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

Description

Register to control the amount of shift on enables

Register Layout

Bits Access Reset Description
[1:0] RW 0x0 ALT_SDMMC_EN_SHIFT_EN_SHIFT_CARD
[31:2] ??? 0x0 UNDEFINED

Field : enable_shift_card

Control for the amount of phase shift provided on the default

enables in the design. Two bits are assigned for each card/slot. For example, bits[1:0] control slot0 and indicate the following.

■ 00 Default phase shift

■ 01 Enables shifted to next immediate positive edge

■ 10 Enables shifted to next immediate negative edge

■ 11 Reserved

Field Access Macros:

#define ALT_SDMMC_EN_SHIFT_EN_SHIFT_CARD_LSB   0
 
#define ALT_SDMMC_EN_SHIFT_EN_SHIFT_CARD_MSB   1
 
#define ALT_SDMMC_EN_SHIFT_EN_SHIFT_CARD_WIDTH   2
 
#define ALT_SDMMC_EN_SHIFT_EN_SHIFT_CARD_SET_MSK   0x00000003
 
#define ALT_SDMMC_EN_SHIFT_EN_SHIFT_CARD_CLR_MSK   0xfffffffc
 
#define ALT_SDMMC_EN_SHIFT_EN_SHIFT_CARD_RESET   0x0
 
#define ALT_SDMMC_EN_SHIFT_EN_SHIFT_CARD_GET(value)   (((value) & 0x00000003) >> 0)
 
#define ALT_SDMMC_EN_SHIFT_EN_SHIFT_CARD_SET(value)   (((value) << 0) & 0x00000003)
 

Data Structures

struct  ALT_SDMMC_EN_SHIFT_s
 

Macros

#define ALT_SDMMC_EN_SHIFT_RESET   0x00000000
 
#define ALT_SDMMC_EN_SHIFT_OFST   0x110
 

Typedefs

typedef struct ALT_SDMMC_EN_SHIFT_s ALT_SDMMC_EN_SHIFT_t
 

Data Structure Documentation

struct ALT_SDMMC_EN_SHIFT_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_EN_SHIFT.

Data Fields
uint32_t enable_shift_card: 2 ALT_SDMMC_EN_SHIFT_EN_SHIFT_CARD
uint32_t __pad0__: 30 UNDEFINED

Macro Definitions

#define ALT_SDMMC_EN_SHIFT_EN_SHIFT_CARD_LSB   0

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

#define ALT_SDMMC_EN_SHIFT_EN_SHIFT_CARD_MSB   1

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

#define ALT_SDMMC_EN_SHIFT_EN_SHIFT_CARD_WIDTH   2

The width in bits of the ALT_SDMMC_EN_SHIFT_EN_SHIFT_CARD register field.

#define ALT_SDMMC_EN_SHIFT_EN_SHIFT_CARD_SET_MSK   0x00000003

The mask used to set the ALT_SDMMC_EN_SHIFT_EN_SHIFT_CARD register field value.

#define ALT_SDMMC_EN_SHIFT_EN_SHIFT_CARD_CLR_MSK   0xfffffffc

The mask used to clear the ALT_SDMMC_EN_SHIFT_EN_SHIFT_CARD register field value.

#define ALT_SDMMC_EN_SHIFT_EN_SHIFT_CARD_RESET   0x0

The reset value of the ALT_SDMMC_EN_SHIFT_EN_SHIFT_CARD register field.

#define ALT_SDMMC_EN_SHIFT_EN_SHIFT_CARD_GET (   value)    (((value) & 0x00000003) >> 0)

Extracts the ALT_SDMMC_EN_SHIFT_EN_SHIFT_CARD field value from a register.

#define ALT_SDMMC_EN_SHIFT_EN_SHIFT_CARD_SET (   value)    (((value) << 0) & 0x00000003)

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

#define ALT_SDMMC_EN_SHIFT_RESET   0x00000000

The reset value of the ALT_SDMMC_EN_SHIFT register.

#define ALT_SDMMC_EN_SHIFT_OFST   0x110

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

Typedef Documentation

The typedef declaration for register ALT_SDMMC_EN_SHIFT.