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Altera SoCAL
16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
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Enables and Disables all SPI operations.
Register Layout
Bits | Access | Reset | Description |
---|---|---|---|
[0] | RW | 0x0 | Enable |
[31:1] | ??? | 0x0 | UNDEFINED |
Field : Enable - spi_en | ||||||||||
Enables and disables all SPI Master operations. When disabled, all serial transfers are halted immediately. Transmit and receive FIFO buffers are cleared when the device is disabled. It is impossible to program some of the SPI Master control registers when enabled. Field Enumeration Values:
Field Access Macros: | ||||||||||
#define | ALT_SPIM_SPIENR_SPI_EN_E_DISD 0x0 | |||||||||
#define | ALT_SPIM_SPIENR_SPI_EN_E_END 0x1 | |||||||||
#define | ALT_SPIM_SPIENR_SPI_EN_LSB 0 | |||||||||
#define | ALT_SPIM_SPIENR_SPI_EN_MSB 0 | |||||||||
#define | ALT_SPIM_SPIENR_SPI_EN_WIDTH 1 | |||||||||
#define | ALT_SPIM_SPIENR_SPI_EN_SET_MSK 0x00000001 | |||||||||
#define | ALT_SPIM_SPIENR_SPI_EN_CLR_MSK 0xfffffffe | |||||||||
#define | ALT_SPIM_SPIENR_SPI_EN_RESET 0x0 | |||||||||
#define | ALT_SPIM_SPIENR_SPI_EN_GET(value) (((value) & 0x00000001) >> 0) | |||||||||
#define | ALT_SPIM_SPIENR_SPI_EN_SET(value) (((value) << 0) & 0x00000001) | |||||||||
Data Structures | |
struct | ALT_SPIM_SPIENR_s |
Macros | |
#define | ALT_SPIM_SPIENR_OFST 0x8 |
#define | ALT_SPIM_SPIENR_ADDR(base) ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_SPIM_SPIENR_OFST)) |
Typedefs | |
typedef struct ALT_SPIM_SPIENR_s | ALT_SPIM_SPIENR_t |
struct ALT_SPIM_SPIENR_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_SPIM_SPIENR.
Data Fields | ||
---|---|---|
uint32_t | spi_en: 1 | Enable |
uint32_t | __pad0__: 31 | UNDEFINED |
#define ALT_SPIM_SPIENR_SPI_EN_E_DISD 0x0 |
Enumerated value for register field ALT_SPIM_SPIENR_SPI_EN
Disables serial transfer operations
#define ALT_SPIM_SPIENR_SPI_EN_E_END 0x1 |
Enumerated value for register field ALT_SPIM_SPIENR_SPI_EN
Enables serial transfer operations
#define ALT_SPIM_SPIENR_SPI_EN_LSB 0 |
The Least Significant Bit (LSB) position of the ALT_SPIM_SPIENR_SPI_EN register field.
#define ALT_SPIM_SPIENR_SPI_EN_MSB 0 |
The Most Significant Bit (MSB) position of the ALT_SPIM_SPIENR_SPI_EN register field.
#define ALT_SPIM_SPIENR_SPI_EN_WIDTH 1 |
The width in bits of the ALT_SPIM_SPIENR_SPI_EN register field.
#define ALT_SPIM_SPIENR_SPI_EN_SET_MSK 0x00000001 |
The mask used to set the ALT_SPIM_SPIENR_SPI_EN register field value.
#define ALT_SPIM_SPIENR_SPI_EN_CLR_MSK 0xfffffffe |
The mask used to clear the ALT_SPIM_SPIENR_SPI_EN register field value.
#define ALT_SPIM_SPIENR_SPI_EN_RESET 0x0 |
The reset value of the ALT_SPIM_SPIENR_SPI_EN register field.
#define ALT_SPIM_SPIENR_SPI_EN_GET | ( | value | ) | (((value) & 0x00000001) >> 0) |
Extracts the ALT_SPIM_SPIENR_SPI_EN field value from a register.
#define ALT_SPIM_SPIENR_SPI_EN_SET | ( | value | ) | (((value) << 0) & 0x00000001) |
Produces a ALT_SPIM_SPIENR_SPI_EN register field value suitable for setting the register.
#define ALT_SPIM_SPIENR_OFST 0x8 |
The byte offset of the ALT_SPIM_SPIENR register from the beginning of the component.
#define ALT_SPIM_SPIENR_ADDR | ( | base | ) | ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_SPIM_SPIENR_OFST)) |
The address of the ALT_SPIM_SPIENR register.
typedef struct ALT_SPIM_SPIENR_s ALT_SPIM_SPIENR_t |
The typedef declaration for register ALT_SPIM_SPIENR.