Altera SoCAL  16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
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Register : Interrupt Mask Register - gpio_intmask

Description

Controls which pins cause interrupts on Port A Data Register inputs.

Register Layout

Bits Access Reset Description
[28:0] RW 0x0 Interrupt Mask Field
[31:29] ??? 0x0 UNDEFINED

Field : Interrupt Mask Field - gpio_intmask

Controls whether an interrupt on Port A Data Register can generate an interrupt to the interrupt controller by not masking it. The unmasked status can be read as well as the resultant status after masking.

Field Enumeration Values:

Enum Value Description
ALT_GPIO_INTMSK_GPIO_INTMSK_E_DIS 0x0 Interrupt bits are unmasked
ALT_GPIO_INTMSK_GPIO_INTMSK_E_EN 0x1 Mask Interrupt

Field Access Macros:

#define ALT_GPIO_INTMSK_GPIO_INTMSK_E_DIS   0x0
 
#define ALT_GPIO_INTMSK_GPIO_INTMSK_E_EN   0x1
 
#define ALT_GPIO_INTMSK_GPIO_INTMSK_LSB   0
 
#define ALT_GPIO_INTMSK_GPIO_INTMSK_MSB   28
 
#define ALT_GPIO_INTMSK_GPIO_INTMSK_WIDTH   29
 
#define ALT_GPIO_INTMSK_GPIO_INTMSK_SET_MSK   0x1fffffff
 
#define ALT_GPIO_INTMSK_GPIO_INTMSK_CLR_MSK   0xe0000000
 
#define ALT_GPIO_INTMSK_GPIO_INTMSK_RESET   0x0
 
#define ALT_GPIO_INTMSK_GPIO_INTMSK_GET(value)   (((value) & 0x1fffffff) >> 0)
 
#define ALT_GPIO_INTMSK_GPIO_INTMSK_SET(value)   (((value) << 0) & 0x1fffffff)
 

Data Structures

struct  ALT_GPIO_INTMSK_s
 

Macros

#define ALT_GPIO_INTMSK_OFST   0x34
 
#define ALT_GPIO_INTMSK_ADDR(base)   ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_GPIO_INTMSK_OFST))
 

Typedefs

typedef struct ALT_GPIO_INTMSK_s ALT_GPIO_INTMSK_t
 

Data Structure Documentation

struct ALT_GPIO_INTMSK_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_INTMSK.

Data Fields
uint32_t gpio_intmask: 29 Interrupt Mask Field
uint32_t __pad0__: 3 UNDEFINED

Macro Definitions

#define ALT_GPIO_INTMSK_GPIO_INTMSK_E_DIS   0x0

Enumerated value for register field ALT_GPIO_INTMSK_GPIO_INTMSK

Interrupt bits are unmasked

#define ALT_GPIO_INTMSK_GPIO_INTMSK_E_EN   0x1

Enumerated value for register field ALT_GPIO_INTMSK_GPIO_INTMSK

Mask Interrupt

#define ALT_GPIO_INTMSK_GPIO_INTMSK_LSB   0

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

#define ALT_GPIO_INTMSK_GPIO_INTMSK_MSB   28

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

#define ALT_GPIO_INTMSK_GPIO_INTMSK_WIDTH   29

The width in bits of the ALT_GPIO_INTMSK_GPIO_INTMSK register field.

#define ALT_GPIO_INTMSK_GPIO_INTMSK_SET_MSK   0x1fffffff

The mask used to set the ALT_GPIO_INTMSK_GPIO_INTMSK register field value.

#define ALT_GPIO_INTMSK_GPIO_INTMSK_CLR_MSK   0xe0000000

The mask used to clear the ALT_GPIO_INTMSK_GPIO_INTMSK register field value.

#define ALT_GPIO_INTMSK_GPIO_INTMSK_RESET   0x0

The reset value of the ALT_GPIO_INTMSK_GPIO_INTMSK register field.

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

Extracts the ALT_GPIO_INTMSK_GPIO_INTMSK field value from a register.

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

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

#define ALT_GPIO_INTMSK_OFST   0x34

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

#define ALT_GPIO_INTMSK_ADDR (   base)    ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_GPIO_INTMSK_OFST))

The address of the ALT_GPIO_INTMSK register.

Typedef Documentation

The typedef declaration for register ALT_GPIO_INTMSK.