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Altera SoCAL
16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
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This register establishes the direction of each corresponding GPIO Data Field Bit.
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 Direction Field |
[31:29] | ??? | 0x0 | UNDEFINED |
Field : Port A Data Direction Field - gpio_swporta_ddr | ||||||||||
Values written to this register independently control the direction of the corresponding data bit in the Port A Data Register. Check the GPIO chapter in the handbook for details on how GPIO2 is implemented. Field Enumeration Values:
Field Access Macros: | ||||||||||
#define | ALT_GPIO_SWPORTA_DDR_GPIO_SWPORTA_DDR_E_IN 0x0 | |||||||||
#define | ALT_GPIO_SWPORTA_DDR_GPIO_SWPORTA_DDR_E_OUT 0x1 | |||||||||
#define | ALT_GPIO_SWPORTA_DDR_GPIO_SWPORTA_DDR_LSB 0 | |||||||||
#define | ALT_GPIO_SWPORTA_DDR_GPIO_SWPORTA_DDR_MSB 28 | |||||||||
#define | ALT_GPIO_SWPORTA_DDR_GPIO_SWPORTA_DDR_WIDTH 29 | |||||||||
#define | ALT_GPIO_SWPORTA_DDR_GPIO_SWPORTA_DDR_SET_MSK 0x1fffffff | |||||||||
#define | ALT_GPIO_SWPORTA_DDR_GPIO_SWPORTA_DDR_CLR_MSK 0xe0000000 | |||||||||
#define | ALT_GPIO_SWPORTA_DDR_GPIO_SWPORTA_DDR_RESET 0x0 | |||||||||
#define | ALT_GPIO_SWPORTA_DDR_GPIO_SWPORTA_DDR_GET(value) (((value) & 0x1fffffff) >> 0) | |||||||||
#define | ALT_GPIO_SWPORTA_DDR_GPIO_SWPORTA_DDR_SET(value) (((value) << 0) & 0x1fffffff) | |||||||||
Data Structures | |
struct | ALT_GPIO_SWPORTA_DDR_s |
Macros | |
#define | ALT_GPIO_SWPORTA_DDR_OFST 0x4 |
#define | ALT_GPIO_SWPORTA_DDR_ADDR(base) ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_GPIO_SWPORTA_DDR_OFST)) |
Typedefs | |
typedef struct ALT_GPIO_SWPORTA_DDR_s | ALT_GPIO_SWPORTA_DDR_t |
struct ALT_GPIO_SWPORTA_DDR_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_DDR.
Data Fields | ||
---|---|---|
uint32_t | gpio_swporta_ddr: 29 | Port A Data Direction Field |
uint32_t | __pad0__: 3 | UNDEFINED |
#define ALT_GPIO_SWPORTA_DDR_GPIO_SWPORTA_DDR_E_IN 0x0 |
Enumerated value for register field ALT_GPIO_SWPORTA_DDR_GPIO_SWPORTA_DDR
Input Direction
#define ALT_GPIO_SWPORTA_DDR_GPIO_SWPORTA_DDR_E_OUT 0x1 |
Enumerated value for register field ALT_GPIO_SWPORTA_DDR_GPIO_SWPORTA_DDR
Output Direction
#define ALT_GPIO_SWPORTA_DDR_GPIO_SWPORTA_DDR_LSB 0 |
The Least Significant Bit (LSB) position of the ALT_GPIO_SWPORTA_DDR_GPIO_SWPORTA_DDR register field.
#define ALT_GPIO_SWPORTA_DDR_GPIO_SWPORTA_DDR_MSB 28 |
The Most Significant Bit (MSB) position of the ALT_GPIO_SWPORTA_DDR_GPIO_SWPORTA_DDR register field.
#define ALT_GPIO_SWPORTA_DDR_GPIO_SWPORTA_DDR_WIDTH 29 |
The width in bits of the ALT_GPIO_SWPORTA_DDR_GPIO_SWPORTA_DDR register field.
#define ALT_GPIO_SWPORTA_DDR_GPIO_SWPORTA_DDR_SET_MSK 0x1fffffff |
The mask used to set the ALT_GPIO_SWPORTA_DDR_GPIO_SWPORTA_DDR register field value.
#define ALT_GPIO_SWPORTA_DDR_GPIO_SWPORTA_DDR_CLR_MSK 0xe0000000 |
The mask used to clear the ALT_GPIO_SWPORTA_DDR_GPIO_SWPORTA_DDR register field value.
#define ALT_GPIO_SWPORTA_DDR_GPIO_SWPORTA_DDR_RESET 0x0 |
The reset value of the ALT_GPIO_SWPORTA_DDR_GPIO_SWPORTA_DDR register field.
#define ALT_GPIO_SWPORTA_DDR_GPIO_SWPORTA_DDR_GET | ( | value | ) | (((value) & 0x1fffffff) >> 0) |
Extracts the ALT_GPIO_SWPORTA_DDR_GPIO_SWPORTA_DDR field value from a register.
#define ALT_GPIO_SWPORTA_DDR_GPIO_SWPORTA_DDR_SET | ( | value | ) | (((value) << 0) & 0x1fffffff) |
Produces a ALT_GPIO_SWPORTA_DDR_GPIO_SWPORTA_DDR register field value suitable for setting the register.
#define ALT_GPIO_SWPORTA_DDR_OFST 0x4 |
The byte offset of the ALT_GPIO_SWPORTA_DDR register from the beginning of the component.
#define ALT_GPIO_SWPORTA_DDR_ADDR | ( | base | ) | ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_GPIO_SWPORTA_DDR_OFST)) |
The address of the ALT_GPIO_SWPORTA_DDR register.
typedef struct ALT_GPIO_SWPORTA_DDR_s ALT_GPIO_SWPORTA_DDR_t |
The typedef declaration for register ALT_GPIO_SWPORTA_DDR.