Altera SoCAL  16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
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Register : Port A Data Register - gpio_swporta_dr

Description

This GPIO Data register is used to input or output data

Check the GPIO chapter in the handbook for details on how GPIO2 is implemented.

Register Layout

Bits Access Reset Description
[28:0] RW 0x0 Port A Data
[31:29] ??? 0x0 UNDEFINED

Field : Port A Data - gpio_swporta_dr

Values written to this register are output on the I/O signals of the GPIO Data Register, if the corresponding data direction bits for GPIO Data Direction Field are set to Output mode. The value read back is equal to the last value written to this register.

Check the GPIO chapter in the handbook for details on how GPIO2 is implemented.

Field Access Macros:

#define ALT_GPIO_SWPORTA_DR_GPIO_SWPORTA_DR_LSB   0
 
#define ALT_GPIO_SWPORTA_DR_GPIO_SWPORTA_DR_MSB   28
 
#define ALT_GPIO_SWPORTA_DR_GPIO_SWPORTA_DR_WIDTH   29
 
#define ALT_GPIO_SWPORTA_DR_GPIO_SWPORTA_DR_SET_MSK   0x1fffffff
 
#define ALT_GPIO_SWPORTA_DR_GPIO_SWPORTA_DR_CLR_MSK   0xe0000000
 
#define ALT_GPIO_SWPORTA_DR_GPIO_SWPORTA_DR_RESET   0x0
 
#define ALT_GPIO_SWPORTA_DR_GPIO_SWPORTA_DR_GET(value)   (((value) & 0x1fffffff) >> 0)
 
#define ALT_GPIO_SWPORTA_DR_GPIO_SWPORTA_DR_SET(value)   (((value) << 0) & 0x1fffffff)
 

Data Structures

struct  ALT_GPIO_SWPORTA_DR_s
 

Macros

#define ALT_GPIO_SWPORTA_DR_OFST   0x0
 
#define ALT_GPIO_SWPORTA_DR_ADDR(base)   ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_GPIO_SWPORTA_DR_OFST))
 

Typedefs

typedef struct
ALT_GPIO_SWPORTA_DR_s 
ALT_GPIO_SWPORTA_DR_t
 

Data Structure Documentation

struct ALT_GPIO_SWPORTA_DR_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_GPIO_SWPORTA_DR.

Data Fields
uint32_t gpio_swporta_dr: 29 Port A Data
uint32_t __pad0__: 3 UNDEFINED

Macro Definitions

#define ALT_GPIO_SWPORTA_DR_GPIO_SWPORTA_DR_LSB   0

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

#define ALT_GPIO_SWPORTA_DR_GPIO_SWPORTA_DR_MSB   28

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

#define ALT_GPIO_SWPORTA_DR_GPIO_SWPORTA_DR_WIDTH   29

The width in bits of the ALT_GPIO_SWPORTA_DR_GPIO_SWPORTA_DR register field.

#define ALT_GPIO_SWPORTA_DR_GPIO_SWPORTA_DR_SET_MSK   0x1fffffff

The mask used to set the ALT_GPIO_SWPORTA_DR_GPIO_SWPORTA_DR register field value.

#define ALT_GPIO_SWPORTA_DR_GPIO_SWPORTA_DR_CLR_MSK   0xe0000000

The mask used to clear the ALT_GPIO_SWPORTA_DR_GPIO_SWPORTA_DR register field value.

#define ALT_GPIO_SWPORTA_DR_GPIO_SWPORTA_DR_RESET   0x0

The reset value of the ALT_GPIO_SWPORTA_DR_GPIO_SWPORTA_DR register field.

#define ALT_GPIO_SWPORTA_DR_GPIO_SWPORTA_DR_GET (   value)    (((value) & 0x1fffffff) >> 0)

Extracts the ALT_GPIO_SWPORTA_DR_GPIO_SWPORTA_DR field value from a register.

#define ALT_GPIO_SWPORTA_DR_GPIO_SWPORTA_DR_SET (   value)    (((value) << 0) & 0x1fffffff)

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

#define ALT_GPIO_SWPORTA_DR_OFST   0x0

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

#define ALT_GPIO_SWPORTA_DR_ADDR (   base)    ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_GPIO_SWPORTA_DR_OFST))

The address of the ALT_GPIO_SWPORTA_DR register.

Typedef Documentation

The typedef declaration for register ALT_GPIO_SWPORTA_DR.