xffffffff
 
#define ALT_SDMMC_BUFADDR_HBA_CLR_MSK   0x00000000
 
#define ALT_SDMMC_BUFADDR_HBA_RESET   0x0
 
#define ALT_SDMMC_BUFADDR_HBA_GET(value)   (((value) & 0xffffffff) >> 0)
 
#define ALT_SDMMC_BUFADDR_HBA_SET(value)   (((value) << 0) & 0xffffffff)
 

Data Structures

struct  ALT_SDMMC_BUFADDR_s
 

Macros

#define ALT_SDMMC_BUFADDR_RESET   0x00000000
 
#define ALT_SDMMC_BUFADDR_OFST   0x98
 

Typedefs

typedef struct ALT_SDMMC_BUFADDR_s ALT_SDMMC_BUFADDR_t
 

Data Structure Documentation

struct ALT_SDMMC_BUFADDR_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_BUFADDR.

Data Fields
const uint32_t hba: 32 ALT_SDMMC_BUFADDR_HBA

Macro Definitions

#define ALT_SDMMC_BUFADDR_HBA_LSB   0

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

#define ALT_SDMMC_BUFADDR_HBA_MSB   31

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

#define ALT_SDMMC_BUFADDR_HBA_WIDTH   32

The width in bits of the ALT_SDMMC_BUFADDR_HBA register field.

#define ALT_SDMMC_BUFADDR_HBA_SET_MSK   0xffffffff

The mask used to set the ALT_SDMMC_BUFADDR_HBA register field value.

#define ALT_SDMMC_BUFADDR_HBA_CLR_MSK   0x00000000

The mask used to clear the ALT_SDMMC_BUFADDR_HBA register field value.

#define ALT_SDMMC_BUFADDR_HBA_RESET   0x0

The reset value of the ALT_SDMMC_BUFADDR_HBA register field.

#define ALT_SDMMC_BUFADDR_HBA_GET (   value)    (((value) & 0xffffffff) >> 0)

Extracts the ALT_SDMMC_BUFADDR_HBA field value from a register.

#define ALT_SDMMC_BUFADDR_HBA_SET (   value)    (((value) << 0) & 0xffffffff)

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

#define ALT_SDMMC_BUFADDR_RESET   0x00000000

The reset value of the ALT_SDMMC_BUFADDR register.

#define ALT_SDMMC_BUFADDR_OFST   0x98

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

Typedef Documentation

The typedef declaration for register ALT_SDMMC_BUFADDR.