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

Description

General Purpose Input/Output Register

Register Layout

Bits Access Reset Description
[7:0] R 0x0 ALT_SDMMC_GPIO_GPI
[23:8] RW 0x0 ALT_SDMMC_GPIO_GPO
[31:24] ??? 0x0 UNDEFINED

Field : gpi

Value on gpi input ports; this portion of register is read-only. Valid only when AREA_OPTIMIZED parameter is 0.

Field Access Macros:

#define ALT_SDMMC_GPIO_GPI_LSB   0
 
#define ALT_SDMMC_GPIO_GPI_MSB   7
 
#define ALT_SDMMC_GPIO_GPI_WIDTH   8
 
#define ALT_SDMMC_GPIO_GPI_SET_MSK   0x000000ff
 
#define ALT_SDMMC_GPIO_GPI_CLR_MSK   0xffffff00
 
#define ALT_SDMMC_GPIO_GPI_RESET   0x0
 
#define ALT_SDMMC_GPIO_GPI_GET(value)   (((value) & 0x000000ff) >> 0)
 
#define ALT_SDMMC_GPIO_GPI_SET(value)   (((value) << 0) & 0x000000ff)
 

Field : gpo

Value needed to be driven to gpo pins; this portion of register is read/write. Valid only when AREA_OPTIMIZED parameter is 0.

Field Access Macros:

#define ALT_SDMMC_GPIO_GPO_LSB   8
 
#define ALT_SDMMC_GPIO_GPO_MSB   23
 
#define ALT_SDMMC_GPIO_GPO_WIDTH   16
 
#define ALT_SDMMC_GPIO_GPO_SET_MSK   0x00ffff00
 
#define ALT_SDMMC_GPIO_GPO_CLR_MSK   0xff0000ff
 
#define ALT_SDMMC_GPIO_GPO_RESET   0x0
 
#define ALT_SDMMC_GPIO_GPO_GET(value)   (((value) & 0x00ffff00) >> 8)
 
#define ALT_SDMMC_GPIO_GPO_SET(value)   (((value) << 8) & 0x00ffff00)
 

Data Structures

struct  ALT_SDMMC_GPIO_s
 

Macros

#define ALT_SDMMC_GPIO_RESET   0x00000000
 
#define ALT_SDMMC_GPIO_OFST   0x58
 

Typedefs

typedef struct ALT_SDMMC_GPIO_s ALT_SDMMC_GPIO_t
 

Data Structure Documentation

struct ALT_SDMMC_GPIO_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_GPIO.

Data Fields
const uint32_t gpi: 8 ALT_SDMMC_GPIO_GPI
uint32_t gpo: 16 ALT_SDMMC_GPIO_GPO
uint32_t __pad0__: 8 UNDEFINED

Macro Definitions

#define ALT_SDMMC_GPIO_GPI_LSB   0

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

#define ALT_SDMMC_GPIO_GPI_MSB   7

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

#define ALT_SDMMC_GPIO_GPI_WIDTH   8

The width in bits of the ALT_SDMMC_GPIO_GPI register field.

#define ALT_SDMMC_GPIO_GPI_SET_MSK   0x000000ff

The mask used to set the ALT_SDMMC_GPIO_GPI register field value.

#define ALT_SDMMC_GPIO_GPI_CLR_MSK   0xffffff00

The mask used to clear the ALT_SDMMC_GPIO_GPI register field value.

#define ALT_SDMMC_GPIO_GPI_RESET   0x0

The reset value of the ALT_SDMMC_GPIO_GPI register field.

#define ALT_SDMMC_GPIO_GPI_GET (   value)    (((value) & 0x000000ff) >> 0)

Extracts the ALT_SDMMC_GPIO_GPI field value from a register.

#define ALT_SDMMC_GPIO_GPI_SET (   value)    (((value) << 0) & 0x000000ff)

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

#define ALT_SDMMC_GPIO_GPO_LSB   8

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

#define ALT_SDMMC_GPIO_GPO_MSB   23

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

#define ALT_SDMMC_GPIO_GPO_WIDTH   16

The width in bits of the ALT_SDMMC_GPIO_GPO register field.

#define ALT_SDMMC_GPIO_GPO_SET_MSK   0x00ffff00

The mask used to set the ALT_SDMMC_GPIO_GPO register field value.

#define ALT_SDMMC_GPIO_GPO_CLR_MSK   0xff0000ff

The mask used to clear the ALT_SDMMC_GPIO_GPO register field value.

#define ALT_SDMMC_GPIO_GPO_RESET   0x0

The reset value of the ALT_SDMMC_GPIO_GPO register field.

#define ALT_SDMMC_GPIO_GPO_GET (   value)    (((value) & 0x00ffff00) >> 8)

Extracts the ALT_SDMMC_GPIO_GPO field value from a register.

#define ALT_SDMMC_GPIO_GPO_SET (   value)    (((value) << 8) & 0x00ffff00)

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

#define ALT_SDMMC_GPIO_RESET   0x00000000

The reset value of the ALT_SDMMC_GPIO register.

#define ALT_SDMMC_GPIO_OFST   0x58

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

Typedef Documentation

The typedef declaration for register ALT_SDMMC_GPIO.