Altera SoCAL  16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
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Register : Card Threshold Control Register - cardthrctl

Description

See Field descriptions

Register Layout

Bits Access Reset Description
[0] RW 0x0 Card Read Threshold Enable
[15:1] ??? 0x0 UNDEFINED
[27:16] RW 0x0 Card Read Threshold
[31:28] ??? 0x0 UNDEFINED

Field : Card Read Threshold Enable - cardrdthren

Host Controller initiates Read Transfer only if CardRdThreshold amount of space is available in receive FIFO.

Field Enumeration Values:

Enum Value Description
ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_E_END 0x1 Card Read Threshold is enabled
ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_E_DISD 0x0 Card Read Threshold is disabled

Field Access Macros:

#define ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_E_END   0x1
 
#define ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_E_DISD   0x0
 
#define ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_LSB   0
 
#define ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_MSB   0
 
#define ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_WIDTH   1
 
#define ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_SET_MSK   0x00000001
 
#define ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_CLR_MSK   0xfffffffe
 
#define ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_RESET   0x0
 
#define ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_GET(value)   (((value) & 0x00000001) >> 0)
 
#define ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_SET(value)   (((value) << 0) & 0x00000001)
 

Field : Card Read Threshold - cardrdthreshold

Card Read Threshold size

Field Access Macros:

#define ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD_LSB   16
 
#define ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD_MSB   27
 
#define ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD_WIDTH   12
 
#define ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD_SET_MSK   0x0fff0000
 
#define ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD_CLR_MSK   0xf000ffff
 
#define ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD_RESET   0x0
 
#define ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD_GET(value)   (((value) & 0x0fff0000) >> 16)
 
#define ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD_SET(value)   (((value) << 16) & 0x0fff0000)
 

Data Structures

struct  ALT_SDMMC_CARDTHRCTL_s
 

Macros

#define ALT_SDMMC_CARDTHRCTL_OFST   0x100
 

Typedefs

typedef struct
ALT_SDMMC_CARDTHRCTL_s 
ALT_SDMMC_CARDTHRCTL_t
 

Data Structure Documentation

struct ALT_SDMMC_CARDTHRCTL_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_CARDTHRCTL.

Data Fields
uint32_t cardrdthren: 1 Card Read Threshold Enable
uint32_t __pad0__: 15 UNDEFINED
uint32_t cardrdthreshold: 12 Card Read Threshold
uint32_t __pad1__: 4 UNDEFINED

Macro Definitions

#define ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_E_END   0x1

Enumerated value for register field ALT_SDMMC_CARDTHRCTL_CARDRDTHREN

Card Read Threshold is enabled

#define ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_E_DISD   0x0

Enumerated value for register field ALT_SDMMC_CARDTHRCTL_CARDRDTHREN

Card Read Threshold is disabled

#define ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_LSB   0

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

#define ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_MSB   0

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

#define ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_WIDTH   1

The width in bits of the ALT_SDMMC_CARDTHRCTL_CARDRDTHREN register field.

#define ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_SET_MSK   0x00000001

The mask used to set the ALT_SDMMC_CARDTHRCTL_CARDRDTHREN register field value.

#define ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_CLR_MSK   0xfffffffe

The mask used to clear the ALT_SDMMC_CARDTHRCTL_CARDRDTHREN register field value.

#define ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_RESET   0x0

The reset value of the ALT_SDMMC_CARDTHRCTL_CARDRDTHREN register field.

#define ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_GET (   value)    (((value) & 0x00000001) >> 0)

Extracts the ALT_SDMMC_CARDTHRCTL_CARDRDTHREN field value from a register.

#define ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_SET (   value)    (((value) << 0) & 0x00000001)

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

#define ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD_LSB   16

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

#define ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD_MSB   27

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

#define ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD_WIDTH   12

The width in bits of the ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD register field.

#define ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD_SET_MSK   0x0fff0000

The mask used to set the ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD register field value.

#define ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD_CLR_MSK   0xf000ffff

The mask used to clear the ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD register field value.

#define ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD_RESET   0x0

The reset value of the ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD register field.

#define ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD_GET (   value)    (((value) & 0x0fff0000) >> 16)

Extracts the ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD field value from a register.

#define ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD_SET (   value)    (((value) << 16) & 0x0fff0000)

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

#define ALT_SDMMC_CARDTHRCTL_OFST   0x100

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

Typedef Documentation

The typedef declaration for register ALT_SDMMC_CARDTHRCTL.