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Altera SoCAL
16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
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Card Threshold Control Register
Register Layout
Bits | Access | Reset | Description |
---|---|---|---|
[0] | RW | 0x0 | ALT_SDMMC_CARDTHRCTL_CARDRDTHREN |
[1] | RW | 0x0 | ALT_SDMMC_CARDTHRCTL_BUSY_CLR_INT_EN |
[15:2] | ??? | 0x0 | UNDEFINED |
[28:16] | RW | 0x0 | ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD |
[31:29] | ??? | 0x0 | UNDEFINED |
Field : cardrdthren | ||||||||||
Card Read Threshold Enable ■ 1'b0 - Card Read Threshold disabled ■ 1'b1 - Card Read Threshold enabled. Host Controller initiates Read Transfer only if CardRdThreshold amount of space is available in receive FIFO. Field Enumeration Values:
Field Access Macros: | ||||||||||
#define | ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_E_DISD 0x0 | |||||||||
#define | ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_E_END 0x1 | |||||||||
#define | ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_LSB 0 | |||||||||
#define | ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_MSB 0 | |||||||||
#define | ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_WIDTH 1 | |||||||||
#define | ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_SET_MSK 0x00000001 | |||||||||
#define | ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_CLR_MSK 0xfffffffe | |||||||||
#define | ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_RESET 0x0 | |||||||||
#define | ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_GET(value) (((value) & 0x00000001) >> 0) | |||||||||
#define | ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_SET(value) (((value) << 0) & 0x00000001) | |||||||||
Field : busy_clr_int_en | |
Busy Clear Interrupt generation: ■ 1'b0 - Busy Clear Interrupt disabled ■ 1'b1 - Busy Clear Interrupt enabled Note: The application can disable this feature if it does not want to wait for a Busy Clear Interrupt. For example, in a multi-card scenario, the application can switch to the other card without waiting for a busy to be completed. In such cases, the application can use the polling method to determine the status of busy. By default this feature is disabled and backward-compatible to the legacy drivers where polling is used. Field Access Macros: | |
#define | ALT_SDMMC_CARDTHRCTL_BUSY_CLR_INT_EN_LSB 1 |
#define | ALT_SDMMC_CARDTHRCTL_BUSY_CLR_INT_EN_MSB 1 |
#define | ALT_SDMMC_CARDTHRCTL_BUSY_CLR_INT_EN_WIDTH 1 |
#define | ALT_SDMMC_CARDTHRCTL_BUSY_CLR_INT_EN_SET_MSK 0x00000002 |
#define | ALT_SDMMC_CARDTHRCTL_BUSY_CLR_INT_EN_CLR_MSK 0xfffffffd |
#define | ALT_SDMMC_CARDTHRCTL_BUSY_CLR_INT_EN_RESET 0x0 |
#define | ALT_SDMMC_CARDTHRCTL_BUSY_CLR_INT_EN_GET(value) (((value) & 0x00000002) >> 1) |
#define | ALT_SDMMC_CARDTHRCTL_BUSY_CLR_INT_EN_SET(value) (((value) << 1) & 0x00000002) |
Field : cardrdthreshold | |
Card Read Threshold size; N depends on the FIFO size: ■ N = 27 FIFO_DEPTH is 128 ■ N = 26 FIFO_DEPTH is 64 ■ N = 25 FIFO_DEPTH is 32 ■ N = 24 FIFO_DEPTH is 16 ■ N = 23 FIFO_DEPTH is 8 Note: The maximum programmable value of Card Read Threshold size is 512. Field Access Macros: | |
#define | ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD_LSB 16 |
#define | ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD_MSB 28 |
#define | ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD_WIDTH 13 |
#define | ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD_SET_MSK 0x1fff0000 |
#define | ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD_CLR_MSK 0xe000ffff |
#define | ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD_RESET 0x0 |
#define | ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD_GET(value) (((value) & 0x1fff0000) >> 16) |
#define | ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD_SET(value) (((value) << 16) & 0x1fff0000) |
Data Structures | |
struct | ALT_SDMMC_CARDTHRCTL_s |
Macros | |
#define | ALT_SDMMC_CARDTHRCTL_RESET 0x00000000 |
#define | ALT_SDMMC_CARDTHRCTL_OFST 0x100 |
Typedefs | |
typedef struct ALT_SDMMC_CARDTHRCTL_s | ALT_SDMMC_CARDTHRCTL_t |
struct ALT_SDMMC_CARDTHRCTL_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_CARDTHRCTL.
Data Fields | ||
---|---|---|
uint32_t | cardrdthren: 1 | ALT_SDMMC_CARDTHRCTL_CARDRDTHREN |
uint32_t | busy_clr_int_en: 1 | ALT_SDMMC_CARDTHRCTL_BUSY_CLR_INT_EN |
uint32_t | __pad0__: 14 | UNDEFINED |
uint32_t | cardrdthreshold: 13 | ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD |
uint32_t | __pad1__: 3 | UNDEFINED |
#define ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_E_DISD 0x0 |
Enumerated value for register field ALT_SDMMC_CARDTHRCTL_CARDRDTHREN
Card Read Threshold is disabled
#define ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_E_END 0x1 |
Enumerated value for register field ALT_SDMMC_CARDTHRCTL_CARDRDTHREN
Card Read Threshold is enabled
#define ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_LSB 0 |
The Least Significant Bit (LSB) position of the ALT_SDMMC_CARDTHRCTL_CARDRDTHREN register field.
#define ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_MSB 0 |
The Most Significant Bit (MSB) position of the ALT_SDMMC_CARDTHRCTL_CARDRDTHREN register field.
#define ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_WIDTH 1 |
The width in bits of the ALT_SDMMC_CARDTHRCTL_CARDRDTHREN register field.
#define ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_SET_MSK 0x00000001 |
The mask used to set the ALT_SDMMC_CARDTHRCTL_CARDRDTHREN register field value.
#define ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_CLR_MSK 0xfffffffe |
The mask used to clear the ALT_SDMMC_CARDTHRCTL_CARDRDTHREN register field value.
#define ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_RESET 0x0 |
The reset value of the ALT_SDMMC_CARDTHRCTL_CARDRDTHREN register field.
#define ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_GET | ( | value | ) | (((value) & 0x00000001) >> 0) |
Extracts the ALT_SDMMC_CARDTHRCTL_CARDRDTHREN field value from a register.
#define ALT_SDMMC_CARDTHRCTL_CARDRDTHREN_SET | ( | value | ) | (((value) << 0) & 0x00000001) |
Produces a ALT_SDMMC_CARDTHRCTL_CARDRDTHREN register field value suitable for setting the register.
#define ALT_SDMMC_CARDTHRCTL_BUSY_CLR_INT_EN_LSB 1 |
The Least Significant Bit (LSB) position of the ALT_SDMMC_CARDTHRCTL_BUSY_CLR_INT_EN register field.
#define ALT_SDMMC_CARDTHRCTL_BUSY_CLR_INT_EN_MSB 1 |
The Most Significant Bit (MSB) position of the ALT_SDMMC_CARDTHRCTL_BUSY_CLR_INT_EN register field.
#define ALT_SDMMC_CARDTHRCTL_BUSY_CLR_INT_EN_WIDTH 1 |
The width in bits of the ALT_SDMMC_CARDTHRCTL_BUSY_CLR_INT_EN register field.
#define ALT_SDMMC_CARDTHRCTL_BUSY_CLR_INT_EN_SET_MSK 0x00000002 |
The mask used to set the ALT_SDMMC_CARDTHRCTL_BUSY_CLR_INT_EN register field value.
#define ALT_SDMMC_CARDTHRCTL_BUSY_CLR_INT_EN_CLR_MSK 0xfffffffd |
The mask used to clear the ALT_SDMMC_CARDTHRCTL_BUSY_CLR_INT_EN register field value.
#define ALT_SDMMC_CARDTHRCTL_BUSY_CLR_INT_EN_RESET 0x0 |
The reset value of the ALT_SDMMC_CARDTHRCTL_BUSY_CLR_INT_EN register field.
#define ALT_SDMMC_CARDTHRCTL_BUSY_CLR_INT_EN_GET | ( | value | ) | (((value) & 0x00000002) >> 1) |
Extracts the ALT_SDMMC_CARDTHRCTL_BUSY_CLR_INT_EN field value from a register.
#define ALT_SDMMC_CARDTHRCTL_BUSY_CLR_INT_EN_SET | ( | value | ) | (((value) << 1) & 0x00000002) |
Produces a ALT_SDMMC_CARDTHRCTL_BUSY_CLR_INT_EN register field value suitable for setting the register.
#define ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD_LSB 16 |
The Least Significant Bit (LSB) position of the ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD register field.
#define ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD_MSB 28 |
The Most Significant Bit (MSB) position of the ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD register field.
#define ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD_WIDTH 13 |
The width in bits of the ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD register field.
#define ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD_SET_MSK 0x1fff0000 |
The mask used to set the ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD register field value.
#define ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD_CLR_MSK 0xe000ffff |
The mask used to clear the ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD register field value.
#define ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD_RESET 0x0 |
The reset value of the ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD register field.
#define ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD_GET | ( | value | ) | (((value) & 0x1fff0000) >> 16) |
Extracts the ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD field value from a register.
#define ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD_SET | ( | value | ) | (((value) << 16) & 0x1fff0000) |
Produces a ALT_SDMMC_CARDTHRCTL_CARDRDTHRESHOLD register field value suitable for setting the register.
#define ALT_SDMMC_CARDTHRCTL_RESET 0x00000000 |
The reset value of the ALT_SDMMC_CARDTHRCTL register.
#define ALT_SDMMC_CARDTHRCTL_OFST 0x100 |
The byte offset of the ALT_SDMMC_CARDTHRCTL register from the beginning of the component.
typedef struct ALT_SDMMC_CARDTHRCTL_s ALT_SDMMC_CARDTHRCTL_t |
The typedef declaration for register ALT_SDMMC_CARDTHRCTL.