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Altera SoCAL
16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
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Name: Port A external port register
Size: 1-32 bits
Address Offset: 0x50
Read/Write Access: Read
Register Layout
Bits | Access | Reset | Description |
---|---|---|---|
[23:0] | R | 0x0 | ALT_GPIO_EXT_PORTA_GPIO_EXT_PORTA |
[31:24] | ??? | 0x0 | UNDEFINED |
Field : gpio_ext_porta | |
When Port A is configured as Input, then reading this location reads the values on the signal. When the data direction of Port A is set as Output, reading this location reads the data register for Port A. Field Access Macros: | |
#define | ALT_GPIO_EXT_PORTA_GPIO_EXT_PORTA_LSB 0 |
#define | ALT_GPIO_EXT_PORTA_GPIO_EXT_PORTA_MSB 23 |
#define | ALT_GPIO_EXT_PORTA_GPIO_EXT_PORTA_WIDTH 24 |
#define | ALT_GPIO_EXT_PORTA_GPIO_EXT_PORTA_SET_MSK 0x00ffffff |
#define | ALT_GPIO_EXT_PORTA_GPIO_EXT_PORTA_CLR_MSK 0xff000000 |
#define | ALT_GPIO_EXT_PORTA_GPIO_EXT_PORTA_RESET 0x0 |
#define | ALT_GPIO_EXT_PORTA_GPIO_EXT_PORTA_GET(value) (((value) & 0x00ffffff) >> 0) |
#define | ALT_GPIO_EXT_PORTA_GPIO_EXT_PORTA_SET(value) (((value) << 0) & 0x00ffffff) |
Data Structures | |
struct | ALT_GPIO_EXT_PORTA_s |
Macros | |
#define | ALT_GPIO_EXT_PORTA_RESET 0x00000000 |
#define | ALT_GPIO_EXT_PORTA_OFST 0x50 |
#define | ALT_GPIO_EXT_PORTA_ADDR(base) ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_GPIO_EXT_PORTA_OFST)) |
Typedefs | |
typedef struct ALT_GPIO_EXT_PORTA_s | ALT_GPIO_EXT_PORTA_t |
struct ALT_GPIO_EXT_PORTA_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_EXT_PORTA.
Data Fields | ||
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const uint32_t | gpio_ext_porta: 24 | ALT_GPIO_EXT_PORTA_GPIO_EXT_PORTA |
uint32_t | __pad0__: 8 | UNDEFINED |
#define ALT_GPIO_EXT_PORTA_GPIO_EXT_PORTA_LSB 0 |
The Least Significant Bit (LSB) position of the ALT_GPIO_EXT_PORTA_GPIO_EXT_PORTA register field.
#define ALT_GPIO_EXT_PORTA_GPIO_EXT_PORTA_MSB 23 |
The Most Significant Bit (MSB) position of the ALT_GPIO_EXT_PORTA_GPIO_EXT_PORTA register field.
#define ALT_GPIO_EXT_PORTA_GPIO_EXT_PORTA_WIDTH 24 |
The width in bits of the ALT_GPIO_EXT_PORTA_GPIO_EXT_PORTA register field.
#define ALT_GPIO_EXT_PORTA_GPIO_EXT_PORTA_SET_MSK 0x00ffffff |
The mask used to set the ALT_GPIO_EXT_PORTA_GPIO_EXT_PORTA register field value.
#define ALT_GPIO_EXT_PORTA_GPIO_EXT_PORTA_CLR_MSK 0xff000000 |
The mask used to clear the ALT_GPIO_EXT_PORTA_GPIO_EXT_PORTA register field value.
#define ALT_GPIO_EXT_PORTA_GPIO_EXT_PORTA_RESET 0x0 |
The reset value of the ALT_GPIO_EXT_PORTA_GPIO_EXT_PORTA register field.
#define ALT_GPIO_EXT_PORTA_GPIO_EXT_PORTA_GET | ( | value | ) | (((value) & 0x00ffffff) >> 0) |
Extracts the ALT_GPIO_EXT_PORTA_GPIO_EXT_PORTA field value from a register.
#define ALT_GPIO_EXT_PORTA_GPIO_EXT_PORTA_SET | ( | value | ) | (((value) << 0) & 0x00ffffff) |
Produces a ALT_GPIO_EXT_PORTA_GPIO_EXT_PORTA register field value suitable for setting the register.
#define ALT_GPIO_EXT_PORTA_RESET 0x00000000 |
The reset value of the ALT_GPIO_EXT_PORTA register.
#define ALT_GPIO_EXT_PORTA_OFST 0x50 |
The byte offset of the ALT_GPIO_EXT_PORTA register from the beginning of the component.
#define ALT_GPIO_EXT_PORTA_ADDR | ( | base | ) | ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_GPIO_EXT_PORTA_OFST)) |
The address of the ALT_GPIO_EXT_PORTA register.
typedef struct ALT_GPIO_EXT_PORTA_s ALT_GPIO_EXT_PORTA_t |
The typedef declaration for register ALT_GPIO_EXT_PORTA.