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Altera SoCAL
16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
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Power Enable Register
Register Layout
Bits | Access | Reset | Description |
---|---|---|---|
[0] | RW | 0x0 | ALT_SDMMC_PWREN_POWER_EN |
[31:1] | ??? | 0x0 | UNDEFINED |
Field : power_enable | ||||||||||
Power on/off switch for up to 16 cards; for example, bit[0] controls card 0.Once power is turned on, firmware should wait for regulator/switch ramp-up time before trying to initialize card. 0-power off 1-power on Only NUM_CARDS number of bits are implemented.Bit values output to card_power_en port. Optional feature; ports can be used as general-purpose outputs. Field Enumeration Values:
Field Access Macros: | ||||||||||
#define | ALT_SDMMC_PWREN_POWER_EN_E_OFF 0x0 | |||||||||
#define | ALT_SDMMC_PWREN_POWER_EN_E_ON 0x1 | |||||||||
#define | ALT_SDMMC_PWREN_POWER_EN_LSB 0 | |||||||||
#define | ALT_SDMMC_PWREN_POWER_EN_MSB 0 | |||||||||
#define | ALT_SDMMC_PWREN_POWER_EN_WIDTH 1 | |||||||||
#define | ALT_SDMMC_PWREN_POWER_EN_SET_MSK 0x00000001 | |||||||||
#define | ALT_SDMMC_PWREN_POWER_EN_CLR_MSK 0xfffffffe | |||||||||
#define | ALT_SDMMC_PWREN_POWER_EN_RESET 0x0 | |||||||||
#define | ALT_SDMMC_PWREN_POWER_EN_GET(value) (((value) & 0x00000001) >> 0) | |||||||||
#define | ALT_SDMMC_PWREN_POWER_EN_SET(value) (((value) << 0) & 0x00000001) | |||||||||
Data Structures | |
struct | ALT_SDMMC_PWREN_s |
Macros | |
#define | ALT_SDMMC_PWREN_RESET 0x00000000 |
#define | ALT_SDMMC_PWREN_OFST 0x4 |
Typedefs | |
typedef struct ALT_SDMMC_PWREN_s | ALT_SDMMC_PWREN_t |
struct ALT_SDMMC_PWREN_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_SDMMC_PWREN.
Data Fields | ||
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uint32_t | power_enable: 1 | ALT_SDMMC_PWREN_POWER_EN |
uint32_t | __pad0__: 31 | UNDEFINED |
#define ALT_SDMMC_PWREN_POWER_EN_E_OFF 0x0 |
Enumerated value for register field ALT_SDMMC_PWREN_POWER_EN
Power Off
#define ALT_SDMMC_PWREN_POWER_EN_E_ON 0x1 |
Enumerated value for register field ALT_SDMMC_PWREN_POWER_EN
Power On
#define ALT_SDMMC_PWREN_POWER_EN_LSB 0 |
The Least Significant Bit (LSB) position of the ALT_SDMMC_PWREN_POWER_EN register field.
#define ALT_SDMMC_PWREN_POWER_EN_MSB 0 |
The Most Significant Bit (MSB) position of the ALT_SDMMC_PWREN_POWER_EN register field.
#define ALT_SDMMC_PWREN_POWER_EN_WIDTH 1 |
The width in bits of the ALT_SDMMC_PWREN_POWER_EN register field.
#define ALT_SDMMC_PWREN_POWER_EN_SET_MSK 0x00000001 |
The mask used to set the ALT_SDMMC_PWREN_POWER_EN register field value.
#define ALT_SDMMC_PWREN_POWER_EN_CLR_MSK 0xfffffffe |
The mask used to clear the ALT_SDMMC_PWREN_POWER_EN register field value.
#define ALT_SDMMC_PWREN_POWER_EN_RESET 0x0 |
The reset value of the ALT_SDMMC_PWREN_POWER_EN register field.
#define ALT_SDMMC_PWREN_POWER_EN_GET | ( | value | ) | (((value) & 0x00000001) >> 0) |
Extracts the ALT_SDMMC_PWREN_POWER_EN field value from a register.
#define ALT_SDMMC_PWREN_POWER_EN_SET | ( | value | ) | (((value) << 0) & 0x00000001) |
Produces a ALT_SDMMC_PWREN_POWER_EN register field value suitable for setting the register.
#define ALT_SDMMC_PWREN_RESET 0x00000000 |
The reset value of the ALT_SDMMC_PWREN register.
#define ALT_SDMMC_PWREN_OFST 0x4 |
The byte offset of the ALT_SDMMC_PWREN register from the beginning of the component.
typedef struct ALT_SDMMC_PWREN_s ALT_SDMMC_PWREN_t |
The typedef declaration for register ALT_SDMMC_PWREN.