Altera SoCAL  16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
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Register : Debounce Count Register - debnce

Description

Register Layout

Bits Access Reset Description
[23:0] RW 0xffffff Debounce Count
[31:24] ??? 0x0 UNDEFINED

Field : Debounce Count - debounce_count

Number of host clocks l4_mp_clk used by debounce filter logic; typical debounce time is 5-25 ms.

Field Access Macros:

#define ALT_SDMMC_DEBNCE_DEBOUNCE_COUNT_LSB   0
 
#define ALT_SDMMC_DEBNCE_DEBOUNCE_COUNT_MSB   23
 
#define ALT_SDMMC_DEBNCE_DEBOUNCE_COUNT_WIDTH   24
 
#define ALT_SDMMC_DEBNCE_DEBOUNCE_COUNT_SET_MSK   0x00ffffff
 
#define ALT_SDMMC_DEBNCE_DEBOUNCE_COUNT_CLR_MSK   0xff000000
 
#define ALT_SDMMC_DEBNCE_DEBOUNCE_COUNT_RESET   0xffffff
 
#define ALT_SDMMC_DEBNCE_DEBOUNCE_COUNT_GET(value)   (((value) & 0x00ffffff) >> 0)
 
#define ALT_SDMMC_DEBNCE_DEBOUNCE_COUNT_SET(value)   (((value) << 0) & 0x00ffffff)
 

Data Structures

struct  ALT_SDMMC_DEBNCE_s
 

Macros

#define ALT_SDMMC_DEBNCE_OFST   0x64
 

Typedefs

typedef struct ALT_SDMMC_DEBNCE_s ALT_SDMMC_DEBNCE_t
 

Data Structure Documentation

struct ALT_SDMMC_DEBNCE_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_DEBNCE.

Data Fields
uint32_t debounce_count: 24 Debounce Count
uint32_t __pad0__: 8 UNDEFINED

Macro Definitions

#define ALT_SDMMC_DEBNCE_DEBOUNCE_COUNT_LSB   0

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

#define ALT_SDMMC_DEBNCE_DEBOUNCE_COUNT_MSB   23

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

#define ALT_SDMMC_DEBNCE_DEBOUNCE_COUNT_WIDTH   24

The width in bits of the ALT_SDMMC_DEBNCE_DEBOUNCE_COUNT register field.

#define ALT_SDMMC_DEBNCE_DEBOUNCE_COUNT_SET_MSK   0x00ffffff

The mask used to set the ALT_SDMMC_DEBNCE_DEBOUNCE_COUNT register field value.

#define ALT_SDMMC_DEBNCE_DEBOUNCE_COUNT_CLR_MSK   0xff000000

The mask used to clear the ALT_SDMMC_DEBNCE_DEBOUNCE_COUNT register field value.

#define ALT_SDMMC_DEBNCE_DEBOUNCE_COUNT_RESET   0xffffff

The reset value of the ALT_SDMMC_DEBNCE_DEBOUNCE_COUNT register field.

#define ALT_SDMMC_DEBNCE_DEBOUNCE_COUNT_GET (   value)    (((value) & 0x00ffffff) >> 0)

Extracts the ALT_SDMMC_DEBNCE_DEBOUNCE_COUNT field value from a register.

#define ALT_SDMMC_DEBNCE_DEBOUNCE_COUNT_SET (   value)    (((value) << 0) & 0x00ffffff)

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

#define ALT_SDMMC_DEBNCE_OFST   0x64

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

Typedef Documentation

The typedef declaration for register ALT_SDMMC_DEBNCE.